Natural or artificial threads or fibres and spinning (D01)

D   Textiles; paper(37723)
D01            Natural or artificial threads or fibres; spinning(10845)

ethod for selective evaluating hydratcellulose fibres as precursor with production of carbon fibres // 2642561
FIELD: chemistry.SUBSTANCE: method is described that includes heating hydratecellulose fibres, examining their thermochemical transformation into carbon fibres, and determining physical and mechanical properties, characterized in that the test HC-fibres are subjected to derivatographic analysis in comparison with a similar analysis of the HC-sample of the reference fibre, evaluating the obtained data, selecting the test HC-fibres nearest to the reference HC-fibre during pyrolysis is carried out, then the selected HC-fibre is tested for the process of the thermochemical transformation into a carbon fibre using the technology of producing a reference sample and the technology mode for producing the carbon fibre of the test fibre is corrected.EFFECT: high efficiency of selective evaluation and process optimisation in the production of carbon fibres based on new hydrate-cellulose raw materials.1 dwg, 1 tbl, 1 ex

Composite reinforcing yarn, prepreg, tape for 3d printing and installation for their production // 2640553
FIELD: chemistry.SUBSTANCE: composite reinforcing yarn contains a roving of reinforcing fibers impregnated with a thermosetting binder, with a cross-section in the form of a circle with the diameter of 0.1-0.7 mm or ellipse with the ellipticity of 1 to 2 and the largest diameter of 0.1-0.7 mm. Impregnated roving is subjected to a temperature treatment until the thermosetting binder is completely cured. From the filament, prepreg is obtained by adding a thermoplastic binder. The tape is obtained by joining the yarn or prepreg with jumper wires made of thermoplastic material. The yarn is produced in an installation containing a bobbin, on which a coil with roving of reinforcing fibers or reinforcing and functional fibers is installed, an impregnating device, two heat treatment chambers, a ready-made filament receiving unit, a receiving coil. The temperature in the first chamber is 70-130°C, in the second chamber - 160-400°C. To produce the prepreg, a thermoplastic coating device is added to the installation to impregnate the thermosetting binder and fully cured roving.EFFECT: invention allows to reduce the complexity of producing parts with a thermoplastic matrix, the duration of producing the product; increasing the shelf life of raw materials and the efficiency of producing the products from composite materials.13 cl, 6 dwg
Laboratory line of production and research of carbon fibres // 2639910
FIELD: technological processes.SUBSTANCE: line includes two interconnected independent units: a thermal chamber for oxidative thermostabilization of polymer fibres up to 300°C, a through furnace for treatment of oxidized polymer fibres from 800 to 3200°C and an aggregate for possible finishing of the carbon fibre produced. The thermal chamber unit contains a thermostatically controlled sealed thermal chamber 1 with a temperature control system configured to control the temperature of the walls and the supply air according to a predetermined program in an automatic mode, a system 4 of fibre feeding, receiving and holding, equipped with a worm gear, a heated air supply system including an air pump 3 and a heater 2, a fibre tension measuring system comprising of a device 6 for fixing the deformation changes in the fibre, a roller 7 and a weight 8 for creating the required load. The through furnace unit of the oxidized polymer fibre heat treatment includes a heat treatment furnace body, divided into a precarbonization furnace 9 and a carbonization furnace 10, hermetically connected to each other, a system for fixing and controlling the temperature in the furnace, a system for removing and neutralizing the thermal destruction gases, a fibre feeding system containing a creel 11 and seven-rolls 13, a system for receiving fibre from the furnace, including the seven-rolls 13 and a receiving-winding device 12, a roll speed control system, a tension force measuring system and an inert gas supply system including a container 15. The apparatus for finishing the produced carbon fibre comprises of an impregnating bath 19, three-rolls 18 and a drying oven 20.EFFECT: study of the mechanism of thermostabilization, carbonization and graphitization, improvement of fibre characteristics.5 cl, 6 dwg

Formation of profile fibre with simultaneous matrix application // 2637970
FIELD: textile, paper.SUBSTANCE: latter may include a fibre body and a matrix layer. The fibre body may have at least one fibre surface. The matrix layer may at least partly cover the fibre surface and can be applied during the formation of the fibre body. A method of manufacturing a fibre with a coating for a composite product comprises: forming a fibre body, applying a matrix layer to the fibre surface at the same time as forming a fibre body. The matrix is applied to the fibre surface with the surface thickness of the matrix per angle of the fibre body.EFFECT: improved quality of the manufactured fibre for a composite product, especially wherein the fibre has flat surfaces and relatively sharp angles.11 cl, 46 dwg

Device for oxidating polyacrylonitrile fibres by producing carbon fibres // 2637959
FIELD: chemistry.SUBSTANCE: device for oxidating polyacrylonitrile fibres by the production of carbon fibres contains a body 1 with removable end walls 5 having a through window 6 for input and output of the processed fibres 4, guide shafts 20 located outside the body 1. Inside the body 1 there is an oxidation chamber 2 with channels 3 for moving the fibres, which are combined into several temperature zones 8. Each temperature zone 8 is associated with at least one heater 15 and a fan 12. The temperature zones 8 are made insulated from each other, each of which is provided with a receiver cavity 9 and an aspirating cavity 10. Each receiver cavity 9 is connected to the pumping channel 11 of the fan 12 through the perforated walls 13 and channels 3 to move the fibres from one side of the chamber 2, and each of the aspiring cavity 10 is connected to the channels 3 to move the fibres from the other opposite side of the chamber 2, and the suction channel 14 of the heater 15. The device comprises means for removing exhaust gases from the oxidation chamber 2 that are connected to the pumping channel 11 of the fan 12 and means for enriching the oxidizing medium connected to the suction channel 14 of the heater 15. The means for removing exhaust gases and means for enriching the oxidizing medium are made in the form of nozzles 16, 18 with chokes 17, 19.EFFECT: increasing the efficiency of heat treatment of PAN-fibres due to the equivalence of temperatures and velocities of gas flows, streamlined fibres in the channels of each temperature zone of the oxidation chamber.2 cl, 3 dwg
Polyamide compounds with improved optical properties // 2637556
FIELD: chemistry.SUBSTANCE: polymer composition comprises, at least, one polyamide and, at least, one compound of the formula , in which x is 1, 2 or 3; R1 and R2are independently selected from hydrogen, linear C1-C7-alkyl, branched C3-C10-alkyl, unsubstituted or substituted C3-C12-cycloalkyl, unsubstituted or substituted C3-C12cycloalkyl-C1-C4-alkyl, unsubstituted or substituted aryl and unsubstituted or substituted aryl-C1-C4-alkyl; and Z is trans 1,4-cyclohexanediyl. The use of a compound of formula I in a polymer composition for improving, at least, one optical property selected from increased transparency, increased laser transparency and reduced turbidity, and a moulded article produced from the said composition are also described.EFFECT: providing improved optical properties selected from reduced turbidity, improved transparency and improved laser transparency in polyamide compositions using the compound of formula I.23 cl, 23 tbl, 17 ex

