Method for production of heat insulation multilayer combined polymer coating (versions)
FIELD: technological processes; chemistry.
SUBSTANCE: method consists in application of alternating layers of liquid-ceramic coating and layers of glass fiber cloth on surface that might have been heated previously. At that substrate may be first coated with liquid-ceramic coat from polymer composition that contains binder, mixture of hollow microspheres that differ in size and auxiliary target additives, then layer of glass fiber cloth is applied on still wet coating, and then again layers of liquid-ceramic coating, and if necessary - a layer of glass fiber cloth again. Coating may be produced by another version, when substrate is first coated with glass fiber cloth, and then liquid-ceramic coating, and later again a layer of glass fiber cloth, if required. Number of alternating layers is defined by necessary coefficient of heat conductivity.
EFFECT: high heat insulating properties of coating.
12 cl, 3 tbl, 2 ex
This invention relates to the chemical industry and can be used for insulating coatings on various surfaces to protect them from overheating, and at the same time to protect against corrosion from exposure to fire.
High-quality corrosion-resistant coating for a number of applications is of paramount importance. For example, when solving the problem of thermal insulation of pipelines and water supply is extremely important to ensure long-lasting protection of the pipe from external corrosion, because it is the main factor limiting their useful life. Just as important are such coatings and to protect any building structures made of metal, wood, plastic, from the harmful effects of sunlight, rainfall, etc. At the same time, the task of maintaining heat in residential and industrial construction, of course, is one of the primary, and the huge resources are being allocated. To solve both the first and second tasks of modern process thought offers a wide range of solutions. For insulating materials, actively currently offered in addition to well-known mineral and basalt Wat are various foamed polymeric materials, such as foamed polystyrene, polyethylene, polyure the Academy of Sciences, polypropylene, etc. as materials for corrosion protection offers a variety of painting materials (water dispersion, coating materials based on organic solvents), as well as protection of metal surfaces of metals, corrosion resistant, for example, electrolytic galvanizing. Materials which would have had the joint effect of protecting surfaces from corrosion and thus would contribute to the conservation of heat and has a high adhesion property, at the present time practically does not exist.
From RU 2099444, 20.12.1997 known multilayer coating over the entire surface of the metal element of the water supply network and the method of its application. The multilayer coating consists of an intermediate layer and a layer of thermosetting synthetic resin. The intermediate layer passivated chromium or an organic material containing tannic acid, and as thermosetting resin includes epoxy. The coating was prepared as follows: put intermediate layer, rinse and then put a layer of thermosetting resin by immersion in a bath (electrodeposition); the intermediate layer is applied by chemical deposition, followed by polymerization; can be applied an extra layer of thermosetting resin by immersion in the fluid, R is the target or electrostatic spraying and subsequent firing. The coating applied to the metal element (iron) water distribution network for drinking water.
From RU 2033568, 20.04.1995 known anti-corrosion coating for pipes, which is obtained as follows: a layer of primer on the pipe on the basis of liquid glass, then carry out the coating of flexible synthetic wrapping material to secure it to the pipe, for example a nonwoven material "Dornit" or "Polycaprolactam" (fix it, for example, a wire), and then put a layer of waterproofing material in the form of liquid paraffin or asphalt, for example, by dipping. Depending on the requirements of the pipeline is covered with a non-woven material in one, two, or three layers. The coating obtained has high barrier properties and provides a reliable protective insulation of pipelines, but does not have the insulating properties of the coating.
From RU 2088835, 27.08.1997 known corrosion rolled material to protect metal structures from corrosion on the surface of the structure is applied by winding the rolled material in the form of a porous fabric or non-woven substrate with mounted on it with a layer of anti-corrosion composition of a mixture of glue and inorganic binders (cement) when the ratio of the layer thicknesses of the bases of the roll of material and corrosion composition 11-15. This composition can be used for the protection of metal the definition of structures during construction and repair, in particular, when a small crossroad reorganization of the damaged sections of pipelines in the form of quick-patches.
Known from RU 2067718, 10.10.1996 combined corrosion-resistant coating to protect the pipe lines and valves in the chambers of the heat pipes and the method of its production, including pre-processing of the protected surface and the coats of the protective coating, the area of the protected surface after pre-processing is applied consistently two layers of viscous non-metallic corrosion-resistant material in the form of a toluene solution of silicone resin and then covered with sheets of metal foil (aluminum) overlap so that each successive sheet overlaps the previous by no more than 2.5 thickness of non-metallic anti-corrosion layer, while from the end of deposition of non-metallic corrosion-resistant material until installation is complete foil on the section of the heat pipe is not more than 15 minutes
Known coating mainly solves the problem of protection against corrosion, also, is technologically difficult to execute.
From RU 2039070, 09.07.1995 a method of obtaining fire-resistant coating, comprising applying to the surface several layers of a composition containing a binder and a filler, with intermediate drying of each layer and will graduate from the school by heat treatment of the coating, first, on the surface cause the insulating layers of a composition containing, in wt.%:
|the glass microspheres||40-70,|
and then layers of fire-resistant composition containing, wt.%:
|the glass microspheres||20,0-60,0|
|the boron nitride||of 0.5 to 20.0,|
the drying of each intermediate layer is carried out at 20-80°C, and final heat treatment of the coating at 80-150°C, and the total thickness of the fire-resistant layer does not exceed 3 mm.
