Polymer compound for protective corrosion-resistant barrier-type coating

FIELD: chemistry.

SUBSTANCE: invention refers to polymeric compound for improved corrosion resistance coating to be used for corrosion protection of structural components of metal and concrete buildings, pipelines, metal carriers and assemblies for various engineering fields, to design wear-proof self-levelling floors being solvent and oil resistant, as well as for decorative finish of the surfaces specified above. The compound is two-component and is generated by combining component A and component B in ratio 1:0.01 to 1:100. Component A contains the following components in ratio, wt %: diane epoxy resin 60-62, aliphatic epoxy resin 12-13, basalt bulk additive 26-27. Basalt bulk additive is andesite basalt scale of fraction size 0.001-0.4 mm. Component B is mixed oligoamide hardener in amount 71-73 wt % and specified andesite basalt scale in amount 27-29 wt %. Hardener is aromatic oligoamide ETAL. Invention allows for lower toxicity of compound, improved barrier protective properties, and extended functional area.

EFFECT: lower toxicity of compound, improved barrier protective properties, and extended functional area.

2 tbl

 

The invention relates to chemical technology and specifically relates to creating a corrosion-resistant polymeric barrier coatings on a variety of surfaces intended for the device wear-resistant, thixotropic coatings with high resistance to aggressive environments? and can be used to protect structural elements from metal, concrete, pipelines, buildings and structures, metal components and assemblies in various industries, while creating wear-resistant corrosion-resistant self-leveling floors, resistant to solvents and petroleum products, as well as in decorative finishing a variety of surfaces.

Known polymeric anticorrosion coatings are traditionally filled, in particular highly filled. As fillers are used for these purposes, for example, quartz sand (EN 2250946, 27.04.2005), full of silica microspheres (EN 2004113553, 20.10.2005), various silicates (ANDESITES, bentonite, perlite, vermiculite, oxides of metals (RU 2265619, 10.12.2005), talc, graphite (EN 2264428, 20.11.2005).

Use, therefore, the filler plate, spherical, micronized with a developed surface.

Of polymers for these purposes are widely used epoxy resins because of their good adhesion to various surfaces and chemical resistance to the effects of agression the x environments.

From SU 431198, 05.06.1974 known anticorrosive composition containing epoxy resin, dibutyl phthalate, acid curing agent and accelerator, for example dimethylaniline, having increased wear resistance and heat resistance of the composition in terms of hydroabrasive wear and containing highly dispersed silicon dioxide with a specific surface area of 150-400 m2/g and a mineral filler, and components are taken in the following ratio (in weight. PM):

Epoxy Dianova resin100
Dibutyl10-20
Highly dispersed silicon dioxide1,5-3
Acid compound30-50
Mineral filler100-500
The accelerator, for example dimethylaniline0,1-0,5

The hardener composition contains phthalic and maleic anhydrite, as mineral filler - diabase flour, basalt flour, andesite flour, silicon carbide, aluminium oxide.

The composition provides a protected surface enhanced heat resistance and iznosostoyki the industry in terms of hydroabrasive wear, but at present does not meet the higher requirements.

From SU 443047, 15.09.1974 other known epoxy compound used to protect concrete surfaces from damage, for example surfaces of sewer pipes, which are a mixture of epoxy Dianova tar, anthracene oil, curing agents - polyethylenepolyamine and triethanolamine and filler, which is basalt flour.

This known composition provides coverage also improved wear resistance, but has a long curing time 6-18 hours, and also quite toxic due to the large content of anthracene oil.

From the prior art known basalt filler in the form of basalt flour (SU 443047, 15.09.1974), and basalt fibers (SU 2260022, 10.09.2005; SU 827511, 21.05.1979) and basalt scales.

For example, SU 1831871, 27.05.1995 known chemically resistant polymer composition for coatings based on acrylate monomers in combination with polyisocyanate, divinylbenzene and containing as filler basalt scales. However, the composition is quite toxic.

From RU 2057157, 27.03.1996 known oil composition for coating, which comprises epoxy resin ED-20, furfural, a solution of diethylenetriaminepenta in acetone (mass ratio 2:1), polyaniline is ini chloride (M. M 420), perchlorovinyl resin, basalt flakes in the following ratio of components, parts by weight:

Epoxy resin rail-2050-95
2-Perillaldehyde (96 MM)10-40
Solution in acetone (2:1 ratio)30:95
Polyvinilpirolidone + chloride (420 MM)0,02-2,8
Perchlorovinyl resinof 0.03 to 3.0
Basalt flakes5-250

The song is also quite toxic due to the presence in it of shrilled, polivinilidenkhlorida.

The technical objective of the claimed invention is to reduce the toxicity of the composition, the improvement of barrier properties in the coating and extending its functionality.