Synthetic fiber and artificial lawn comprising such fiber // 2637261
FIELD: construction.SUBSTANCE: synthetic monofilament-like fiber for use in an artificial lawn, in particular for use in artificial sports lawns, having a curved section, as well as the ratio of the central line arc length to the maximum thickness of less than 8, preferably between 4.5 and 3.8, and more preferably in the range between 4.4 and 4.0, and the peripheral surface of said fiber has a wavy structure.EFFECT: improving the game characteristics.18 cl, 13 dwg
ethod of producing purified cellulose from lumber fibre // 2637015
FIELD: chemistry.SUBSTANCE: method includes mechanical treatment, liquid treatment to destroy associated impurities, washing with warm water, oxidizing treatment with an alkaline solution of hydrogen peroxide containing a stabilizer, the first washing with hot water, oxidizing cooking, the second washing with hot and warm water, spinning in a centrifuge, treatment for the destruction of associated impurities is carried out with hot water at a constant water temperature of 98-100°C for 30 minutes, oxidizing and cooking are carried out at a constant value of the silicate module and a constant solution temperature of 98-100°C.EFFECT: elimination of multi-stage processing and the use of acids due to a higher content of hydrogen peroxide in solutions for oxidative processing and cooking, increasing the productivity of equipment while reducing the amount of harmful production waste products in the form of products of processing linseed fibre with a solution of mineral acid.3 cl, 1 tbl

Sealing gate for furnace for continuous heat treatment of fiber carbon material // 2636776
FIELD: machine engineering.SUBSTANCE: sealing gate for the furnace for continuous heat treatment of the carbon fiber material comprises a body 1 with a longitudinal through passage 2 for the material to be treated 3. The body 1 is made in the form of two aligned sections - a receiving section 4 and an outlet section 5. On one side, the body 1 is equipped with a flange 6 for fastening to the furnace working chamber and flaps 7 at the channel 2 outlet. Above and below the channel 2 in the receiving section 4 heat-insulated heated chambers 8 are placed, the lower one has a cavity 9 with nozzles 10 for process gas heating. In the side wall of the receiving section 4 channel 2, a window 11 is provided for communicating via a heated branch pipe 12 with a burner 13 for exhaust gases combustion. The burner 13 is provided with a slide gate 14 to adjust its outlet section.EFFECT: increased efficiency of heat treatment by increasing the gate tightness.2 cl, 4 dwg

Two-component fibre containing nanowires for application in optically transparent composites // 2636729
FIELD: physics.SUBSTANCE: macrofibre for a composite product comprises a plurality of substantially unidirectional inner fibres, each having a final cross-sectional dimension of the inner fibre less than about 100 nanometres; the inner fibres are surrounded by a matrix material. The method of manufacturing of a macrofibre is also described.EFFECT: invention provides the creation of high-strength composite transparent products having a fibre configuration providing improved optical quality with reduced optical distortion.14 cl, 17 dwg
Lyocell material for cigarette filter and method of its production // 2636728
FIELD: tobacco industry.SUBSTANCE: method for producing a lyocell material includes spinning at 100-110°C a lyocell spinning solution containing cellulose pulp and the aqueous solution of N-methylmorpholine-N-oxide, in which the pulp concentration is 8-11 wt %. The spun lyocell solution is coagulated to produce coagulated lyocell multifilament yarn. The lyocell multifilament yarn is washed with water, treated with oil and dried. The lyocell multifilament yarn is then corrugated to produce a corrugated tow having a tensile strength of 1-2 g/den.EFFECT: providing the production of a lyocell material for a cigarette filter with low strength, which contributes to its biodegradation, increasing the efficiency of the process of manufacturing cigarette filters.17 cl, 1 tbl, 15 ex
Lyocell material for tobacco filter and method of its preparing // 2636547
FIELD: tobacco industry.SUBSTANCE: invention relates to a method of producing a lyocell material for a cigarette filter, including: spinning a lyocell spinning solution containing cellulose pulp and the aqueous solution of N-methylmorpholin-N-oxide (NMMO) (S1); coagulating the lyocell spinning solution spun at stage (S1) to obtain lyocell multifilament threads (S2); washing the lyocell multifilament threads obtained at stage (S2)-(S3) with water; oil treatment of the lyocell multifilament threads washed with water at stage (S3)-(S4); and corrugating the lyocell multifilament threads treated with oil at stage (S4), with obtaining a corrugated tow (S5), the cellulose pulp containing from 85 wt % to 97 wt % of alpha-cellulose and having a polymerisation degree (DPw) from 600 to 1700.EFFECT: biodegradable and environmentally friendly material.11 cl, 1 tbl

Sealing gate to conveyor furnace for continuous heat treatment of chemical fibre in manufacture of carbon fibrous material // 2636541
FIELD: machine engineering.SUBSTANCE: gate has a body 1 with a flange 2 for attachment to a furnace working chamber 3 and a longitudinal rectangular through channel 4. The through channel 4 is made open at a first end which is associated with input or output port 5 of the working chamber 3. At a second end opposite to the first one there are seals 6 providing sealing when contacting the processed fibre 11 moving along the channel 4. The gate also gas supply means in the form of manifolds 25. The second end of the through channel 4 is provided with a pair of walls 7 rigidly interconnected and inclined to the axis of the channel of walls 7 which are engageable with the seals 6 for their interaction (movement relative to each other). The seals 6 are pressed against the inclined walls 7 by means of adjustable clamps 18. For moving the seals 6 along the inclined walls 7 during opening-closing of the gate, a movement mechanism is used that is made in the form of two pairs of upper 12 and lower 13 movable parallelograms connected to each other by central balancing links 14, and a pair of eccentric drives 16 locked by an axle 15 and installed in the upper channel wall 4. Each seal 6 is made of a pack of compressed heat-resistant tissues and having an inclined surface 9 conjugated with the inclined wall 7, and a horizontal working surface 10 formed by the ends of cloth threads similar to a brush. The horizontal surface 10 is in contact with the processed fiber 11. The eccentric drives 16 are connected to links of the lower pair of parallelograms 13. On horizontal links of parallelograms 12, 13 there are seals 6 secured by means of swinging shackles 17, and adjustable clamps 18 of the seals 6 are mounted on the inclined walls 7.EFFECT: increased heat treatment efficiency of the fibrous material by improving the gate sealing quality.3 cl, 2 dwg

