Epoxide composition

FIELD: coating compositions.

SUBSTANCE: invention relates to a method for preparing composition used for paint and varnish coatings. The composition comprises the components taken in the following ratio, mas. p. p.: epoxy diane oligomer, 50; amine hardening agent, 5.9-11; xylene, 25; butyl acetate, 10; acetone, 15; polyfluorinated alcohol-telomer of the formula: H(CF2CF2)nCH2OH wherein n = 3, 10-15. Low-molecular epoxy diane oligomer of molecular mass 400 Da, not above, and with epoxide number 21-22% is used as epoxy diane oligomer. Invention provides enhancing adhesion, hardness, impact resistance and diminishing water absorption of coatings. Proposed composition can be used in making pouring floors, pouring compounds and for other aims.

EFFECT: improved and valuable properties of composition.

2 tbl, 14 ex

 

The invention relates to compositions for coatings based on low-molecular Dianova epoxy oligomers and is designed to produce coatings and can also be used in the manufacture of flooring, caulking compounds and other purposes.

It is known that low molecular weight Dianova epoxy oligomers (e.g., oligomer ED-20, GOST 10587-84), curable aliphatic polyamines: Diethylenetriamine (DETA), Triethylenetetramine (THETA), polyethylenepolyamine (Pepa), form polymers spatial structure with a high degree of crosslinking.

However, their disadvantage is the poor plastic-elastic properties in the glassy state, i.e. in the operating conditions [1]. The solutions of these oligomers in the mixture of organic solvents are the basis of compositions for coatings for various purposes: anti-corrosion, electrical and others [1, 2]. The composition may also include pigments and fillers, various additives, which give the special properties coatings and plasticizers (usually platogo type), which increase the elasticity of the songs, but at the same time reduce the hardness and increase the absorption, which reduces the protective properties of the coatings [2, 3].

The technical problem on which this invention is directed, is to improve the AI plastic-elastic properties of such compositions while increasing hardness, resistance to impact and reduce the water absorption of the coating.

As a prototype of the selected patent RU 2174135, C1, 27/09, 2001, describing the composition of the amine curing comprising in wt.%:

- 15,0-27,0 epoxygenase oligomer;

- 2,2-7,8 amine hardener;

- 20,0-38,0 organic solvent R-5 (30% butyl acetate, 30% acetone, 40% of xylene).

The composition is intended to obtain coatings on rusty surfaces, which in its composition, in addition to this framework consists of pigments and fillers, as well as a special rust converters and plasticizers platogo type.

The disadvantage of this composition are poor physico-mechanical properties (impact resistance, elasticity), as well as lack of firmness and significant swelling properties in water, especially in the presence of platogo plasticizer.

The proposed composition, ensuring the achievement of the technical result, devoid of these shortcomings. It differs from the well-known fact that as Dianova epoxy oligomer used low-molecular Dianova epoxy oligomer was not higher than 400 and an epoxy number of 21-22% and further comprises a polyfluorinated alcohol-telomers of the formula H(CF2CF2)nCH2OH, where n=3 (THE 301-14-1-89), as well as different quantitative content epoxygenase oligomer, b is dilatata, xylene in the organic solvent. In the manufacture of compositions for special purposes on this basis, it may contain in the composition of pigments, fillers, and required special additives.

Included in its membership perverser-telomere, in contrast to the above plasticizers, reduces water absorption, improves elasticity and increases the hardness of the coatings (unexpected effect) with greater efficacy plasticizing action. He is not antiproliferation. The glass transition temperature of cross-linked polymer is reduced in proportion to the alcohol content of telomeres in the system (up to content 20%).

