Polymer composition for producing film materials and artificial leather

FIELD: chemistry.

SUBSTANCE: polymer composition for producing film materials and artificial leather contains a film-forming agent - suspended polyvinyl chloride, a phthalate plasticiser, a mixture of dioxane alcohols and high-boiling ethers thereof, chlorinated paraffin, a metal-containing stabiliser, a pigment, calcite filler, a lubricant - stearic acid and a surfactant. The pigment and calcite filler are in ratio 1:(10-20).

EFFECT: obtaining material from a polyvinyl chloride-based polymer composition with a white surface, while maintaining values of the rest of the properties at the same level.

2 tbl

 

The invention relates to polymeric compositions based on polyvinyl chloride to obtain a film materials and artificial leather.

The closest technical solution according to the essential features and the result achieved by the claimed invention is a Polymer composition to obtain a film materials and artificial leather" RF patent No. 2315070, IPC C08L 27/06, containing, in parts by weight:

Polyvinyl chloride suspension100
A mixture of plasticizers: di(2-ethylhexyl)-phthalate, the mixture
dioxane alcohols and their high-boiling ethers with number
hydroxyl groups 23-36% in the ratio of 1:(1,0-2,4)40-60
Chloroparaffin6-10
Complex stabilizer SCS-R171,0-2,0
Chalk65-80
Titanium dioxide4-10
Calcium carbonate crystal5-10
Stearic acid0,5-1,0
A byproduct of the production of dimethyldioxanes1,0-2,0

This polymer composition further comprises a metal-containing stabilizer, calcium, zinc complex stabilizer "Vegetab CZ-24" in the amount of 1.0 to 2.0 parts by weight of

The disadvantages of this composition should include insufficient whiteness of the surface of the material is 85-90%.

The objective of the invention is to provide polymeric compositions based on polyvinyl chloride suspension with increased whiteness of the surface of the material while maintaining the values of the other indicators on the same level.

The problem is solved due to the fact that the polymer composition to obtain a film materials and artificial leather, comprising a film-forming - polyvinyl chloride suspension, talaty plasticizer, a mixture of dioxane alcohols and their high-boiling esters, chloroparaffin, metal-containing stabilizer, a pigment, calcite filler, lubricant is stearic acid, a surfactant, contains a pigment and calcite filler in the ratio of 1:(10-20) in the following ratio of components, parts by weight:

Polyvinyl chloride suspension 100
Talaty plasticizer20-50

A mixture of dioxane alcohols and their high-boiling esters10-30
Chloroparaffin5-20
Metal-containing stabilizer1-4
Pigmentin the ratio of 1:(10-20)3-12
Calcite filler60-120
Stearic acid0,5-1,0
Surfactant0,5-2,5

The proposed composition includes the following components:

Film-forming:

Polyvinyl chloride suspension GOST 14332-78;

Talaty plasticizer:

Di(2-ethylhexyl)-phthalate, dibutyl phthalate, diallylphthalate-DAP-789, DAF-68 DAP-810 according to GOST 8728-88;

A mixture of dioxane alcohols and their high-boiling esters:

ADOS sweat 2493-003-13004744-93,

DIS TU 2493-001-13023971-02;

Chloroparaffin: THE 2493-379-05763441-2002;

Metal-containing stabilizer:

Complex stabilizer SCS-R17 on THE 6-09-4346-78,

Calcium stearate on THE 6-09-4104-87,

Stearate of zinc on TL6-09-17-257-87,

Calcium, zinc complex stabilizer "Vegetab CZ-24" beyond 2492-382-04872688-97;

Pigment:

Titanium dioxide GR-02 on THE 6-10-01650-92,

The titanium dioxide pigment according to GOST 9808-84,

Titanium dioxide "Kronos" and "Kronos" (Annex: specification sheet).