Device for washing wool in shallow environments // 2635976
FIELD: technological processes.SUBSTANCE: device comprises a conveyor belt for conveying wool. According to the invention, there are two working conveyors mounted one above the other, the belts of which are made of a porous absorbent material, for example, lycra, the drive and tension shafts of which are mounted on the frame, rotatably from the electric drive, to the idle branches of two working conveyors, mounted with the possibility of applying working compositions by rolling with the help of spreading devices located in the upper and lower part of the device and consisting of baths for the working compositions in the form of a foaming detergent and fluted shafts, which are immersed in the bath and mounted with the possibility of obtaining the rotation from the drive, a technological shaft with the possibility of bending strips of the working conveyor is mounted between the drive shaft and the auxiliary shaft of the working conveyor. Under the drive shaft, a squeegee shaft is mounted, in addition, the operating members are mounted in the upper and lower parts of the device and are in the form of porous plates of an elastic porous material, for example, a sponge, which are placed in holders, wherein the operating element located at the bottom of the device is mounted with the possibility of reciprocating motion perpendicular to the plane of the belts of the working conveyors, for example, by means of a crank mechanism. The conveyor belt for conveying wool is made in the form of a belt feeding conveyor mounted above the tension shaft, and a belt scraper conveyor is mounted under the drive shaft.EFFECT: water costs for washing wool are reduced, felting is reduced, reliability is increased and it becomes possible to mount the device in an automated line.2 dwg
Fence for textile machine spindles // 2634889
FIELD: textile, paper.SUBSTANCE: fence for textile machine spindles comprises a casing mounted on the spindle rail of the machine at the level of its spindles, along their row, with vibration and sound absorbing layers attached to its inner surface, and from the outside - slats attached thereto in cantilever along the row of the machine spindles, with a vibration-absorbing layer arranged on their bottom surface, wherein the spindles on the spindle rail of the machine are mounted by means of elastic elastomer gaskets, the ratio of their total stiffness to the flexural rigidity of the spindle rail being in the optimum range of values: 0.01…0.1, and the thickness of the vibration-absorbing layer arranged on the slats is 2…4 times higher than the thickness of the slats; the vibration-absorbing material layer is represented by an elastic vibration-absorbing sheet material with a coefficient of internal loss not less than 0.2, or a composite material, or a plastic compound; the sound-absorbing casing material is represented by elements of basalt-based mineral wool, or mineral wool, or basalt wool, or glass wool lined with glass felt, or a foamed polymer, e.g. polyethylene or polypropylene, wherein a sound-absorbing element across its entire surface is lined with an acoustically transparent material, e.g. a fiberglass or a polymer, characterized in that the fence of the spindles comprise a sound-absorbing device made in the form of a stiff wall and a perforated wall, between which a multilayer sound-absorbing element is arranged, made in the form of five layers, two of which, adjacent to the walls, are sound-absorbing layers of materials with different densities, and three central layers are combined, wherein the axial layer is made sound-absorbing, and two symmetrically arranged layers adjacent thereto are made of a sound-reflecting material of a complex profile, consisting of evenly spaced hollow tetrahedra, allowing to reflect sound waves falling in all directions, each of the perforated walls has the following perforation parameters: the diameter of the holes 3÷7 mm, the perforation percentage 10%÷15%. As per shape, the holes can be made as holes of a round, triangular, square, rectangular, or diamond profile. In case of non-circular holes, the maximum diameter of a circle inscribed in a polygon should be considered as the nominal diameter; boards of basalt-based mineral wool, of mineral wool, or basalt wool, or glass wool lined with glass felt, are used as a sound-absorbing material. The sound-absorbing element over its entire surface is lined with an acoustically transparent material, e.g. a fiberglass or a polymer.EFFECT: increased noise reduction efficiency.3 dwg

ethod of hardening carbon fibres // 2634450
FIELD: chemistry.SUBSTANCE: invention relates to hardening of carbon fibres (CF) used to produce composite materials. The method of hardening carbon fibres includes heat treatment with the drawing of fibres through a heating zone. Heat treatment is carried out in the high-temperature heating zone of 2500-3000°C, in an inert atmosphere, for 18-32 seconds, with a load applied to the treated fibre in the range of 1.0 to 3.75 g/tex due to the difference in the speeds of the feeding and receiving mechanisms. The load on the fibre being treated is inversely proportional to the residence time in the high-temperature heating zone. In addition, additional impregnation of hydrocarbons with an aprotic composition of an aqueous solution of polyvinyl alcohol of 6-8 g/liter and drying in a quartz tube furnace can be carried out, with an increase in temperature, depending on the residence time in the drying zone from 60 to 120 seconds in the range of 130-300°C.EFFECT: invention makes it possible to produce carbon fibre with an increased value of ultimate tensile strength and an increased value of the elasticity module.2 cl, 8 dwg, 3 tbl

ethod of producing highly porous silicon nitride material with fibrous structure and installation for its implementation // 2634443
FIELD: technological processes.SUBSTANCE: preparation of a highly porous silicon nitride material with a fibrous structure includes the production of fibres from a thermoplastic slip based on silicon with a thermoplastic bond, laying of fibres, forming a framework structure followed by stripping of the bundle during heating, and reaction sintering in nitrogen. The fibres are produced by drawing a continuous filament through the melt of the thermoplastic slip, and the fibres are laid by wrapping the fibres on the substrates in the form of plates of rectangular cross-section with the winding direction reversed after each layer by 90°. The installation for producing the fibrous structure of the material comprises a thermostated tank with a thermoplastic slurry provided with a slurry stirring mechanism, a thread pulling unit through a fibre forming slurry consisting of guide rollers, and a device for drawing and winding the fibres. The said device is displaceable relative to the thermostated tank and includes a housing fixed to the fixed shaft, to which the plates are pressed, the housing being rotatably mounted about the axis of the shaft and the plates being pivotally mounted by 90°.EFFECT: simplification of the method of producing a highly porous homogeneous structure of the silicon nitride uniform material.3 cl, 8 dwg
ethod for producing carbon nanofibers // 2634126
FIELD: nanotechnology.SUBSTANCE: at first the polymer is mixed with the catalyst and the solvent until a homogeneous solution is obtained. Carbon-chain polymers with side functional groups are used, and the catalyst is selected from the group consisting of organic or inorganic transition metal compounds. The amount of catalyst is 0.5-15.0% of the polymer weight. The resulting solution is then applied to a substrate made of materials with low heat resistance and the solvent is removed by drying. The formed polymer layer is irradiated one or more times by a powerful ion beam of nanosecond duration with a current density of 50-80 A/cm2.EFFECT: nanofibres on substrates with low heat resistance using inexpensive materials.3 cl, 2 dwg, 7 ex