The optimal composition (as it follows from the data table. 1 and 2) in the mass. including:

Low-molecular Dianova epoxy oligomer with mol. weight of not higher than 400 and an epoxy number of 21-22%50
Xylene25
Butyl acetate10
Acetone15
Polyfluorinated alcohol-telomere
formula h(CF2CF2)nCH2OH, where n=310-15
Amine hardener5,9-11

As a low molecular weight epoxy Dianova oligomer with the decree of nami above characteristics can be used epoxy oligomer ED-20. When trying to use more high-molecular oligomers such as e-40 e-41, coating defects are formed in the form of waves.

These solvents in an appropriate amount to provide complete dissolution of a given amount of epoxy oligomer to the optically transparent state. To provide the desired viscosity when applying the prepared composition may optionally be mixed with any common in the coatings industry complex solvent: 646, R-5, R-3, R-4, or their equivalents.

Specified polyfluorinated alcohol-telomere can be used within 10-15 mass in composition with the same effect (table. 1, 2).

As amine curing agents are aliphatic polyamine: DEATH metal, PEPA, THETA in equimolecular relative to the epoxy oligomer amount (THETA - 7, PET - 11, DETA - 5,9).

Technology of preparation of the composition according to the invention is as follows.

Preparing a mixture of solvents (mass. PM): xylene - 35; butyl acetate - 10; acetone - 15. Under stirring, 50 mass. including the corresponding epoxy oligomer. The mixture was stirred until complete dissolution. Then enter the specified number of polyfluorinated alcohol-telomere and continue to mix for at least 30 minutes. The composition may contain pigments, fill the Lee and modifying additives. In this case, the resulting composition is loaded into a ball mill and grind with porcelain balls for 32-48 academic hours. The resulting composition is combined with the corresponding amount of amine hardener, bring to working viscosity and applied to the surface. The duration of curing of the coating 7 days at 20°or 2 hours at 120°C.

For comparative tests of different versions of the composition used samples of steel 08KP size 50×150. Preparing the composition according to the invention, and in accordance with the composition of the prototype. The composition was diluted with a solvent 646 to working viscosity 28-30 C.

To them was added the appropriate amount of amine hardener (THETA, DETA, PEPA). The coating was applied by spraying on fat-free white spirit plates of steel 08KP for determination of physical and mechanical properties and on the steel foil for testing water absorption by the gravimetric method. Curing of coatings was carried out at 120°within 2 hours.

The thickness of the coatings was 25-30 microns.

Table 1 presents the compositions, and table 2 - properties of coatings.

These tables confirm the optimal composition of the claimed compositions and show that the coatings according to the invention is superior to the prototype in terms of hardness, elasticity, resistance to shock. They have a better hell is Asia, as well as lower water absorption, especially in comparison with samples containing dibutyl phthalate.

The COMPOSITIONS

Table 1
ComponentsAccording to the inventionControl samplesThe placeholder
1234567891011121314
Resin ED-205050505050505050505015271527
Butyl acetate10101010101010101010611,4611,4
Xylene25252525252525252525815,281,2
Acetone15151515151515151515611,4611,4
Alcohol-telomere n=310101515159991717----
THETA7--7-7--7-----
PEPA-11--11-11--113,35,943,35,94
DEATH metal--5,9----5,9------
Dibutyl----- ------2,58

PROPERTIES of COATINGS

Table 2
№ / №The compositionAdhesion score, GOST 15-140-70The strength of the coating upon impact,see HOST-73Hardness, c.u., GOST-67Water absorption, %, through the nightMoisture In hydrostat at 55°C and relative humidity of 97%
1Resin ED-20+ amine resp.1300,923.948
2Resin ed-20+3 M.Ch. FPO+ amine resp.1300,940,9872
3Resin ED-20+5 M.Ch. FPO+ amine resp.1300,950,6296
4Resin ED-20+10 mass FPO+ amine resp.1300,960,6196
5.Resin ED-20+15 mass FPO+ amine resp.1300,950,6296
6Resin is D-20+20 mass. including FPO+ amine resp.1300,940,6196