Physico-mechanical characteristics"Kronos 2190""Kronos 2310"
The brightness of white lacquer, %97,3of 98.2
The dispersion of grindometer, mcm6,86,8
PH7,87,9
Content rutile form %the 98.999,9

Titanium dioxide treated with a mixture of zirconium dioxide and aluminum oxide "Tronox 828" (Annex: specification sheet).

Physico-mechanical characteristics
The content of TiO2, %95
Density, g/cm34,1
The oil absorption, g/100 g18
PH7,5
The average particle size, microns0,19

Calcite filling:

Marble it is beyond 5716-001-99242323-2007

Physico-mechanical characteristicsRM-2The RM-40
The largest particle size (d, 98%), microns9-1344-50
The average particle size (d 50%), microns2-39-13
The residue on 45 µm sieve, %0,1-
The residue on the sieve of 200 μm %-<0,1
Mass fraction of calcium carbonate, %>97 >97
PH9-119-11
White, conditional unit>94>93
Bulk density, g/cm31,11,2
Refractive index1,61,6

Fine white marble high purity "Unicarb" brands "Unicarb 2-GU, 5-GU, 5-UR, 15-GU" (Annex: specification sheet) with the following physical-mechanical characteristics:

The chemical composition
CaCO3, %>98
Fe2O3, %<0,15
The residue insoluble in HCl, %<2.0
Density, g/cm32,7
Refractive index1,59
The Mohs hardness3
The average size of the p particles, mcm2,5-27
White, %94,5 to 96.5
PH9
The oil absorption, g/100 g13-19

Micronized calcite filler MK-10 and MK-40 on THE 5716-003-407056684-2001

Physico-mechanical characteristicsMK-10MK-40
Chemical composition, %CaCO3not less than9797
MgO, not more than0,150,15
SiO2not more than0,150,15
Fe2O3+Al2O3not more than0,120,12
Mass fraction of volatile substances,%, no more0,20,2
PH8-98-9
The number of particles larger than 5 microns7025
Whiteness index, conventional units9494

Chalk GOST 12085-88.

Calcium carbonate crystal type K and MK-1 on THE other 2321-006-12588040-99.

Calcium carbonate, Nights 5 (Annex: specification sheet)

Physico-mechanical characteristics:
Chemical composition, %CaCO399,07
MgO-Fe2O30,43-0,03
SiO2-Al2O30,02-0,03
The Mohs hardness3
The average particle size d (0,50)5,00-5,73
White (2470 contact to JSO), %99,03
The pH (contact to JSO 787/9)9
The oil absorption (contact to JSO 785/5), %25

Lubricant:

Stearic acid according to GOST 94-19-78.

Surfactant:

A byproduct of the production of dimethyldioxanes - flotation - oxal on THE 2452-029-05966801-94;

Ethoxylated alkyl phenol with the number of hydroxyl groups of 7 or 10 (OP 7, OP-10) according to GOST 8433-81.

As a basis, depending on the destination of the material using woven and non-woven fabric according to the appropriate technical documentation.

The composition was prepared as follows.

Separately at a temperature of 18-22°C mix talaty plasticizer, a mixture of dioxane alcohols and their high-boiling esters, chloroparaffin, surfactant, metal-containing stabilizer, a pigment and calcite filler in the ratio of 1:(10-20) for 30-40 minutes and grind before dispersion of 40-50 microns. The ratio of pigment and calcite filler selected empirically.

At the same time in the mixer, pre-heated to 40-60°C, the resulting dispersion is mixed with polyvinyl chloride suspension and lubricant for 25-30 minutes until set temperature weight 90-100°C. After which the mixture is cooled with stirring to 30-40°C for 10-15 minutes. Next, the polymer HDMI is of the extruder, where plasticity mixture components at a temperature of 140-150°C.

Polymer composition in the form of tow is fed into the gap of the three-roll backing machine, where the molding and calibrated coating of polyvinylchloride composition during the transition from the shaft to the shaft. Temperature shafts 150-190°C.