Drawing machine for roving draft // 2631920
FIELD: textile, paper.SUBSTANCE: drawing machine for roving draft with drawing fields which are formed by inlet, middle and outlet roller pairs and by the subsequent sealing zone. Feed top rollers are connected to the outlet top rollers through a cage element, and a clamping element affects the cage element in the direction to the bottom feed rollers. According to the invention, the clamping element is a spring element which is provided with a longitudinally variable dimension. The element is installed movable and attached via its both ends in each case to the support areas.EFFECT: higher output.4 cl, 1 dwg
Polymeric materials // 2631823
FIELD: chemistry.SUBSTANCE: method includes: selecting of liquid composition, containing the additive and the carrier; bringing it into contact with the polymeric material; melt processing form the polymeric material. At that the liquid composition is dosed into the polymeric material, when it is melted. The carrier is selected from tri- or tetraethers of pentaerythritol. The ether is produced or can be prepared by pentaerythritol reaction with the carboxylic acid with the carbon chain length C12-C22. Downstream relative to the contact point of the liquid composition and the polymeric material, there is the spinning device for spinning the polymeric material to produce the fiber.EFFECT: prevention of the carrier decomposition, the pressure drop, the smoke emission in the extrusion die and degradation of the polymeric material properties after the additive introduction, the resulting fiber has increased tensile strength.17 cl, 1 dwg, 2 tbl, 14 ex
Polymer material with multimodal pore distribution by size // 2631796
FIELD: technological processes.SUBSTANCE: material is formed by applying a force to a thermoplastic composition comprising a continuous phase comprising first and second additives in the form of discrete domains dispersed in a continuous phase. The continuous phase comprises a matrix polymer in which a plurality of micropores having an average cross-sectional dimension of from about 0.5 to about 30 micrometers is formed on and/or around the first domains and in which a plurality of nanopores having an average A cross-sectional dimension of about 50 to about 500 nanometers. The matrix polymer has a glass transition temperature of 0°C or more.EFFECT: achieving a unique multimodal porous structure as a result of the use of specific types of inclusion additives and careful control over how such additives are dispersed in the polymer matrix.29 cl, 14 dwg, 1 tbl, 4 ex

Device for measured cutting of carbon fiber // 2631037
FIELD: machine engineering.SUBSTANCE: device for measured cutting of carbon fibre is proposed, comprising a carbon fibre cutting unit equipped with electric drive, a hopper-accumulator of measured carbon fibre provided with a filter and connected by transporting pipeline to the carbon fiber cutting unit, a cyclone-type industial vacuum cleaner in explosion-proof enclosure connected by air duct to the hopper-accumulator of the measured carbon fiber. The carbon fiber cutting unit is equipped with two guide rollers and pressure roller, and comprises a drive support shaft made of polyurethane with hardness of 80-85 units by Shore for moving the carbon fiber subjected to cutting and a pressure-exerting rotating combined cutting drum, which axis is perpendicular to movement direction of carbon fiber being cut. The pressure-exerting rotating combined cutting drum is made in the form of a double-layer cylinder arranged on rotation axis with bearings, which inner layer is made of metal with annular grooves on its outer surface 30-40 mm wide and 12-15 mm deep, and the outer annular layer is made of polyurethane with hardness of 80-85 units by Shore and 5-6 mm thick. The annular grooves of the inner metal layer are filled with polyurethane, longitudinal slots 0.2-0.5 mm wide are made in outer annular layer over its entire depth, in which metal plate knives are placed with tension. Depending on specified length of carbon fiber being cut, the number of metal plate knives is from 48 when the cut length is from 10 mm, and up to 240 when the cut length is 2 mm, and a cutter shaft is equipped with cylindrical covers to secure the outer annular layer of polyurethane with metal plate knives arranged therein. The carbon fiber cutting unit is provided with a slot located directly in the area of carbon fiber cutting for taking cut carbon fiber into hopper-accumulator via transporting pipeline under action of exhaust air flow of the cyclone-type industrial vacuum cleaner in explosion-proof enclosure. The outer diameter of the combined cutting shaft along cutting edges of the metal plate knives is 152, 8 mm.EFFECT: development of the device for cutting carbon fiber, which engineering result is increased service life due to reduced wear of utilised knives, enlarged range of carbon fiber lengths under cutting, elimination of process difficulties when replacing the cutting blades while changing the range of length of carbon fiber under cutting, and provision of air-tightness when working with carbon fiber under cutting and measuring.2 cl, 3 dwg