However, using only glass microspheres with a diameter of 100-4000 μm does not provide full insulation products.
From RU 2187433, 20.08.2002 known method for insulating material on the basis of syntacto foam. When dosed ingredients, mix two reactive component of the binder, and fill the resulting composition microspheres, pour the received component for insulating material and the CTE is promote it while the content of each of the reactive components of the binder microspheres are produced separately, and then filled with a reactive binder components are mixed in proportions, parts by weight: the first reaction component and microspheres : the second reaction component and microspheres of 1:(0.1 to 0.4), the first reaction component : microspheres of 1:(0.2 to 0.4), the second reaction component : microspheres of 1:(0.2 to 0.4), and then make the fill and utverjdayut.
As microspheres using hollow glass microspheres and/or polymeric microspheres, having a hydrostatic resistance of at least 2 MPa.
As the reactive components of the binder used epoxy resin and a hardener of amine and/or amide type. Put insulating coating on the outer surface of the pipe, thus receive syntacto foam by mixing reactive components of the binder with the microspheres, forming them into a stream form a coating on a rotating and longitudinally moving pipe and utverjdayut coating on it, and the mixture is filled microspheres reactive components and the forming of the coating is realized by means of a mixing head, and combined with her ring forming chamber, covering the rotating and moving the pipe, moreover, the two stages are combined into one technological method.
This known method for insulating coating rather time-consuming, has limited application and does not provide full protection against overheating of various products used in harsh environments.
The technical objective of the claimed invention is the provision of the insulating properties of the coating of various surfaces, including metal, in particular surfaces of pipelines operated in specific harsh environments, while protecting them from corrosion, the improvement of the environmental characteristics and the simplification of obtaining coverage, increased fire resistance and durability.
The goal of the project is achieved by the claimed group of inventions, which includes a method for insulating multilayer combined polymer coating and its version.
So, the goal of the project is achieved by a method for insulating multilayer combined polymer coating, comprising the sequential application may be pre-heated surface of alternating layers: the first liquid-ceramic coating of the polymer composition, comprising a binder, a mixture of hollow microspheres with different sizes ranging from 10 to 500 μm and a bulk density in the range of the region from 650 to 50 kg/m 3and auxiliary additives target, then not-yet-dried coating layer is applied one or more layers of liquid ceramic coating specified above, and perform the final heat drying.
However before the final drying of the multilayer coating on the uncured liquid ceramic coating (on the still wet layer of it) is additionally applied, if necessary, one or more layers of fiberglass.
Another variant of the method described above as the invention is a method for insulating multilayer combined polymer coating, comprising the sequential application may be pre-heated surface of alternating layers: first of fiberglass, bonded to the surface of the substrate, or by mechanical means using glass-fiber threads, or by using high-temperature phosphate glue, then apply one or more layers of liquid ceramic coating of the polymeric composition containing a binder, a mixture of hollow microspheres with different sizes ranging from 10 to 500 μm and a bulk density in the range from 650 to 50 kg/m3and auxiliary additives target, then perform the final heat drying.
When this addition is applied, if necessary, and one and a few layers of fiberglass on the still uncured (wet) layer of liquid ceramic coating.
For the implementation of each of the variants of the method according to the claimed invention for the formation of liquid ceramic coating using a composition containing as one of the auxiliary additives, flame retardant ammonium polyphosphate, such as Exolit AP422, EXFLAM APP201 (containing P2About5>71%, N - 14,3%, particle size of 10.3 μm, the decomposition temperature 279,5°C, the degree of polymerization of 1200) or Exolit AP750 (containing P - 29,7%, N - 18,5%, degree of polymerization of 1000, the particle size of 15 microns, the decomposition temperature of 300°C.
In addition, the composition for liquid ceramic coating, which is one of layers of multilayer insulation coating, as one of the auxiliary additives may include surfactants Neonol (Neonol AF, AF-9P) ethoxylated monoalkylphenols-based propylene trimer, acting as a thickener and thixotropic additives, and/or coalescence (coalescers) additive (glycol ethers), such as ethyl cellosolve, methylcellosolve and others; and/or fungicidal additive, preservative additive preventing fungal deposits on the finished floor in wet areas (derivatives guanidino, pentachlorophenol sodium and others), and other additives target.
In the method according to the invention (and its variants) as the compositions used for forming a liquid-ceramic p the closure use of the composition, containing as a binder a variety of polymer latex compositions, for example, on the basis of styrene-acrylic latex, latex butadiene-styrene copolymer based on acrylic (co)polymers, polyvinyl chloride latexes, polyvinyl acetate latexes, epoxy resins, and glass-based, based on silicone resins such as silicone resin (organopolysiloxane emulsion of water: polymethylphenylsiloxane, polyphenylsiloxane, in particular silicone emulsion type silician), and the binder may be a mixture of silicone (organopolysiloxane) resins with other above-mentioned polymer latex compositions.