Textile base with roll installed on the unwinding device, skirting the number of filling rolls, served in the gap between the melting and rubber rollers, where it is duplicated with a film of the polymeric composition.

Next, the surface of the semi-finished finished mirror or tinyline shaft. To achieve a more decorative effect on the finished products can be applied to the printed image. Table 1 shows examples of the composition of the polymeric composition, and table 2 - properties of the composition and is made of material of this composition in comparison with the prototype.

The white material on the prototype determined according to GOST 16873.

As seen from table 2, the proposed polymer composition based on polyvinyl chloride suspension is a white 95-97% while maintaining the other indicators on the same level.

Table 1
The name component is s On the proto-
the type of parts
For examples of parts
1234567891011
Film-forming:
Polyvinyl chloride suspension100100100100100100100100100100100100
Plasticizers:
Talaty plasticizer-2025313540424546484950
A mixture of dioxane alcohols and their high-boiling esters-1025262728292424252530
Chloroparaffin6-10561012 15161819161720
A mixture of plasticizers: di(2-ethylhexyl)-phthalate, a mixture of dioxane high-boiling alcohols and their esters with the number of hydroxyl groups 23-36% in the ratio of 1:(1,0-2,4)40-60-----------
Metal-containing stabilizer:1-211222133444
Pigment:
Titanium dioxide4-10-----------
Calcite filling:
Chalk65-80-----------
Calcium carbonate crystal5-10-----------
Pigment (titanium dioxide pigment, titanium dioxide GR-02, "Kronos", "Kronos"processed mixture of zirconium dioxide and aluminum oxide "Tronox 828") and-3410656797,56,2512
Calcite filler (fine white marble high purity "Unicarb", micronized calcite filler MK, chalk, calcium carbonate, crystalline, calcium carbonate, Nights 5) in the ratio of 1:(10-20)-60601009075 66989998,75100120
Lubricant:
Stearic acid0,5-1,00,50,50,51,01,00,51,01,01,01,01,0
Surfactant:
A byproduct of the production of dimethyldioxanes-flotation-oxal,1,0-2,00,51,01,52,02,02,5
ethoxylated alkyl phenol with the number of hydroxyl groups of 7 or 10 (OP 7, OP-10)-0,51,01,52,02,5

Table 2
IndicesPrototypeExamples
123 4567891011
Properties of polymer compositions
The melt flow index, g/10 min GOST 1164540-535050525251495049474752
Thermostability at 185°C, min, GOST 14041140-150146145148150150 149150149148150146
Hardness shore a, used, GOST 263-7545-504950474646474848484748
The material properties of the polymeric composition
Thermocline, kPa, GOST 1731825-302526252625262725 252525
The surface gloss, %, GOST 8468-10991010999109109
Curl on the basis of, mm, GOST 5202000000000000
The bond strength of the film coating to the base, kN/m, GOST 273141,9-2,11,92,02,02,12,12,02,02,02,02,02,0
White, %, GOST 1687385-909597969797969797979695

Polymer composition to obtain a film materials and artificial leather, comprising a film-forming - polyvinyl chloride suspension, talaty plasticizer, a mixture of dioxane alcohols and their high-boiling esters, chloroparaffin, metal-containing stabilizer, a pigment, calcite filler, lubricant is stearic acid, a surfactant, characterized in that it contains a pigment and calcite filler in a ratio of 1:(10-20) in the following ratio of components, parts by weight:

Polyvinyl chloride suspension100
Talaty plasticizer20-50
A mixture of dioxane alcohols and their high-boiling esters10-30
Chloroparaffin5-20
Metal-containing stabilizer1-4
Pigment3-12
Calcite filler60-120
Stearic acid0,5-1,0
Surfactant0,5-2,5



 

Same patents:

FIELD: chemistry.

SUBSTANCE: plasticised polymer composition for film material contains polyvinyl chloride, dioctyl phthalate, epoxidised plant oil, calcium stearate, zinc stearate, and 4-methyl-2,6-isobornylphenol as a stabiliser-oxidant.