ethod for trib-2mut recombinant elastromerial domain, production, gene-engineering pgdtrib2mut construction, determining trib-2mut biosynthesis in e.coli cells, e.coli m15/pgdtrib2mut producing strain and method for polymer material obtaining based on this protein // 2631004
FIELD: biotechnology.SUBSTANCE: based on the minimal recombinant elastomeric motif (tribolin-1, Trib-1mut) insect resilinTribolium castaneum (tribolin-2, TRib-2mut), a protein structure is obtained recombinantly, which is used in aggregation methods to form the basis of a biomatrix network.EFFECT: invention allows to obtain polymeric frame biomaterial for tissue engineering.5 cl, 2 dwg, 2 tbl, 4 ex
ethodology of initiation of pore formation // 2630792
FIELD: technological processes.SUBSTANCE: invention provides a technique (method) for initiating the formation of pores in a polymeric material that contains a thermoplastic composition. The thermoplastic composition contains microinclusions and nanoinclusions, dispersed in a continuous phase, which includes a matrix polymer. To initiate pore formation, the polymeric material is subjected to mechanical stretching (for example, bending, stretching, twisting, etc.) to impart energy to the continuous phase interface and inclusion additives, which enables separation of the inclusion additives from the interface to create a porous network. The material is also pulled in a solid state in the sense that it is maintained at a temperature below the melting point of the matrix polymer.EFFECT: xxxxxxx.26 cl, 13 dwg, 17 tbl, 21 ex
Processing method of composite materials fibered reinforced fillers // 2630515
FIELD: chemistry.SUBSTANCE: surface treatment of the fibred reinforced fillers is carried out with the solution of phenol-formaldehyde resin of resole type and non-ionic surfactant in isopropanol with slow stirring in the vacuum reactor. Further drying under the vacuum is carried out until the isopropanol is completely removed.EFFECT: processing quality improvement.2 cl
ethod for hydrocellulose bundle production // 2629173
FIELD: chemistry.SUBSTANCE: method for hydratocellulose bundle production, characterized by dilution of sulfite or sulfate cellulose with cellulose mass fraction αof at least 94% and polymerization degree of 800-900 in a previously prepared concentrated phosphoric acid, represented by an orthophosphoric acid mixture containing 14-15 wt % of pyrophosphoric acid. The prepared concentrated phosphoric acid is fed into the sealed reactor capacity, heated to a temperature of 40-45°C at stirring with the activator speed rotation of the 1-5 rpm for 30-40 min and without changing the rotator speed, the cellulose crushed to fluff is loaded for 15 minutes, then stirring is continued at a speed of 40-50 rpm during 20-25 minutes at a temperature of 40°C till the stage of loose cellulose suspension formation at simultaneous evacuation of the sealed reactor capacity at a residual pressure of 0.01 MPa, the resulting cellulose suspension is cooled for 60-70 minutes to a temperature of minus 10 to minus 12°C with liquid nitrogen feeding into the reactor jacket, as a cooling agent, with cellulose suspension transfer to the gel-like state of spinning solution with a viscosity of 10.000-15.000 Pa⋅s, then the resulting highly viscous gel-like spinning solution is fed to the extrusion unit, heated to a temperature of 25-35°C and supplied with a gear pump in a volume of 10 cm of high-viscosity gel-like spinning solution of cellulose for 1 pump revolution, and fed for filtration into a flat filter in the form of a three-layer stainless steel grid of, then a high-viscosity gel-like spinning solution of cellulose with phosphoric acid mass fraction (H3PO4+H4P2O7) of 73-74% in terms of P2O5, cellulose mass fraction of 17.0-17.2%, with spinning solution viscosity of 1000-1500 Pa⋅S at a temperature of 25-35°C is extruded through a spinneret with 1180 holes with a diameter of 60 mcm through an air gap of 1 to 20 mm into the coagulation zone of the precipitation bath for hydrocellulose bundle formation, filled with acetone as a coagulant, containing 10-12 wt % of phosphoric acid, at the precipitation bath coagulant temperature of 15-25°C, and a hydrocellulose bundle is formed at a forming speed of 75-80 m/min and extractive coefficient of 2-10 with freshly formed fiber transfer to the conveying rollers. Diameter of a filament of the initial hydrocellulose fiber is 8.5 to 15 mcm at a linear density of 0.13-0.17 tex, then a unidirectional bundle of the obtained hydrated cellulose fiber is impregnated with an aqueous solution of ammonium chloride with NP4Cl concentration in an amount of 150-200 g/l, containing urea with concentration (NH2)2CO in an amount of 10-30 g/l, or an aqueous solution of ammonium sulfate with (NH4)2SO4 concentration in an amount of 250-300 g/l, containing urea with (NH2)2CO concentration in an amount of 20-40 g/l, as a flame retardant, drying of the impregnated bundle of initial hydrocellulose fiber is carried out at a temperature of 120-140°C for 30-60 minutes.EFFECT: as a result, carbon fiber at the maximum carbon content with a given specific electrical resistance can be obtained from a hydrocellulose bundle with the specified properties, with high strength tensile properties of both the elementary carbon fiber and its bundle as a whole.2 cl, 6 ex
ethod of stabilization of lignin fiber for the purpose of following conversion to carbon fiber // 2628959
FIELD: chemistry.SUBSTANCE: method of production of stabilized lignin fiber from alkaline lignin of softwood by heat treatment in the absence of an oxidizer is described.EFFECT: stabilized lignin fiber can be further processed to produce a carbon fiber.14 cl

anufacture method of spun nanothin mineral fibre and equipment for its manufacture // 2628856
FIELD: nanotechnology.SUBSTANCE: on the water-cooled combustion chamber, lined inside by refractory ceramics, set one nozzle unit in order to increase the pressure in it (respectively the energy source flow rate) to allow the primary mineral fibre blowing upto the nanoscale with the fixed relative to each other the upper and the lower parts (which eliminates burning out of the gaskets between the nozzle unit and the flange of the combustion chamber), with the roller drawing mechanism, having the adjustable rotation speed and with clamping strip, mounted with the ability to adjust its clamping height and fibre wire slot width for the primary mineral fibre accurate hit to the stoichiometric cone beginning, with step-by-step laying of primary mineral fibres through the step - 1.25mm on the manifold valve to increase the fibre productivity.EFFECT: nanothin fibre production.2 cl, 4 dwg

Textile type texturized nonwoven fabric, containing paper forming filament, calender roll and material manufacturing method // 2628381
FIELD: textile, paper.SUBSTANCE: calender roll is used to produce the texturized nonwoven material, containing the paper-forming filament. The calender roll includes a protruding relief, that includes: a base element, having the ring shape, at that the ring defines a top relative to the central part of the ring, defining the recess and the grinded surrounding area, at that the ring containing at least one radial channel, providing the recess communication with the grinded surrounding area in such a way to determine the discrete calendering surface; repeating of the specified base element along a plurality of rows and columns, substantially along the entire peripheral surface of the calender roll, at that the repeating is being regular, with the exception of a plurality of substantially longitudinally oriented parts and transversely oriented parts, at that the mentioned parts have limited size with respect to the size of the calender roll and are optionally distributed so as to define a plurality of the optionally distributed longitudinal and transverse lines in the texturized nonwoven material, containing the paper forming filament, forming a visually textile type texture.EFFECT: creation of the texturized nonwoven material, containing the paper forming filament, having the appearance of the textile type material with high quality, improved aesthetic characteristics.16 cl, 13 dwg