Sources of information

1. Lee H., Neville K. reference guide for epoxy resins // M, Energy, 1973, S. 73.

2. Chernin I.Z. and other Epoxy polymers and compounds // M, Chemistry, 1982, 230 S.

3. Barshteyn R.S., Kirillovich VI, J.E. (Plasticizers for polymers // M, Chemistry, 1982, 197 S.

Composition for coating comprising epoxygenase oligomer, an amine hardener and a mixture of xylene, butyl acetate and acetone as organic solvent, characterized in that as epoxygenase oligomer contains low-molecular epoxygenase oligomer with a molecular weight of not higher than 400 and an epoxy number of 21-22%, and additionally polyfluorinated alcohol-telomers of the formula H(CF2CF2)nCH2OH, where n=3, the following ratio of components, parts by weight:

The above epoxygenase
oligomer50
Xylene25
Butyl acetate10
Acetone15
The above polyfluorinated alcohol-telomere10-15
Amine hardener 5,9-11



 

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Polymer composition // 2277567

FIELD: polymer materials.

SUBSTANCE: polymer composition for varnishes, adhesives, and coatings is constituted by, weight parts: epoxide dian resin ED-2, 100; maleic anhydride as hardener, 40-80; oil slime as modifier, 10-30; and aniline bottom waste with aniline content 15-18 wt parts, 1-3. Oil slime is composed of hydrocarbon fractions with boiling temperature from 293 to 470°C.

EFFECT: reduced water content and curing time of polymer composition.

1 tbl, 6 ex

FIELD: building materials.

SUBSTANCE: invention relates to a method for preparing an aqueous epoxide corrosion-stable priming used for protection against corrosion and no containing hexavalent chrome compounds. Priming comprises aqueous epoxide compound based on bisphenol A diglycidyl ester, hardening agent and chromate-free pigment inhibiting corrosion. Hardening agent is taken among the group comprising aqueous modified adducts of amines or polyamidoamines decreasing the water content. Chromate-free pigment inhibiting corrosion comprises chromate-free pigment additive inhibiting corrosion that is taken among the group comprising mixtures of cerium molybdate with bismuth vanadate, cerium molybdate with strontium tungstate, cerium phosphate with strontium tungstate, bismuth vanadate with bismuth molybdate and strontium tungstate, and their mixtures also. Pigment-filling agents and hydrophobic hardening agent are added to the priming composite for enhancing waterproofness and corrosion resistance. Invention provides excluding the negative effect of hexavalent chrome on environment objects and human body.

EFFECT: improved and valuable properties of priming.

4 ex

FIELD: polymeric materials.

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EFFECT: improved and valuable properties of material.

2 tbl, 13 ex

FIELD: building materials.

SUBSTANCE: invention relates to a method for preparing the coating composition based on modified epoxy resin used in protection of building constructions, for example, as a component for pouring floorings. The composition comprises the following ratio of components, wt.-%: epoxy diane resin, 55.0-63.0; amine hardening agent as a mixture of isophoronediamine, 13.0-20.3, and one of amine taken among methaxilylenediamine, 7.0-9.0, or diethylenetriamine, 5.0-6.0, or triethylenetetraamine, 5.5-6.5 and tris-(dimethylaminomethyl)phenol, 2.0-2.7, as adduct with laprolat-803, 6.5-10.5, and mixture of dioxane alcohols and their high-molecular esters (EDOS). Laprolat-803 represents polyoxypropylenetriol tricyclocarbonate propyl ester. Invention provides hardness and wear-resistance of coating.

EFFECT: improved and valuable properties of composition.

2 tbl, 7 ex

FIELD: polymers.