EFFECT: high thermal stability of the polymer composition while maintaining high breaking strength and elongation at rupture.

1 tbl

FIELD: chemistry.

SUBSTANCE: polyvinyl chloride composition plasticiser is a product of reaction of dioxane alcohol in a mixture with ethers and formals thereof with toluene diisocyanate. Disclosed also is a polymer composition containing polyvinyl chloride and said plasticiser.

EFFECT: modification of dioxane alcohols of the plasticiser prevents its dewetting and, as a result, reduces weight loss of the plasticiser, and enables to improve plasticising properties of the composition, raise flash point, thermal stability and resistance to thermal-oxidative degradation.

4 cl, 4 tbl

FIELD: chemistry.

SUBSTANCE: rigid polyvinyl chloride (PVC) based wood-polymer composition contains a complex stabiliser, an impact strength modifier, wood flour and silicon sol as a binding agent, with the following ratio of components, pts.wt: polyvinyl chloride 100, impact strength modifier 4.8-9, complex heat stabiliser 4.5-7, wood flour 10-160, silicon sol 2-4.

EFFECT: obtaining highly filled rigid PVC compositions based on dispersed wood flour while preserving processing and operational characteristics.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to chlorionated thermoplastic materials with mineral filler, having compatibility between said filler and chlorinated thermoplastic resin. The mineral filler compatibility agent in form of calcium when producing chlorinated thermoplastic material contains a comb-shaped polymer which contains at least one polyalkylene oxide group which is grafted onto at least one ethylenically unsaturated anionic monomer. The comb-shaped polymer contains at least one anionic monomer with ethylenic unsaturation and a monocarboxyl or phosphoric group or mixtures thereof, at least one non-ionic monomer containing at least one monomer of formula (I): , where m and p denote the number of alkylene oxide groups, which is less than or equal to 150, n denotes the number of ethylene oxide groups, which is less than or equal to 150, q denotes a whole number equal to or less than 1, where 5≤(m+n+p)q≤150, R1 denotes hydrogen or a methyl or ethyl radical, R2 denotes hydrogen or a methyl or ethyl radical, R denotes a radical which contains an unsaturated polymerisable group, preferably associated with a group of vinyl compounds, or a group of acrylic, methacrylic, maleic esters, or a group of allyl or vinyl ethers, which are substituted or unsubstituted, R' denotes hydrogen or a hydrocarbon radical with 1-40 carbon atoms or a ionic or ionisable group, such as carboxyl, and preferably denotes a hydrocarbon radical with 1-12 carbon atoms. The invention also relates to chlorinated thermoplastic materials containing at least one chlorinated thermoplastic resin, calcium carbonate and at least one compatibility agent.

EFFECT: high impact strength.

22 cl, 4 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a stabilising system for halogen-containing polymers, as well as a composition and article made from the composition which contains the stabilising system. The stabilising system for halogen-containing polymers contains component (A) in form of a calcium monocarbonate hydroxodialuminate of formula (A) CamAl2(OH)6+2(m-1)CO3*nH2O (A), where m varies from 3.8 to 4.2 and n varies from 0 to 3, and component (B) in form of catena-2,2',2"-nitrile trisethanol perchlorate lithium or sodium coordination polymer (B1), having a monomer link of formula , where Mt denotes Li or Na, An denotes OCIO3, q equals 1, and can additionally contain perchlorate of quaternary or tertiary ammonium or phosphonium (B2).

EFFECT: high heat-stabilising action.

17 cl, 19 tbl

FIELD: construction.

SUBSTANCE: composition contains a film binder - a suspension polyvinyl chloride, a plasticiser - diphenyl octyl phosphate, a stabiliser - barium, -cadmium, -zinc-containing complex brand Vigostab BKC, fireproofing additives - magnesium hydroxide brand "Ecopyrene 5C", antimony trioxide, micromarble fractionated in the ratio of (4.66÷6):1:1 accordingly, pigment is titanium dioxide and optical bleacher.