Casing for draw frame // 2626807
FIELD: textile, paper.SUBSTANCE: casing for a draw frame comprises a sound-insulating enclosure in the form of a hinged lid mounted on the vibro-active machine units; the sound-insulating enclosure is fixed to the head part of the machine, comprising combed strips, and vibration-sound-absorbing layers are fixed onto the inner enclosure surface. The thickness of the vibration-absorbing layer is 2-4 times the thickness of the lid material. The casing elements are mounted onto the machine by means of vibration-insulating rubber gaskets, the total rigidity of which is lower than the lid rigidity. According to the invention, the sound-absorbing element of the sound-insulating enclosure comprises a smooth surface and a perforated surface, between which there are two layers: a sound-reflecting layer adjacent to the rigid wall and a sound-absorbing layer adjacent to the perforated wall. The layer of the sound-reflecting material is made of the complex profile, in the form of evenly distributed hollow tetrahedrons allowing to reflect sound waves falling in all directions, and the perforated wall has the following perforation parameters: the hole diameter - 3÷7 mm, the perforation percentage - 10÷15%. As per shape, the holes can be made as holes having round, triangular, square, rectangular, or diamond profile. In case of non-circular holes, the maximum diameter of a circle inscribed in a polygon should be considered as the nominal diameter; basalt-based mineral wool with glass-wool lining is used as a sound-absorbing material. Also the sound-absorbing element can be made in the form of five layers, two of which, adjacent to the walls, are sound-absorbing layers of materials of different density, and three central layers are combined. The axial layer is made sound-absorbing, and two symmetrically located adjacent layers are made of a sound-reflecting material of a complex profile, consisting of uniformly distributed hollow tetrahedra with similar parameters.EFFECT: increased noise reduction efficiency.2 cl, 3 dwg
Kochetov casing for textile machine spindles // 2625427
FIELD: textile, paper.SUBSTANCE: casing for spindles of a textile machine contains an enclosure, installed on the spindle rail of the machine at the level of its spindles along their row, and vibration- and sound-absorbing layers fixed on its inner surface. The fence is made of the upper and lower parts, each of which consists of a body made of sheet angle sections with an angle of 90° at the apex, rigidly fixed to the spindle rail in its upper and lower parts, and a vertically disposed removable cover. The thickness of the vibration-absorbing layer, placed on plates, is 2-4 times the thickness of the cover and body plates. The casing elements are mounted on the machine by means of rubber vibration isolators. The overall rigidity of them is lower than the rigidity of the vibration-isolating suspension of the spindle. An elastic sheet vibration-absorbing material with internal loss ratio of not less than 0.2, or a composite material or plasticate can be used as a vibration-absorbing material. The sound-absorbing element of the enclosure contains smooth and perforated surfaces, between which there are two layers: a sound-reflecting layer adjacent to the rigid wall, and a sound-absorbing layer adjacent to the perforated wall. The sound-reflecting layer material includes of uniformly distributed hollow tetrahedra allowing to reflect the sound waves from all directions, and the perforated wall has the following perforation parameters: the hole diameter is 3-7 mm, the percentage of the perforation is 10-15%. Holes can be of round, triangular, square, rectangular or diamond shape. In case of unround holes the nominal diameter is regarded as the maximum diameter of the circumference, inscribed in a polygon. The sound-absorbing material is basalt-based mineral wool. The surface of sound fiber absorbers is treated with air-permeable porous paints or covered with air-permeable fabrics or nonwoven materials. According to the invention, between the sound-absorbing layer and the sound-reflecting layer material adjacent to it, there is an element of resonant type, made in the form of a rigid resonance plate with resonant holes that act as the neck of Helmholtz resonators. The volume functions of the Helmholtz resonator are performed by the layer of sound-reflecting material consisting of uniformly distributed hollow tetrahedra that allow to reflect sound waves from all directions.EFFECT: better noise reduction.3 dwg
ethod of manufacture of lignin-containing prediminary fiber, and also of carbon fibers // 2625306
FIELD: chemistry.SUBSTANCE: invention relates to a process for the production of lignin-containing precursor fibers for production of carbon fibers and/or activated carbon fibers, wherein: a) a solution containing at least one kind of lignin, as well as at least one fiber-forming polymer selected from the group consisting of cellulose or cellulose derivatives, at least one solvent selected from the group consisting of tertiary amine and/or ionic liquids b) transferred into a coagulation bath after extrusion of the solution spinning spinneret wet spinning method from a solution or spinning with an air gap, precipitating lignin precursor c) is stretched lignin precursor, at least 1.1 times, at a temperature of at least 60°C, wherein lignin thread is an economical starting material for the production of activated carbon and carbon fibers. The invention also relates to a method for manufacturing carbon fiber.EFFECT: increased productivity.15 cl, 4 ex
Kochetov acoustic emclosure for textile machine spindle // 2625082
FIELD: textile, paper.SUBSTANCE: acoustic enclosure for the spindles of a textile machine, containing a casing, installed on the machine spindle rail at the level of its spindles along their row, with vibration- and noise-absorbing layers fixed to its inner surface, and on the outside there are plates, cantilevered to it along the row of machine spindles, and a vibration absorbing layer on their lower surface. The spindles on the spindle rail of the machine are installed by means of elastic gaskets made of elastomer. The ratio of their total rigidity to the bending stiffness of the spindle rail lies in the optimum range of the following values: 0.01…0.1, and the thickness of the vibration-absorbing layer, placed on the plates, is 2…4 times the thickness of the plates. As the material of the vibration-absorbing layer, an elastic sheet vibration-absorbing material with a coefficient of internal losses of not less than 0.2 or a composite material or a plasticate are used. And as a sound-absorbing material of the casing, the elements of mineral wool, based on basalt, or mineral wool, or basalt wool, or fiber glass, covered with glass wool, or foamed polymer, polyethylene or polypropylene are used. The entire surface of the sound-absorbing material is covered with an acoustically transparent material. According to the invention, the spindle enclosure comprises of a sound-absorbing device made in the form of rigid and perforated walls, between which there is a multi-layer sound-absorbing element made in the form of five layers. Two of the layers, adjacent to the walls, are sound-absorbing layers of materials of different densities, and three central layers are combined. The axial layer is made sound-absorbing, and two symmetrically located and adjacent layers are made of a sound-reflecting material consisting of uniformly distributed hollow tetrahedra, allowing to reflect the sound waves falling in all directions. Each of the perforated walls has the following perforation parameters: the diameter of the holes is 3÷7 mm, the percentage of the perforation is 10%÷15%. Holes can be of round, triangular, square, rectangular or diamond shape. In case of unround holes the nominal diameter shall be maximum diameter of circumference inscribed in a polygon.EFFECT: better noise reduction.3 dwg