SUBSTANCE: invention relates to a method for preparing abrasion-resistant protective polymeric composition. The composition comprises the following components, mas. p. p.: epoxydiane resin, 100; modifying agent, 30-60; organosilicon amine hardening agent, 10-20; scaly filling agent, 40-80; aerosil and/or microtalc, 10-20 as a finely divided filling agent. Resins ED-18, ED-20 and E-41 are used as epoxydiane resin. Low-molecular butadiene-nitrile rubber or polysulfide rubber, or acrylic resin is used as a modifying agent. Organosilicon amine hardening agent represents aminosilane or aminosiloxane that is used in common with polyethylene polyamine in their mass ratio = 1:1. The condensation product of polyethylene polyamine with trimerized fatty acid from flax or tall oil can be added to the hardening agent composition. Scaly silicon representing waste in manufacture of crystalline silicon for preparing organosilicon compounds is used as a scaly filling agent. Pigments can be added to the composition for coloring. Invention provides preparing the composition showing high adhesion to metals, for example, to steel and to concrete, high mechanical strength, elasticity, abrasion-resistance, atmosphere-resistance, resistance to hot water effect and longevity. Proposed polymeric composition can be used for protection of metallic and concrete constructions, for floor covering and so on.

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6 cl, 2 tbl, 13 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to preparation of vibration-absorbing composition that can be used in a variety of industrial fields, in particular to mount turbogenerators, marine engines, hoists, and other equipment. Composition contains, wt % 4,4'-isopropylidenediphenol epoxide resin 20.7-40.8, active diluent 5,8-10.2, mineral filler 41,8-62.4, and amine hardener 7.2-11.1, said mineral filler being wollastonite with at least 30% needle fraction wherein ratio of needle length (not larger than 63 μm) to needle thickness is 5:1.

EFFECT: improved mechanical characteristics and damping properties.

2 tbl, 13 ex

FIELD: building materials.

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EFFECT: improved, enhanced and valuable properties of composition.

2 tbl, 4 ex

FIELD: organic chemistry, in particular composition for corrosive and chemically stable coats.

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EFFECT: undercoat composition of high corrosion resistance, strength and lower cost.

2 tbl, 1 ex

FIELD: method for production of epoxypolymer solution useful sealing material in building industry.

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EFFECT: epoxypolymer solution with improved operating characteristics and reduced cost.

5 tbl, 8 dwg

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EFFECT: waterproofing composition with increased adhesion to concrete surface.

5 ex, 1 tbl

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2 tbl

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EFFECT: enhanced protective properties.

2 tbl, 4 ex

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EFFECT: waterproofing composition of improved adhesion to concrete surface.

5 ex, 1 tbl

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EFFECT: reduced viscosity of compound, enhanced insulation and electric-strength properties, and simplified preparation procedure.

2 tbl, 17 ex

FIELD: building industry, in particular waterproofing composition useful as waterproofing material to seal corrugation and road crack.

SUBSTANCE: claimed contains (mass parts): epoxy dianic resin 100; polyethylene polyamine 5-1`0; oil residue 10-30; bottoms from aniline production comprising 15-80 mass parts of aniline 5-20; and gravel 300-600. Mass ratio of polyethylene polyamine and bottoms from aniline production is 1:(0.5-4). Oil residue consists from hydrocarbon cuts with boiling point from 2930C to 4700C.

EFFECT: waterproofing composition with increased adhesion to concrete surface.

5 ex, 1 tbl

FIELD: method for production of epoxypolymer solution useful sealing material in building industry.

SUBSTANCE: claimed epoxypolymer solution contains (mass parts): epoxydyanic resin 100; polyethylene polyamine 15; plasticizer 50; filler 200. Waste from epoxide resin production is used as plasticizer, and waste from haydite production is used as filler. Epoxypolymer solution of present invention is useful, for example as sealing and waterproofing material in rebuilding of damaged concrete and reinforced concrete constructions.

EFFECT: epoxypolymer solution with improved operating characteristics and reduced cost.

5 tbl, 8 dwg

FIELD: organic chemistry, in particular composition for corrosive and chemically stable coats.