The goal of the project is achieved in that the polymer composition for a protective barrier type on a variety of surfaces, including epoxy Dianova resin, hardener, basalt filler, contains as basalt filler andesite basalt scales with the size f the shares of 0.001-0.4 mm, as a hardener aromatic oligoimide type ETAL, optionally aliphatic epoxy resin, and the composition is the two packages and is formed by combining the component containing in wt.%:

epoxy Dianova resin60-62
aliphatic epoxy resin12-13
specified andesite basalt scales26-27

and component B containing, in wt.%:

specified oligoamine hardener71-73
specified andesite basalt scales27,0-29 (27-29)

and when the ratio of the component a and the component B is from 1:0.01 to 1:100.

Polymer composition according to the invention as epoxy Dianova resin includes, for example, epoxy Dianova resin ED-20 ED-16, ED-40.

As the aliphatic epoxy resin includes, for example, aliphatic epoxy resin deg-1.

As a hardener polymer composition according to the invention contains hardeners type ETAL produced by the firm "Apical" (Moscow), for example ETAL-45M (the romantic oligoimide); it is non-toxic and is suitable for curing epoxy resins at temperatures ranging from -7°C to 45°C in conditions of any moisture (TU 2257-045-18826195-01).

In the claimed compositions used basalt plate filler in the form of andesite basalt basalt with fraction size (size fractions) of 0.001-0.4 mm, for example brand ABC-100.

Andesite basalt scales used in the claimed invention, derived from the natural material basalt group - undesirable (from the melt), with the subsequent formation of melt solid vitrified lamellar particles and chemical-heat treatment in an oxidizing gas environment.

Below is an example of the description of the technological scheme of the process of obtaining a polymer composition according to the invention.

1. First get component And mixing epoxy resin (epoxy Dianova resin ED-20 and aliphatic epoxy resin deg-1), then carry out the dispersion andesite basalt scales with particle size of 0.001-0.4 mm in a mixture of epoxy resins.

2. Get component B, mixing the hardener ETAL-45M with andesite basalt scales.

Table 1 shows the quantitative ratio of the components a and B.

Table 1
Component a
№ p/pName of the componentMass fraction, %
123
1Epoxy resin ED-2060,061,062,0
2Aliphatic epoxy resin deg-113,012,5to 12.0
3Basalt scales ABC-10027,026,526,0
TOTAL %100100,0100
Component B
№ p/pis imenovanje components Mass fraction, %
123
1Etal-45M71,072,073,0
2Basalt scales ABC-10029,028,027,0
TOTAL %100100,0100

Table 2 presents the main characteristics of the obtained components a and B as parts claimed the two packages polymeric composition.

Table 2
Name
index
The norm for the componentThe norm for component BTest method
Appearance Dark brown viscous suspensionDark brown viscous suspensionOn 353-105-1207-TO
Mass fraction of volatile substances,%, no more22According to GOST 17537
Dynamic viscosity at (25+0,5)°C, Passing4-82-3,5According to GOST 25276-82

Before coating of the claimed polymer compositions of components a and B (prepared in advance and stored separately from each other) are mixed, for example, in the mixer, a screw type or in a heated reactor at a ratio of from 1:0.01 to 1:100.

Depending on the method of coating, the viscosity of the composition (working strength) regulate by means traditionally used for this purpose organic solvents such as solvent No. 646, RB, ethanol and other solvents.

The resulting coating provides its purpose is the prevention of the contact environment, causing corrosion, with the surface to be protected at the expense of the barrier structure of the polymer coating and resistance to aggressive environments polymer base.

The coating obtained, in particular, has good adhesion to the hypoxia surfaces (metal, concrete and so on), good elasticity, resistance to aggressive media, water resistance:

- tensile strength at separation - 40,0-50,0 MPa;

- tensile strength Flexural - 70-75 MPa;

- impact strength, kJ/m2- 15,0-16,0;

- the strength at break of >25 kV/cm2.

Polymer composition for a protective corrosion-resistant coating of barrier type on a variety of surfaces, including epoxy Dianova resin, hardener, basalt filler, characterized in that it contains as basalt filler andesite basalt scales with the size fraction of 0.001-0.4 mm, as a hardener is an aromatic oligoimide type ETAL, optionally aliphatic epoxy resin, and the composition is the two packages and is formed by combining the component that contains, wt%:

epoxy Dianova resin60-62
aliphatic epoxy resin12-13
specified andesite basalt scales26-27

and component B containing, in wt.%:
specified oligoamine hardener71-73
specified andesite basalt scales27,0-29,0

and when the ratio of the component a and the component B is from 1:0.01 to 1:100.



 

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4 cl, 2 tbl

FIELD: chemistry.

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2 tbl, 8 ex

FIELD: chemistry.

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Coating composition // 2335521

FIELD: chemistry.