In particular, for the formation of liquid ceramic coating in the method according to the invention (and its variants) use a known and created by the author of a song from EN 2251563, 10.05.2005, or the author's claims as an invention composition based on liquid glass is an inorganic polymer (EN 2033568); epoxy resin (EN 2099444). Water-based silicone (organopolysiloxane) emulsion (EN 2039070).
This is known from RU 2251563 composition includes a polymeric binder and hollow microspheres made of a water-suspension of a composition with a viscosity of 1 to 100 PA·s, as a polymeric binder composition comprises a latex polymer latte is scurrying composition, containing from 10 to 90 vol.% (co)polymer selected from the group comprising a homopolymer of an acrylate, a copolymer of stirolakrilat, butadiene-styrene copolymer, polystyrene, butadiene polymer, a polyurethane polymer, a polymer or copolymer of vinyl acetate or mixtures thereof, from 10 to 90 vol.% a mixture of water and surfactant, as hollow microspheres composition contains a mixture of hollow microspheres with different sizes from 10 to 500 micrometers (μm) and different bulk densities in the range from 650 to 50 kg/m3selected from the group comprising hollow glass microspheres, hollow ceramic microspheres, hollow polymeric microspheres, hollow man-made (ash) microspheres, or a mixture thereof in the following ratio of the components of the water-suspension composition, vol.%:
|the above polymer latex composition||5-95|
|the above hollow microspheres||5-95|
Water-based polymer latex composition may further contain various auxiliary additives target, such as various white pigments, such as titanium dioxide, zinc oxide, etc., dyes (colored) pigments such as iron oxide pigments, the pigments is and the basis of the oxides of chromium, phtalocyanine blue and others; flame retardant (flame retardant) additives, such as, for example, aluminum trihydrate, ammonium polyphosphate, zinc borate, mica, asbestos and others; rust converters, such as, for example, the Converter PSR-2 based on phosphoric acid and others; corrosion inhibitors, such as, for example, sodium nitrite, sodium benzoate, chromate guanidine, tetrachromat zinc, AKOR-1, NG-203 in amounts conventionally used in such similar aqueous dispersions.
As the polymer binder composition comprises as known latexes based (co)polymers of acrylate, styrene, vinyl acetate, butadiene-styrene copolymer, polyurethane, polyvinyl chloride (PVC polymer)containing water and a surfactant, such as ethoxylated ALKYLPHENOLS, such as OP-6, OP 7, OP-10, proxenol based on block copolymers of oxyethylene and propylene and other traditionally used in water-based systems; and various other additives target, such as white pigments and dyes, corrosion inhibitors, rust converters, flame retardants, etc. and cooked directly on the basis of the above latexes or mixtures thereof.
For example, when receiving anti-corrosion and insulation coatings according to the invention as a polymer with sousage composition contains a latex polymer system, as latexes based on copolymers of vinyl acetate with ethylene, methyl methacrylate and methacrylic acid (base paints e-SU-511, e-SU-17), on the basis of polyvinyl acetate dispersion (50%) in the form of paints e-VA-27, e-WA-0112 and others; latex system (paint) on the basis of butadiene-styrene copolymer SCS-GP, BS-30, based on acrylic copolymers, DMA-GP, and styrene-acrylic company "Dow Chem", Primal 219N, acrylic MBI-5S, the polyurethane.
Hollow microspheres are one of the most important fillers used in the manufacture of plastics. The spherical shape controlled size and low density make them often irreplaceable. An important effect of applying them is to reduce costs of expensive or scarce polymers, as well as a decrease in the density. Traditionally they have a size of from 25 μm to 50 mm and a density of from 100 to 700 kg/m3.
In the claimed invention using mixtures of hollow microspheres (glass, ceramic, polymer, ash), the same or different, but with different sizes in the range from 10 to 500 μm and a variety of bulk density in the range from 650 to 50 kg/m3allows to significantly improve the efficiency of protection of surface treated materials (wood, concrete, plaster, metal from corrosion and thermal insulation.
Such properties of hollow microspheres as low Malopolskie, the inertia of the ease of dispersion, make them very attractive as fillers.
Hollow microspheres of glass, ceramics, polymers predominantly obtained by introducing a blowing agent into the basic material, the subsequent grinding and heating for foaming of the blowing agent.
So, for example, hollow microspheres obtained by transmission of small particles containing porofor, through the high temperature zone; particles melt or soften in the hot zone, and the blowing agent forms a cavity inside the particle, expanding them. Upon cooling of the sphere in the air its walls harden. Either get them by foaming glass (or ceramic) particles in the flame of the burner, etc. as hollow microspheres are used, for example, microspheres of the type of the Voice of Babes, type Microballoon; globanet, spherulite. Ceramic microspheres are also by burning natural materials and foaming.
Polymeric hollow microspheres receive, as a rule, or suspension polymerization of the monomers with the addition of pore-forming (porofor, inert gases, low boiling hydrocarbons), or by physical or chemical foaming ready polymeric regrind particles. As hollow polymeric microspheres of the invention using hollow microspheres, for example of polystyrene, based on phenol-formaldehyde resins, forces Kanovich, urea-formaldehyde resins, and others.