SUBSTANCE: invention relates to alkyd-epoxy undercoat compositions based on debris from phthalic anhydride and epoxy resin distillation. Claimed composition contains (mass %) epoxydianic resin 45.0-45.4; modified alkyd resin obtained by stepwise esterification of sun flower oil, polyhydric alcohol and slop from phthalic anhydride distillation with grain-size classification of 0.05-1.1 mm and phthalic anhydride content of 37-80 % - 36.0-36.3; filler 4.9-5.5; pigment 3.5-3.8; balance: solvent; and over 100 mass % of composition it contains polyethylene polyamine as curing agent 15, and cobalt naphthenate as curing catalyst 1.8. Composition of present invention is useful in coating of metal parts and various constructions.

EFFECT: undercoat composition of high corrosion resistance, strength and lower cost.

2 tbl, 1 ex

FIELD: building materials.

SUBSTANCE: invention relates to a method for preparing compositions used for covers, among them to corrosion-water-fuel-resistant covers by nonferrous metals, concrete and ceramics in moisture and aggressive media. The composition comprises the following mass ratio of the parent components, %: film-forming mixture comprising oligomeric carboxyl-containing butadiene-nitrile rubber, 10.9-28.1 and epoxy-diane oligomer, 7.0-10.9 in the mass ratio of epoxy-diane oligomer and rubber from 19.9:80.1 to 50.0:50.0; hardening agent, 5.9-18.1; solvent, 41.0-51.1; filling agent, 1.4-1.6, and pigment, 13.6-16.4. Film-forming agent is heated preliminary at temperature 90-120°C to the conversion degree of carboxyl groups 8.8-25.2%. Mixture of γ- and β-aminopropyltriethoxysilanes is used as a hardening agent in the mass ratio = (67-75):(25-33), or 45-55% solutions of products of hydrolytic condensation of mixture of γ- and β-aminopropyltriethoxysilanes in cyclohexanone or toluene. Invention provides enhancing the strength of cover in direct/reverse impact, adhesion in moisture media, resistance to defoliation in storage and bending, to reduce swelling capacity in water.

EFFECT: improved, enhanced and valuable properties of composition.

2 tbl, 4 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to preparation of vibration-absorbing composition that can be used in a variety of industrial fields, in particular to mount turbogenerators, marine engines, hoists, and other equipment. Composition contains, wt % 4,4'-isopropylidenediphenol epoxide resin 20.7-40.8, active diluent 5,8-10.2, mineral filler 41,8-62.4, and amine hardener 7.2-11.1, said mineral filler being wollastonite with at least 30% needle fraction wherein ratio of needle length (not larger than 63 μm) to needle thickness is 5:1.

EFFECT: improved mechanical characteristics and damping properties.

2 tbl, 13 ex

FIELD: polymers.

SUBSTANCE: invention relates to a method for preparing abrasion-resistant protective polymeric composition. The composition comprises the following components, mas. p. p.: epoxydiane resin, 100; modifying agent, 30-60; organosilicon amine hardening agent, 10-20; scaly filling agent, 40-80; aerosil and/or microtalc, 10-20 as a finely divided filling agent. Resins ED-18, ED-20 and E-41 are used as epoxydiane resin. Low-molecular butadiene-nitrile rubber or polysulfide rubber, or acrylic resin is used as a modifying agent. Organosilicon amine hardening agent represents aminosilane or aminosiloxane that is used in common with polyethylene polyamine in their mass ratio = 1:1. The condensation product of polyethylene polyamine with trimerized fatty acid from flax or tall oil can be added to the hardening agent composition. Scaly silicon representing waste in manufacture of crystalline silicon for preparing organosilicon compounds is used as a scaly filling agent. Pigments can be added to the composition for coloring. Invention provides preparing the composition showing high adhesion to metals, for example, to steel and to concrete, high mechanical strength, elasticity, abrasion-resistance, atmosphere-resistance, resistance to hot water effect and longevity. Proposed polymeric composition can be used for protection of metallic and concrete constructions, for floor covering and so on.

EFFECT: improved and valuable properties of composition.

6 cl, 2 tbl, 13 ex

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