EFFECT: composition has high strength properties, does not sustain combustion, does not produce drops in process of burning, has low weight, high extent of whiteness, has water resistance to several meters of water column.

4 tbl, 9 ex

FIELD: chemistry.

SUBSTANCE: polyvinyl chloride-based wood-polymer composition for profiled-trim moulding articles contains polyvinyl chloride, wood flour, a complex stabiliser, an acrylic modifier, polyethylene wax and a metal-containing lubricant. The metal-containing lubricant used in the composition is obtained by reacting higher monocarboxylic acids with glycerin at 130-230°C at molar ratio 1:(1-2) in the presence of oxides of divalent metals Ca, Zn, Mg or their two-component mixtures in weight ratio 0.25-1.0:0.5-1.0 in amount of 0.5-2.0 wt % of the overall reaction mass, where the higher monocarboxylic acids used are VIK, oleic and stearic acid. The composition also uses polyethylene wax with melting point not higher than 100°C. The complex stabiliser used is selected from: BAEROPAN R 9003 (produced by Baerlocher GmbH, Germany) or Naftosafe PEK 922 B (produced by Chemson, Austria). The acrylic modifier used is impact-resistant modifiers selected from: MB-87, DURASTRENGTH D320, DURASTRENGTH D300S (produced by Arkema, France), Metablen P-5500S (produced by Dangdong), Paraloid BTA 736H-S OS (produced by Rohm & Haac), Kane ACE F50 (produced by Kalek), Lariks on TU 2216-235-05757533-2000.

EFFECT: high quality of profiled-trim moulding articles, which is expressed by improved operational and technological parameters, specifically melt flow index, thermal stability, impact viscosity, low water absorption and environmental safety of the composition.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a processing additive for extrusion of polyolefins or thermoplastic resins. The composition contains at least one fluoropolymer (A), at least one inter-phase agent (B) and at least one stabiliser (C). The invention also relates to an extrusion method, which involves: (i) bringing the composition in solid state, as described above in any of claims 1-13, into contact with polyolefin or thermoplastic resin and (ii) extrusion of the mixture obtained at step (i) to obtain a film, pipe, relief or hollow body.

EFFECT: additive reduces or eliminates extrusion defects without reducing the yellowing index of the resin subjected to extrusion.

14 cl, 1 dwg, 1 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: wood-polymer composition for articles contains polyvinyl chloride, wood flour, calcium-zinc complex stabiliser and the composition can additionally contain a metal-containing lubricant obtained via reaction of higher monocarboxylic acids with glycerine at 130-230°C in molar ratio 1:(1-2) in the presence of oxides of divalent metals Ca, Zn, Mg or other two-component mixtures in weight ratio 0.25-1.0:0.5-1.0 and polyethylene wax.

EFFECT: high quality of ready articles owing to improved technological parameters of the compositions, thermal stability, melt fluidity, water absorption and environmental safety.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: stable plasticised composition contains C4-C30-alkyl-pyrrolidone with a straight, branched or cyclic alkyl radical in amount ranging from more than 10 phr to 400 phr (parts per 100 parts of PVC), sufficient for plasticising said PVC to a flexible state. The PVC product is characterised by Shore hardness (scale A) less than 100 and is in form of calendered sheet, plastisol, foam, dispersion, film, siding, tube or pipe.

EFFECT: ensuring prolonged plastification of PVC in order to endow the PVC-based composition with flexibility, ductility or lower melting point for making articles.

19 cl, 3 ex, 4 tbl

FIELD: chemistry.

SUBSTANCE: composition contains the following (pts.wt): intercalated graphite 40 - 60, curing agent 30-45, aluminium hydroxide 130 - 150, chlorinated paraffin wax 115-130, antimony trioxide 20-35, ammonium polyphosphate 130-180, kaolin wool 30-45, perchloroethylene 25-40, epoxy resin 100.