The composition is prepared by mixing a certain sequence of initial components with thorough mixing to achieve a uniform and homogeneous structure, and it can be applied on different surfaces as one of the layers in the proposed method, various known methods, for example by using a spray gun airless spray, brush or roller, the number of layers from one to five with thorough drying of each layer.
In the following table 1 shows examples of compositions containing a mixture of hollow microspheres with certain parameters and used for forming a liquid ceramic coating.
To obtain a multi-layer insulating coating as one of the layers used fiberglass canvas (fiberglass), using, in particular, non-woven material made of chaotically located bonded with synthetic binder glass staple fibres, reinforced with woven glass strands of continuous glass fiber, for example, brands CENTURIES-AM, PSC-T-450. The thickness of the glass fiber may be, for example, 0,8±0,2 mm
As a high-temperature glue use different phosphate adhesives (based on aluminophosphate ligaments).
Examples of compositions for forming a liquid ceramic coating.
|Name of the component||The content of components according to the examples, wt.%|
A. Polymer latex composition
|Polyvinyl acetate latex (50%)||60,0||-||37,0||-||-||-||-||-|
|Dimethylacrylate latex (DMA-1-65-SE)||-||50,0||-||30,0||-||-||-td align="center"> -|
|C. Variance methylphenylsiloxane resin (Cilician)||-||-||-||-||5,0||95,0||20,0||-|
|Epoxy resin ED-20) with otvetit. PEPA||-||-||-||-||-||-||-||40,0|
|2. A mixture of hollow microspheres:||80,0||50,0||60,0||40,0||95,0||5,0||80,0||60,0|
|the mixture of glass microspheres:|
|- glass. microspheres with a size of 35 microns and a density of 650 kg/m3||24,0||-||30,0||-||24,0||-||24,0||-|
|- glass. microspheres with a size of 100 μm and a density of 150 kg/m3||48,0||-||-||-||48,0||-||48,0||-|
|- glass. microspheres with a size of 200 microns and a density of 70 kg/m3||8,0||-||30,0||20,0||23,0||-||8,0||-|
|the mixture of polymer microspheres:|
|- polystyrene microspheres with a size of 10 μm and a density of 650 kg/m3|
- polystyrene microspheres with a size of 500 μm and a density of 50 kg/m3
|- polystyrene microspheres with a size of 50 μm and a density of 400 kg/m3||-||30,0||-||-||-||-||-||20,0|
|3. Auxiliary and additives target:|
|- NEONOL AF||10,0||-||-||-||-||8,0||-||4,0|
|Pigments and fillers:|
|- titanium dioxide||-||15,0||-||-||-||1,0||-||-|
|- zinc oxide||-||-||-||-||1,5||-||15,0||-|
|Cholesterola additive (cellosolve)||1,5||-||2,0||-||0,5||-||1,0||-|
|- borate zinc||-||-||-||-||-||-||-||-|
|- ammonium polyphosphate||3,0||-||1,5||-||4,0||-||3,0||-|
|Dispersant (sodium polyphosphate)||-||-||-||-||-||-||5,0||-|
|Fungic is DNA Supplement (pentachlorophenolate sodium)||-||2,0||-||-||-||-||-||-|
|Biocidal additive (polyhexamethylene guanidine in the form of a salt)||-||-||-||0,5||10,0||-||-||-|
|Note: In examples 1-8, the number of auxiliary additives are given per 100% of the mixture of binder and hollow microspheres.|
The following are specific examples of what realizatsii the method according to the invention.
A metal cylinder (pipe), inside of which was placed the measuring thermocouple was covered with two layers of fiberglass PSC-T-450 (which was reinforced with fiberglass filaments). Then fiberglass struck one layer of Isollat-04 liquid ceramic coating (example 1-4) with a thickness of 0.5 mm Metal cylinder with the obtained coating rise for 2 hours at 200°C. the Glass fiber bonded with the surface or with the help of glass yarns, or with phosphate glue (brand CFFH)
Then the temperature inside the cylinder dropped to 100°C.
The resulting coating was wrapped in two layers of fiberglass PSC-T-450 (secured in the same way). Then on the fiberglass was applied 5 layers Isollat-02 each thickness of 0.5 mm with an interval of 30 minutes After application of all layers of the specimen has been warming at 100°C for 2 hours.
Next, the temperature gradually raised to 400°C with an interval of 30 minutes
The results are given in table 2.
|The temperature inside the cylinder, °C||The temperature on the floor, °C|
In the result, and the test detected, what in the whole temperature interval was not observed cracking of the coating or color change.
On the surface, for example, tubes of heat supply, which is filled with heated water with a surface temperature of +115°C, put the composition in example 5 (table 1) using a roller. Moreover, the composition may be applied first to the cold surface with a thin layer, followed by heating up to 200-250°C, then heated surface in a thin layer, then on the still wet coating is applied fiberglass, and then one or more layers of liquid ceramic coating from one of the compositions according to examples 1-8 (see table 1).