Improved fiber from polylactic acid // 2624303
FIELD: chemistry.SUBSTANCE: multicomponent fiber includes an inner component surrounded by a distinct component of the shell. The inner component is formed of polylactic acid, and shell component is formed by polymer additive, which increases toughener. Configuration of fiber, which comprises an inner portion/shell attaches many different useful properties to obtained fibers. Introduction of polymeric additive, which increases toughness of fiber, increases energy absorption capability stresses, arising during fiber drawing, which increases the overall rigidity and strength of the fibers. Moreover, the presence in the shell of additive component, which increases toughness, increases the binding with other fibers, e.g., during the formation of nonwoven webs. Another advantageous effect of the invention is that the configuration of the inner part/shell can be obtained from the thermoplastic composition, in which polylactic acid and a polymer additive, that increases the impact strength, are mixed with each other.EFFECT: receiving fibers from polylactic acid having good parameters elongation and high strength.20 cl, 8 dwg, 10 tbl, 55 ex

ethod for obtaining fibrous material containing oxide nanoparticles from thermoplast melt // 2624189
FIELD: chemistry.SUBSTANCE: method, like the prototype, involves forming a fibrous material by laminating a melt of a thermoplastic polymer by the action of a gas stream containing solid particles. Particles penetrate into the surface layer of the softened material, and particle consolidation occurs, when the material passes into a solid aggregate state. New is that the formation of fibers occurs under the influence of an unheated gas stream containing oxide nanoparticles or small droplets of liquid, in which such nanoparticles having an ambient temperature are dispersed. Gas ejection is provided, in which an additional flow of unheated gas is generated around the jet of molten polymer fed. The particle size is less than 100 nm.EFFECT: production of fibrous material with oxide nanoparticles fixed on its surface with one or, at least, two kinds, with minimal energy costs and simplification of the technological process.2 dwg

Structures of fusion protein in spider silk for binding to organic target // 2624036
FIELD: biotechnology.SUBSTANCE: invention relates to obtaining a polymeric protein structure capable of selective interaction with organic targets and can be used in medicine. The polymer protein structure contains a recombinant fusion protein, as a recurring structural element, which includes parts B, REP and CT.EFFECT: invention allows for producing a protein structure, which can be used as an affine medium and scaffold material for cells.41 cl, 34 dwg, 5 tbl, 28 ex
Wholly aromatic couple-type sopoliamide drawn fiber and its manufacturing method // 2623253
FIELD: chemistry.SUBSTANCE: wholly aromatic couple-type sopoliamide drawn fiber has a tensile modulus of 630 cN/dtex or more, a dry heat creep 2.0×10-4 % or less after 10 hours at 80°C. Hot-stretch fiber is at high voltage and at a temperature in certain ranges of para-substituted aromatic sopoliamide fiber type.EFFECT: creation of a wholly aromatic couple-type sopoliamide fiber having excellent tensile modulus.8 cl, 2 tbl, 10 ex
Porous polyolefin fibers // 2622431
FIELD: chemistry.SUBSTANCE: polyolefin fiber is formed from a thermoplastic composition comprising a continuous phase which contains a polyolefin matrix polymer and an nanoinclusion additive. The nanoinclusion additive is dispersed in the continuous phase as discrete nanoscale phase domains. When pulled, the nanoscale phase domains are able to interact with the matrix in a unique way creating a network of nanopores.EFFECT: technique of porous structure creation in polyolefin fibers to provide a reduced density.41 cl, 14 dwg, 5 tbl, 7 ex

Production process of composite fiber based on hydrolysis lignin with polyacrylonitril // 2621758
FIELD: technological processes.SUBSTANCE: invention relates to the production of sorbents having a well-developed microporous structure, controlled pore size and strength characteristics sufficient for use as sorbents made from activated carbon fibers obtained from polyacrylonitrile with the highest content of hydrolytic lignin. A method for producing a composite fiber based on hydrolytic lignin with polyacrylonitrile obtained by wet spinning with forcing-through the spinneret holes of mixtures of hydrolytic lignin and polyacrylonitrile solutions in dimethylsulfoxide in which the amount of hydrolysing lignin is from 70 to 80 wt % is fed into a precipitation bath with distilled water for coagulation of a polymer composite solution in the form of a fiber in which subsequent carbonization is carried out under nitrogen and activation by chemical reaction, and the composite fiber is subjected to an additional orientation stretching by 5-10% during the coagulation step in the precipitation bath, with the formation of micropores after carbonization with a monodisperse distribution of 3-18 mcm with channels having a regular combination of outer and closed pores of an elongated shape with expansion from the center of the fiber to its outer surface and anisotropic orientation along the entire length of the composite fiber.EFFECT: composite fiber with sorption properties is obtained.1 dwg, 1 tbl, 5 ex
Polysaccharide fibers for wound dressings // 2621114
FIELD: biotechnology.SUBSTANCE: fiber is a drawn fiber containing Alginate and psyllium seed shells polymers as the only structural components of fiber. Nntimicrobial silver saltmay can be included. The fiber can be produced by extrusion of alkali-solubilized psyllium seed shells aqueous mixture and sodium alginate into a bath of calcium chloride solution.EFFECT: creation of biologically produced materials with a unique combination of functional properties and environmentally friendly distinctive features.20 cl, 5 ex
Polylactide fibers // 2621104
FIELD: chemistry.SUBSTANCE: polylactide fibers are made from a polylactides mixture. One polylactide has a ratio of R-lactide and S-lactide units of 8:92 to 92:8. The second polylactide has a ratio of R-lactide and S-lactide units of ≥97:3 or ≤3:97. The ratio of R-lactide units and S-lactide units in the mixture is 7:93 to 25:75 or 75:25 to 93:7. The polylactide fiber comprises at least 5 J of polylactide crystallites per gram of polylactide resin in a fiber. The invention also relates in particular to shelters for plants in the form of a woven or nonwoven fabric comprising these polylactide fibers, as well as to subterranean formations treatment. Subterranean formations treatment involves treatment fluid introduction into the subterranean formation. The fluid comprises a liquid phase and a plurality of the said inventive polylactide fibers dispersed in a liquid phase.EFFECT: increased efficiency of fibers.17 cl, 1 tbl, 8 ex

Carbon nanotube fiber with a low specific resistivity // 2621102
FIELD: chemistry.SUBSTANCE: fibers are prepared by wet spinning, comprising the steps of feeding a spinning solution containing carbon nanotubes to a spinneret, spinning solution extruding through at least one spinning orifice in the spinneret to form the spun carbon nanotube fibers, spun carbon nanotube fibers coagulating in a coagulation medium to form coagulated carbon nanotube fibers, where the carbon nanotube fibers are drawn with a draw ratio greater than 1.0, and where the carbon nanotubes have a length of at least 0.5 microns.EFFECT: invention provides carbon nanotube fibers with a resistance below 120 microO⋅cm, high elasticity modulus.18 cl, 2 dwg, 1 tbl, 7 ex

ethod and device for manufacture of solid fibers or films, and use of the device for the method implementation // 2621101
FIELD: technological processes.SUBSTANCE: method is performed by solid material fibers or films manufacturing from a liquid material by extruding this liquid through one or more extrusion holes and curing the material in a receiving bath. The molded material between the extrusion holes and receiving bath is guided by a lateral gas flow. In this case, the gas flow is divided into a heated partial flow and a cooling partial flow. Moreover, the material, before it is introduced into the receiving bath, is brought into contact first with the heated partial flow, and then with the cooling partial flow.EFFECT: prevention of solid particles sedimentation and separation from the material, prevention of stickiness of the material before the receiving bath.29 cl, 8 dwg, 1 tbl, ex 4