EFFECT: composition improves fire-proofing properties and reduces labour input in application thereof.

1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: additive includes an organic binder, a structure-forming agent, sodium hydroxide and water. The organic binder is oil and fat wastes selected from: a fatty composition or gossypol resin or floatation tar or class B industrial oleic acid. The structure-forming agent used is cellulose fibre. Components are in the following ratio in wt %: cellulose fibre - 80-85, oil and fat wastes - 10-15, sodium hydroxide - 0.4-0.8, water - the balance. The stabilising additive is obtained by mixing an emulsion prepared in advance by mixing the oil and fat wastes with hot water and sodium hydroxide, and cellulose fibre followed by pressing, drying and granulation.

EFFECT: obtained additive meets all the necessary quality requirements and is obtained from ecologically clean and cheap material.

2 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: composition contains novolac-type phenol-formaldehyde resin, urotropin, azobisisobutyronitrile gasifier, processed chrysotile asbestos, butadiene-nitrile rubber, calcium stearate or zinc stearate, dust-like ground quartz with particle size of not more than 0.25 mm which is thermally treated at (700-950)°C, antioxidant naphtham-2 or agidol-2. The method of producing the composition involves heating and plasticising the butadiene-nitrile rubber together with the antioxidant and calcium stearate or zinc stearate. The obtained mixture is then mixed with phenol-formaldehyde resin and powdered filler materials are then added to the obtained composition. Further, the obtained mixture is cooled to temperature (30-50)°C and weighed portions of urotropin and azobisisobutyronitrile are then added to said mixture. The obtained composition is deposited on the article by loading a ground portion into the confined volume of a mould, heated step-by-step to temperature 170°C and held at that temperature, resulting in solidification of the composition, thereby turning into a coating.

EFFECT: high oxidation resistance and stabilisation of process and operational properties of the semi-finished product during manufacture, storage and processing.

3 cl, 6 ex, 2 tbl

Urethane putty // 2451703

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry, particularly quick-setting polyurethane compositions and can be used in construction to seal joints between enclosing structures of buildings and control joints of concrete floors, slits and cracks. The urethane putty contains a component A as the basic paste, which contains a hydroxyl-containing polyether with molecular weight 3600, silicon dioxide, diethylene glycol, a cationic catalyst, a plasticiser containing dibutylphthalate and chloroparaffin, filler, and a component B as the putty hardener, which is obtained by reacting the hydroxyl-containing polyether - laprol 3603-2-12 with toluylene diisocyanate and further contains a stabiliser, wherein before application, components A and B are mixed with each other in ratio 9:1 pts.wt, respectively.

EFFECT: broader processing capability of urethane putty in construction of buildings.

4 cl

FIELD: chemistry.

SUBSTANCE: invention relates to a stabilising system for halogen-containing polymers, as well as a composition and article made from the composition which contains the stabilising system. The stabilising system for halogen-containing polymers contains component (A) in form of a calcium monocarbonate hydroxodialuminate of formula (A) CamAl2(OH)6+2(m-1)CO3*nH2O (A), where m varies from 3.8 to 4.2 and n varies from 0 to 3, and component (B) in form of catena-2,2',2"-nitrile trisethanol perchlorate lithium or sodium coordination polymer (B1), having a monomer link of formula , where Mt denotes Li or Na, An denotes OCIO3, q equals 1, and can additionally contain perchlorate of quaternary or tertiary ammonium or phosphonium (B2).

EFFECT: high heat-stabilising action.

17 cl, 19 tbl

FIELD: chemistry.

SUBSTANCE: heat-resistant electrically insulating composition contains polydimethyl vinyl siloxane rubber, polyorganohydride siloxane, silica filler, a curing catalyst based on platinum, and 1,2-dihydroxyanthraquinone. The composition can additionally contain different process additives.

EFFECT: obtaining a heat-resistant electrically insulating composition, which provides protection from reverse current of components of semiconductor power devices at high temperature.