Table 3 presents some properties of the multilayer coating.
|The tensile strength, kgf/cm|
Elongation at break, %
The density of liquid, kg/DM
The density of the coating, kg/DM
Water vapor permeability (g/m/h
Permeability, g/m/24 h
The reflection, %
The light diffusing, %
thermal resistance coefficient for radiation component
thermal conductivity at 2 mm coating
thermal conductivity for radiating the component of heat transfer, V/MS
thermal conductivity for the contact part of the heat transfer In/MS
The resistance, min
less than 30.0
As follows from the data obtained multilayer composite insulating cover has all the necessary complex of physical and mechanical properties, providing primarily protected surface high insulating properties.
1. A method for insulating and fire-resistant multilayer combined polymer coating, comprising the sequential application may be pre-heated surface coating layer, the first liquid-ceramic coating of the polymeric composition containing a binder, a mixture of hollow microspheres with different sizes ranging from 10 to 500 μm and a bulk density of 650 to 50 kg/m3and auxiliary additives target, then not-yet-dried coating is applied one or more layers of fiberglass and forth on the surface of the glass fiber is applied one or more layers of liquid ceramic coating, then carry out the final drying of the coating.
2. The method according to claim 1, characterized in that before the final drying in addition put one or a number of the layers of fiberglass on the still wet layer of liquid ceramic coating.
3. The method according to one of claims 1 and 2, characterized in that the liquid ceramic coating made from the composition containing as one of the auxiliary additives, flame retardant ammonium polyphosphate.
4. The method according to one of claims 1 and 2, characterized in that the liquid ceramic coating made from the composition containing the thickener and thixotropic additive.
5. The method according to one of claims 1 and 2, characterized in that the liquid ceramic coating made from the composition containing as one of the auxiliary additives coalescers Supplement.
6. The method according to one of claims 1 and 2, characterized in that the liquid ceramic coating made from the composition containing as one of the auxiliary additives biocide or fungicide additive.
7. A method for insulating and fire-resistant multilayer combined polymer coating, comprising the sequential application may be pre-heated surface of alternating layers, the first layer of fiberglass, bonded to the surface of the substrate, or mechanically by means of glass fiber filaments, or by using high-temperature phosphate glue, then apply one or more layers of liquid ceramic coating of the polymeric composition containing a binder, a mixture of hollow microspheres, which differ in the size of the mi in the range from 10 to 500 μm and a bulk density of 650 to 50 kg/m 3and auxiliary additives target, then perform the final drying of the coating.
8. The method according to claim 7, characterized in that before the final drying is additionally applied one or more layers of fiberglass on the still wet layer of liquid ceramic coating.
9. The method according to one of claims 7 and 8, characterized in that the liquid ceramic coating made from the composition containing as one of the auxiliary additives, flame retardant ammonium polyphosphate.
10. The method according to one of claims 7 and 8, characterized in that the liquid ceramic coating made from the composition containing the thickener and thixotropic additive.
11. The method according to one of claims 7 and 8, characterized in that the liquid ceramic coating made from the composition containing as one of the auxiliary additives coalescers Supplement.
12. The method according to one of claims 7 and 8, characterized in that the liquid ceramic coating made from the composition containing as one of the auxiliary additives biocide or fungicide additive.
SUBSTANCE: present invention pertains to a coating, preventing ice-covering of different surfaces and objects, especially pipes, electrical cables, metal, concrete, plaster etc, and with anticorrosion and heat insulating properties at the same time. The coating is made from a water dispersion composition with viscosity 1-100 Pa·s, containing a polymer binder in form of a 5-95 vol. % polymer latex composition, containing 10-90 vol. % (co)polymer, chosen from a group, comprising acrylate homopolymer, styrene-acryl copolymer, butadiene-styrene copolymer, polystyrene, butadiene polymer, polyvinylchloride polymer, polyurethane polymer, vinyl acetate (co)polymer or their mixture and 5-95 vol. % mixture of hollow microspheres with diameter varying from 10 to 500 mcm and different packed density from 650 to 50 kg/ m3, chosen from a group, comprising hollow glass microspheres, hollow ceramic microspheres, hollow polymer microspheres, hollow technogenic (ash) microspheres or their mixture and from 10 to 90 vol. % mixture of water and a surface active substance, and deposited, at least, in form one layer on the protected surface, with subsequent drying of the coating.
EFFECT: increased effect of the coating.
SUBSTANCE: invention relates to manufacture of paint and varnish materials. The water-dispersive elastic first coat contains film-forming-unplasticised water-copolymer dispersion based on of acrylic and methacrylic acid ethers and styrene MOVOLIT 760 in the amount of 35 to 40 wt %, foam-suppressor BIK-037 representing a water emulsion of the mix of mineral oil, paraffin and (poly)methyl siloxane in the amount of 0.1 to 0.3 wt %, biocide additive in the form of the antiseptic additive ROSIMA 243 representing 10-th solution of octylisothiazolone in diethylene glycol in the amount of 1.0 to 1.5 wt %, intracontainer preservative ROSIMA 535N based on the composition of formalin and a mix of 5-chlorine 2-methyl-2N-isothiazole-3-on and 2-methyl-2H-isothiazole-3-on in the amount of 0.1 to 0.3 wt % and water.
EFFECT: water-dispersive elastic first coat with high elasticity and depth of penetration into substrate.