SUBSTANCE: composition includes the following component range, weight parts: epoxy diane resine 30.0-60.0; amide-containing acrylic resin 60.0-120.0; polyamine solidifier 15.0-50.0; pigment 22.0-136.0; fillers 57.0-150.0; organic solvent 580.0-900.0. The composition includes condensation products of dimerised fatty acids of vegetable oils with poluethylenepolyamine, as polyamine solidifier. Additionally the composition can contain a mix of dibutylphthalate and tricresylphosphate in amount of 4.4-8.4 weight parts as plasticiser.

EFFECT: improved optic properties of coating; higher hardness, durability, elasticity, burr resistance, light stability, water and heat difference resistance.

5 cl, 2 tbl, 8 ex

FIELD: chemistry.

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EFFECT: environmentally safe wood composite is gotten and physical and mechanical properties are enhanced.

2 tbl, 1 dwg

Lacquer composition // 2314328

FIELD: varnish-and-paint industry.

SUBSTANCE: invention relates to lacquer composition useful in surface, undersurface, and hydroengineering construction, e.g. to protect steel, concrete, and reinforced concrete surfaces. Composition consists of base including 40-70% epoxide dian resin modified with coal-tar resin, preferably with liptobiolytic resin preliminarily stabilized with hexamethylenetetramine, pigments, water-soluble solvent having solvation capacity not lesser than that of water in amount of 10-30% of the weight of base, and amine-type hardener. Pigments are selected from red lead, carbon white, and aluminum powder. If necessary, composition further contains talk and/or quartz sand as extender in amounts up to 30% of the weight of base.

EFFECT: increased resistance against acids, alkalis, and sea water.

3 tbl, 17 ex

FIELD: paint and varnish materials.

SUBSTANCE: invention relates to an aqueous-dispersion dye. The coating composition comprises the following components, wt.-%: epoxy-rubber adduct, 15-36; low-molecular epoxide resin, 10-18; surfactant, 0.5-0.65; biocide additive, 0.1-0.4; accessory substances, 0.1-0.8, and water, the balance. Epoxy-rubber adduct is prepared by co-condensation of epoxide resin and liquid nitrile rubber by functional groups, and 2.0-10.0 weight p. p. of hardening agent is taken per 100 weight p. p. of abovementioned composition. The composition can comprise additionally pigments and/or filling agent. Invention provides enhancing stability of covers against effect of petroleum products, acids, bases and gaseous oxides in simultaneous expanding functional possibilities for their using based on increasing the temperature range in applying on surfaces to be protected. Proposed composition is used in building in carrying out works associated with protection of metal, concrete, ferroconcrete and other surfaces against effect of corrosive environment for aims of priming and preparing protective-decorative covers.

EFFECT: improved and valuable properties of composition.

2 tbl, 6 ex

FIELD: wear-resistant protective polymer coats applied for protection against corrosion and mechanical wear; oil-and-gas industry; food-processing, pharmaceutical and other industries.

SUBSTANCE: proposed compound contains the following components, mass-%: 14-20 of epoxy diane resin used as binder; 24-28 of aminophenol hardener; 80-86 of resin - oxyline-5 or oxyline-6 used as modifying agent; 5-10 of aerosil used as fine-grained filler; 50-60 of mixture of graphite and molybdenum disulfide used as anticorrosive filler at mass ratio of graphite to molybdenum disulfide equal to 4:1 and solvent for obtaining the working viscosity. Proposed compound makes it possible to obtain tensile strength of 10.5-19.2 Mpa, relative elongation at rupture of 30.8-40.2 and friction coefficient in metal (Ct3) of 0.048-0.074 at 30C and 0.028-0.042 at 70C.

EFFECT: enhanced water and gasoline resistance.

3 cl, 2 tbl, 5 ex

FIELD: polymer materials.

SUBSTANCE: invention provides composition for producing polymeric protective coatings on various surfaces, including metal, concrete surfaces, structural members of conduits, metal units and assemblies in different technical areas, said coatings serving as barriers against attacks of various-type corrosive media. Composition contains following components, wt %: epoxide dian resin, 33.5-41.0; dibutyl phthalate and/or aliphatic epoxide resin DEG-1, 2.5-10.0; polyethylene-polyamine hardener, 4.0-6.5; plate filler in the form of andesite basalt scales with scale thickness 0.2 to 7.0 μm, 42.5-50.0, and, if necessary, Aerosil, 0-6.0, and/or organic solvent, 0-17.5.

EFFECT: reduced toxicity of composition, simplified preparation thereof, reduced barrier properties thereof, and extended functional destination.

2 tbl, 5 ex

FIELD: hydraulic insulating materials for hydraulic insulation and corrosion prevention of concrete, metal and reinforced concrete structural surfaces.

SUBSTANCE: claimed composition contains: butadiene-styrene thermoelastomer, diepoxy resin, filler (carbon black), solvent (toluene), pigment filler, containing aluminum and iron hydroxides and additionally indene-coumarone resin, waterproofing agent (liquid polymethylsiloxane), and stabilizer.

EFFECT: composition with high adhesion to concrete and metal surface and improved strength.

2 tbl

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