5 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: curable rubber mixture contains natural or synthetic rubber, vulcanising substances, vulcanisation accelerators and activators, filler materials and other additives, as well as 0.5-2.0 pts.wt per 100 pts.wt composite antiageing agent rubber consisting of a powdered carrier - colloidal silica and a liquid alloy of antiageing agents obtained at 70-90°C, containing the following in pts.wt: 50-55 N-isopropyl-N-phenyl-n-phenylenediamine, 20-22 ε-caprolactam, 5-6 stearic acid, 20-22 boric acid in form of a melt obtained beforehand in ε-caprolactam at temperature 110-115°C. The alloy and the powdered carrier are in the following ratio in pts.wt: alloy of antiageing agents 55-60, colloidal silica 40-45.

EFFECT: invention increases thermal-oxidative resistance and ageing resistance in high humidity conditions.

6 tbl, 2 ex

FIELD: machine-building industry.

SUBSTANCE: compound contains (wt %): ε-caprolaktam - 97-98, metal sodium metal - 0.07, toluylene diisocyanate - 0.257 and a mixture of merkupral and dithizone at a ratio 10:1 - 0.29-0.98. Friction factor 0.08-0.12, wear 0.006-0.002, water absorption 0.20 % during 20 days.

EFFECT: improved physical and mechanical properties of compound.

1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: nanocomposite material contains polymer binder, filler and a nanoparticle fraction. The nanoparticle fraction contains multilayered carbon particles with a toroid shape with dimensions ranging from 15 to 150 nm, in which the ratio of the external diameter to the thickness of the toroid body is in the range of (10-3):1. The filler is selected from a group comprising glass, carbon and organic and boron fibre. The binder is selected from a group comprising epoxy resins, epoxy-novolak resins, epoxy-phenol resins, polyethers, polyimidazole or polyoxybenzimidazole. Use of the nanoparticle fraction in the nanocomposite material enables to achieve effective compaction and reinforcement near filler/binder interphase boundaries and increase average density, elasticity, hardness and strength thereof.

EFFECT: nanocomposite material can be used to make different components and articles for machine building and transport, including holders for tools for precision processing surfaces of components.

15 cl, 1 tbl, 9 ex

FIELD: chemistry.

SUBSTANCE: polyvinyl chloride composition for producing film materials contains suspended polyvinyl chloride, a mixture of plasticisers di-(2-ethylhexyl)phthalate, di-(2-ethylhexyl) sebacate, a complex metal-containing stabiliser - complex Ba-Zn stabiliser, filler - chalk, titanium dioxide, cellulose, lubricant - calcium stearate, pigments, polymer modifier - copolymer of vinyl chloride and vinyl acetate (VA-5) and a mixture of an oligomeric plasticiser based on a mixture of adipic or phthalic esters, n-butyl alcohol, 2-ethylhexanol and polypropylene glycol - component A with a surfactant which contains oxyethylated monoalkylphenol based on trimers of propylene - component B in ratio A:B equal to (11.5-18.23):1.

EFFECT: film material has low stickiness and hardness, high resistance to heat-and-light ageing while preserving physical and mechanical properties.

3 tbl

FIELD: medicine.

SUBSTANCE: chitosan is dissolved in an organic acid: 4-6% citric acid or 2-8% lactic acid in the relation of the ingredients chitosan: the organic acid 1:2-1:4 to prepare a forming solution. Chitosan has molecular weight 80-500 kDa. The forming solution is added with vitamin B1 in the amount of max. 0.5 wt %. The prepared forming solution is applied on a substrate in the amount of 0.2-0.25 ml/cm2 and kept to achieve a film structure. Said method is used to form the chitosan film coating having the thickness of 50-250 mcm and the breaking elongation of 42 to 470%.

EFFECT: group of inventions allows preparing high-elastic chitosan citrate or lactate films possessing bactericidal action.

2 cl, 1 tbl, 13 ex

Up!