2 tbl, 3 ex
SUBSTANCE: invention refers to protective filming finishes on various surfaces and materials, specifically applied for pipelines and building structures. Liquid ceramic insulation finish represents water-suspension composition including mixed air-filled hollow ceramic and silicon microspheres, plastic binder that is acrylic latex, defoaming agent Sotro-145 representing waterless composition of nonionic surface-active substances, silicon organic liquid and active admixtures, preserving agent that is germicide representing reaction product of monoethanolamine and paraform, pigment that is titanium dioxide, anticorrosive pigment that is zinc phosphate, polymeric additive Verowett 8004 as dispersant, aqueous emulsionof acrylic copolymer as thickening agent, water, with added fractal aggregates that are highly-loosened porous structure in the form of aerogel, expanded vermiculite and Circulite, hydrophobisator and bulking agent that is carbon white.
EFFECT: production of finish with improved thermal protective, noise absorbing and wear-resistant properties.
1 tbl, 4 ex
SUBSTANCE: invention pertains to water-base lacquer coating materials, meant for depositing on metallic and non-metallic structures in construction, aviation technology and other industries. Description is given of the lacquer coating composition, which contains water-base aryl copolymer "ОЛД-04С" - a product of cohydrolysis of acrylic acid, methacrylic acid, methyl methacrylate, butyl acrylate and calcium (meth)acrylate in quantity of 100 wt %, pigments 50-205.1 wt %, silicone fluid 0.3-0.7 wt %, water 450-550 wt %. The pigments used in the proposed composition are in form of titanium dioxide, blue phthalocyanine pigments, blue anthraquinone, green phthalocyanine, yellow light resistant, red iron oxide, coloured refractory pigments, carbon black and or their mixture. The composition can also contain filler in form of talc, kaolin, modified nano-silicate and or their mixture in quantity of 7-93 wt %, and melamine phosphate in quantity of 1-5 wt % as a fire retarding agent.
EFFECT: proposed lacquer coating composition provides for good rheological properties, in particular good opaqueness, high water resistance and freeze resistance with retention of adhesive and physical and mechanical properties.
FIELD: technological processes.
SUBSTANCE: varnish represents opaque liquid, which performs protective layer on the surface of PVC linoleum during processing in technological line and demonstrates decorative properties and resistance to influence of chemical agents. Invention provides production of high quality product, which consists of chain of chemical compounds suitable for application on the layer of printing paints as protective coat, including ultraviolet radiation, which produce after emulsification and correction of viscosity strong protective layer of varnish coat with proper colour gamma of opaque layer.
EFFECT: higher resistance of protective coat.
2 cl, 2 ex
SUBSTANCE: invention pertains to production of coating materials, in particular to finishing materials, used for external and internal finishing of buildings and other structures, and more specifically relates to materials for coating concrete surfaces. Description is given of the latex priming composition, which contains a latex film-forming agent in form of a 50% syrup of acrylic dispersion DL-430 or Acronal-290 based on a copolymer of methylacrylate, butylacrylate, acrylamide, styrene and ethylbenzene in quantity of 5-50 mass %, plasticiser - dibutylphtalate or dioctylphtalate in quantity of 0.2-3.0 mass %, surface active substances based on polyoxyethylene esters of alkylphenols in quantity of 0.2-1.0 mass %, kaolin 20-30 mass %, fine-dispersed chalk 20-30 mass %, thickener 0.4-6.0 mass %, carbon black 0.2-1.0 mass % and water. The composition contains an extra technical target additive, chosen from a group containing a coalescent additive, anti-foaming agent, antiseptic additive, alkali, antifreeze or their mixture.
EFFECT: obtaining latex priming with short drying time, low water absorption and vapour permeability, high freezing and heat resistance.
2 cl, 1 tbl, 5 ex
FIELD: inorganic chemistry.
SUBSTANCE: invention refers to production of materials used for protective coatings of various natural and man-made surfaces. Method is realised in the following way: neonol, marble powder are fine grinded in ball grinder. White spirit, aqueous ammonia (25%) and water are added and mixed to homogeneous composition which is added with carbon nanofibre, carbon nanoclusters and butadiene-styrene latex, all specified components are additionally mixed to homogeneous composition, added with defoaming agent and thickener. Produced material is packed. As carbon nanofibre and carbon nanoclusters components produced by methane pyrolysis on catalyst Ni/MgO at fibre length 50-100 mcm and diameter 20-60 nm. Finished product has high adhesive ability and protective properties as applied on metal, polymer surfaces, wood and other materials.
EFFECT: production of high-adhesive coating material with high protective properties.
FIELD: light industry; composition of decorative coats for wallpaper; manufacture of pearly ink for intaglio printing on wallpaper.
SUBSTANCE: composition of proposed printing ink for wallpaper contains 16-16.5 mass-% of pearly pigment; 12-12.5 mass-% of ethyl alcohol; 46-46.4 mass-% of binder - acrylic latex of butyl acrylate copolymer (19-21%) and methacrylic acid (10-12%) and water; copolymer acrylic latex is produced by method of radiation emulsion polymerization of butyl acrylate, vinyl acetate and methacrylic acid under action of ionizing radiation at dose rate of 0.05-0.1 g/s to absorbed doses of 1.5-2 kgr.