Draft assembly for roving draft // 2620490
FIELD: textile, paper.SUBSTANCE: invention relates to a draft assembly for roving draft with drafting fields formed by input, middle and output pairs of rollers, and the subsequent sealing area, and upper feed rollers are connected to output upper rollers through cell, and a load spring, which is designed as a leaf spring affects the cell towards the lower feed rollers. The invention provides that the cell has the first guide and a receiver with an inner diameter which is slightly greater than the diameter of the upper output rollers pair axis on which the cell is suspended, and that the loading spring is at one end fixedly connected to the rotary handle, and is slidably connected to the cell containing feed upper rollers in the area of its opposite free end through intermediate link.EFFECT: improved device reliability.7 cl, 3 dwg

Fibers from renewable low density polyesters // 2620415
FIELD: chemistry.SUBSTANCE: fibers are obtained from a thermoplastic composition which comprises hard renewable polyester, has a porous structure and a low density. To obtain such a structure, a renewable polyester is mixed with a polymer additive that increases the impact strength, so that the additive can be dispersed as discrete physical domains in a continuous matrix of renewable polyester. Then, fibers are formed which is subjected to tension or stretching at a temperature below the glass transition temperature of the polyester, i.e. subjected to cold drawing. The deformation force and stress at elongation during stretching leads to disruption of adhesion in the renewable polyester matrixin the areas adjacent to the discrete domains. As a result a mesh structure is obtained of pores located near the discrete domains, which by their proximity may form bridges between the pore boundaries, acting as internal structural "hinges" that promote stabilization of the mesh structure and increase its ability to dissipate energy.EFFECT: obtaining of fibers from renewable polyester with low density and good mechanical properties.20 cl, 2 dwg, 8 tbl, 11 ex

ethod of moulded parts manufacturing // 2619968
FIELD: technological processes.SUBSTANCE: method and device for manufacturing of moulded parts from the base material, namely the pulp, proteins, polylactides or amylum or mixtures from these substances, which is mixed with a solvent to form the moulding solution, and then this solvent at least partially is to be removed from the mouling solution and the mouling solution is fed into the moulding device. According to the invention, the mouling solution is fed into a vertical cylindrical thin-layer evaporator and in a horizontal cylindrical thick-layer dissolver. The moulding solution is diluted in a thick-layer dissolver or at the subsequent unloading from it upto the viscosity required for moulding, achieving the original consistency. At that, the thin-layer evaporator and/or thick-layer dissolver is directly connected to each other through their product chamber.EFFECT: improved method.12 cl, 1 dwg

Fabric composition including elastic fibers // 2619647
FIELD: textile, paper.SUBSTANCE: provided product comprises a multi-directional fabric of the first reinforcing fiber tows extending in the first direction, and the second reinforcing fiber tows extending in the second direction. The filaments in the first fiber tows extend beyond the fabric borders, and are distributed. Strands are imbedded into resin.EFFECT: improved performance.19 cl, 13 dwg

ethod of preparing raw flax material layer for processing // 2619035
FIELD: agriculture.SUBSTANCE: in method of preparing raw flax material layer for processing, comprising the bidirectional carding 1 of the layer, levelling 4 the stalks by butt ends and thinning 2 the layer; after the bidirectional carding 1 of the layer, thinning 2 the layer, then the unidirectional carding 3 of the layer and levelling 4 the stalks by butt ends are carried out; wherein the cardings 1, 3 of the layer are carried out by carding elements which move together with the layer in the direction of its movement, and the unidirectional carding 3 is carried out toward the top of the stalks with overlapping the butt area of the layer carding.EFFECT: increasing the yield of long fibers due to improving the quality of raw flax material preparation before its mechanical processing on production process lines.1 dwg
Light high-strength waterproof composite material and method of its manufacture // 2618882
FIELD: chemistry.SUBSTANCE: invention relates to the field of lightweight high-strength and water-resistant composite materials (CM) based on organic fibrous fillers made of ultra-high molecular weight polyethylene (UHMWPE) and a polymer binder and can be used in structural elements in various fields of engineering: aviation, machinery and shipbuilding, chemical, defence, etc. A lightweight, high-strength, water-resistant composite material made of an organic fiber filler based on high-strength, high-modulus, multifilament polyethylene fibers whose surface has been pretreated is modified by an electric discharge in a working plasma gas environment containing a polymeric binder based on an epoxy resin with an amine hardener in which, as an organic filler It contains fabrics of various interlacing on the basis of fibers from ultrahigh, the surface of which has been pretreated - modified in an AC discharge at a frequency of 50 Hz, as an epoxy resin of a polymeric binder contains a mixture of epoxydian (A) and epoxyaliphatic (B) oligomers in the ratio A: B from 10:1.5 to 10:2.5, as the amine curative is a cycloaliphatic amine, and further comprises a polyamide resin, which is a reaction product of polyamines with vegetable oil acids, a mixture of oligoethercarbonates, a fluoropolymer urethane, a silane type nanomodifier with the ratio of components, wt. parts: the above-mentioned organic fiber filler is 150-600, the epoxy-diene oligomer (A) is 100, the epoxy-aliphatic oligomer (B) is 15-25, the silicone-type nanomodifier is 0.05-0.65, the mixture of oligoethercarbonate is 13-33, the urethane prepolymer - 3-12, cycloaliphatic amine - 12-30, the above-mentioned polyamide resin - 6-17. A method for manufacturing a light high-strength and water-resistant composite material is also described.EFFECT: light high-strength waterproof composite with improved physicomechanical properties and water resistance of CM with an ecological purity and technological simplicity of the process is obtained.7 cl, 3 dwg, 2 tbl

ultifunctional fabric // 2617356
FIELD: textiles, paper.SUBSTANCE: invention relates to the textile industry. The fabric is proposed, which comprises porous fibers. The porous fibers are formed from a thermoplastic composition comprising a continuous phase comprising the matrix polymer. The microinclusion additive and the nanoinclusion additive can also be dispersed in the continuous phase in the form of discrete domains, and in the composition a porous network is determined, which includes a plurality of nanopores with an average cross-sectional size of about 800 nanometers or less.EFFECT: invention enables to improve breathability, water permeability, heat insulation and flexibility of fabric.37 cl, 8 dwg, 5 tbl
 
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