EFFECT: avoidance of lamination of ink; easily washable ink; enhanced heat resistance of ink.
1 tbl, 2 ex
FIELD: manufacture of heat-insulating materials for surfaces of any form which are also used as sound-insulating, waterproofing, anti-corrosion and sealing materials.
SUBSTANCE: proposed coat is made from composition containing the following components: binder in dry state, hollow micro-spheres and water to required consistency. Binder is selected from group containing the following components: dry copolymer re-dispersible powder or mixture in the amount of up to 95 mass-% with dry re-dispersible water glass in the amount of up to 80 mass-% and/or with cement in the amount of up to 60 mass-%. Used as follow micro-spheres is borosilicate glass at bulk density of 0.05-0.35 g/cm3. Composition may also contain filler in the amount of up to 45 mass-%.
EFFECT: possibility of obtaining ecologically pure composition of protracted term of storage; enhanced heat conductivity of coat.
3 cl, 5 ex
FIELD: varnish-and-paint industry.
SUBSTANCE: invention relates to lacquer materials, in particular to primers intended grounding and impregnating building font walls and interiors, including those with increased moisture content, concrete, brick, stone, and plaster surfaces as well as gypsum-cardboard and particle boards, and wood surface before being painted. Water dispersion composition of invention including film-forming agent (48-52% aqueous acrylstyrene dispersion), thickener (methylhydroxyethylcellulose "Tilosa MN 30000 VP-2"), preservative (solution of isothiazalinone derivatives: 1,2-hydroxy-5,8,11-trioxadodecane, 1,3-bis(hydroxymethyl)urea, 1,6-hydroxy-2,5-dioxahexae "Parmetol A-26") and synergetic mixture of aromatic and heterocyclic algicidal and fungicidal active additives "Parmetol DF 19"), antifoaming additive (tributylphosphate and mineral oil constituted by mixture of unsaturated fatty acid ester with hydrophobic silica "Foameks K-3"), medium pH regulator (5% aqueous ammonia), water as solvent, and additionally ethyl alcohol, dispersing additive (sodium polyphosphate), surfactant (polyoxyethylated alkylphenol ether OP-10), pigment (titanium dioxide), extender (chalk and talk and additionally calcium carbonate), all in specified proportions.
EFFECT: enhanced spreading capacity and whiteness.
FIELD: multi-layer plastic products.
SUBSTANCE: multi-layer product is made of plastic with strong reflection of infrared radiation, strong shine and selectivity coefficient above 1,15, and includes three layers A, B and C, where layer B is between layers A and C, and layer A contains transparent thermoplastic plastic, layer B has thickness ranging from 15 to 250 micrometers and contains transparent thermoplastic plastic and pigment which consists of transparent carrier material and titanium dioxide layer with thickness ranging from 150 to 200 nanometers applied to it, and where layer B contains transparent thermoplastic plastic. As transparent thermoplastic plastic included in composition of A, B and C layers, polycarbonate may be used. The product which contains aforementioned multi-layer product may be used for cladding walls, barriers, ceiling cover, suspension ceiling, cladding glass for greenhouses, cladding glass for winter gardens, cladding glass for bus stops, ceiling, cladding glass for weakening passing light, replacement of paintwork covers and thermal isolation product.
EFFECT: increased efficiency.
2 cl, 4 tbl, 1 ex
FIELD: chemical industry; methods of production of the multilayered microporous films.
SUBSTANCE: the invention is pertaining to the multilayered microporous films and, in particular, to the microporous films including at least two microporous film layers and to the method of production of the multilayered microporous films. The film layers may be produced with the controlled size of the pores to meet the needs the customer or for optimization of the different properties of the multilayered films. The technical result of the invention consists in creation of the improved microporous films and specially in development of such microporous films, in which may be achieved the combination of the desirable properties, and also in the method of production of such films. The indicated problem is being solved due to the fact, that the multilayered microporous film includes the first and the second coextruded film layers, where each film layer gains the microporosity at its drawing. At that the first film layer is made out of from the first polymeric composition containing the ethylene polymeric compound and the first pore-forming filler and has the first maximum size of the pores; and the second film layer is made out o the second polymeric composition containing the polypropylene compound and the second pore-forming filler and has the second maximum size of the pores differing from the first maximum size of the pores. At that the second layer containing polypropylene has no the free surface in the multilayered film and so the multilayered microporous film is impermeable for the liquids at the atmospheric pressure. The problem also is being solved due to usage of the different versions of the multilayered microporous films and the method of production of such films.
EFFECT: the invention consists in creation of the improved microporous films, specially in development of such microporous films with combination of the desirable properties and in the method of production of such films.
35 cl, 1 tbl, 4 ex, 19 dwg
FIELD: polymer items possessing fluorescent properties and property of reflection in opposite direction; information and signaling appliances.
SUBSTANCE: proposed sheet item has sublayer of film coated with fluorescent paint at concentration of from 0.001 to 1.5 wt-% relative to polymer matrix of sublayer, film of overlayer coated with fluorescent paint at concentration of from 0.001 to 1.5 wt-% relative to polymer matrix of overlayer. Fluorescent film of overlayer coated with paint possesses higher resistance to light as compared with sublayer film. Sheet of painted fluorescent film of overlayer lies over sheet of sublayer fluorescent film. Sheet item has selected fluorescent color different from color of overlayer fluorescent film and from color of sublayer fluorescent film. Specification gives description of production of such items.
EFFECT: enhanced resistance to action of atmospheric conditions; enhanced durability of color; wide range of color.
53 cl, 17 dwg, 8 tbl, 15 ex
FIELD: polymer material.
SUBSTANCE: invention relates to polymeric multilayer fluorescently stained particles widely applicable for distribution of visible information and provides sheet-shaped fluorescence-emitting articles. These have at least two film layers, each of which contains fluorescent dye in polymer matrix. Stained film of the upper layer is characterized by higher resistance to UV emission than stained sublayer film, and article itself has specified fluorescent coloration differing both from coloration of said stained fluorescent sublayer film and from coloration of said stained fluorescent upper layer. Manufacturing process for such articles is also described. Articles may optionally contain light-returning elements suitable as warning signs such as pedestrian crossing signs and signs indicating school zones, which emit fluorescent yellow color.
EFFECT: ensured resistance to weather conditions, increased color durability, and improved coloration characteristics regulated by industrial standards for particular conditions.
37 cl, 14 dwg, 3 tbl, 11 ex
FIELD: manufacture of gas-permeable materials containing layer of low-stretchable fabric and microporous coat for use in construction engineering.
SUBSTANCE: microporous coat contains composition of crystalline polymer and filler. Method of manufacture of gas-permeable material includes extrusion of coat on layer of low-stretchable material. Coat is made from composition of crystalline polymer and filler. Tension of non-woven material layer is increased.
EFFECT: enhanced strength or stiffness of non-woven material layers; facilitated procedure of process.
29 cl, 2 ex
FIELD: food industry; packing.
SUBSTANCE: proposed packing material contains main layer of fibrous material, at least one gastight polymeric barrier layer protecting packed product and at least one polymeric thermosealing layer as surface layer of material. Thermosealing layer includes light-absorbing black pigment protecting product from visible light and white pigment. White and black pigments are mixed with thermosealing polymer thus forming thermosealing layer to impart gray color to layer. Invention contains description of pack for food product formed from said packing material and method of food packing.
EFFECT: provision of packing material of improved barrier layer impermeable to light and resembling aluminum foil.
18 cl, 1 tbl, 7 dwg
FIELD: packing laminated plastic, and also folding roller, including the means for applying patterns of bending lines onto packing laminated plastic, and also to layer for usage in packing laminated plastic.
SUBSTANCE: packing laminated plastic contains one of layers, composition of which includes metallic magnetizable particles, acting as information carriers. Roller contains means for application of pattern of bending lines onto packing laminated plastic, and also additionally contains means for application of magnetic fields. Device for performing technological operation over laminated plastic additionally contains device for applying magnetic field for magnetization of magnetizable particles in laminated plastic.
EFFECT: creation of layer in packing laminated plastic, by means of which it is possible to apply decorative patterns to whole surface of package without necessity to keep free spaces for guiding marks; decreased risk of damage to said marks caused by mechanical influences; it is possible to use whole surface of package as information carrier.
5 cl, 7 dwg, 6 ex
FIELD: manufacturing multi-layered films.
SUBSTANCE: film comprises base made of bi-axially oriented polypropylene film and polyolefin film. Before laminating, the polyolefin film is colored. The multi-layered film is oriented in transverse direction or longitudinal direction and transverse direction after laminating. The thickness of the multi-layered film ranges from 8 μm to 26 μm. The method of producing the multi-layered film is also presented.
EFFECT: expanded functional capabilities.
9 cl, 3 ex
FIELD: laminated material for manufacture of packaging containers by folding and thermal sealing and packaging containers for liquid food products manufactured from said material.
SUBSTANCE: packaging material 10 has central layer 11 of paper or cardboard and layer 12 of polyolefin with mineral filler on one side of central layer. Layer 12 with mineral filler has thickness of from 30 micron to 100 micron and has mineral particles in an amount of from 40% to 70% by weight of layer 12 with mineral filler. Both sides of central layer are provided with water-impermeable coating of polyolefin.
EFFECT: increased rigidity and provision for manufacture of containers with improved capturing properties.
8 cl, 4 dwg
FIELD: technological processes.
SUBSTANCE: bale of cubiform shape has flat top, flat bottom and multiple side walls, contains sealed chamber, which has internal volume at pressure that is less than ambient atmospheric pressure. Internal volume of package contains bulk material, volumetric material from fibres, fibres or fibre materials. Density of material makes 0.48-0.82 g/cm3. At least single wall contains facility for vacuumising. Method of fibres packaging, including elastic ones, includes placement of fibres in internal volume of chamber, their compression, airtight sealing, vacuumising and elimination of compression.
EFFECT: provision of packed material integrity; more compact placing of bales during their transportation; potential danger for users is reduced when using fastening means.
28 cl, 11 dwg, 2 ex