Polymer composition

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

 

The claimed invention relates to the field of polymeric compositions for paints, adhesives and coatings.

Known composition consisting of epoxy resin, anhydrous hardener and accelerator (A.S. No. 857184, MKI C 08 L 63/00, publ. 25.08.81).

The main disadvantage of this composition is the use of large amounts of hardener and a long curing time.

Known polymer composition consisting of epoxy Dianova resin, anhydrous curing agent and modifier - diglycidylether ether xilitla (A.S. No. 749871, MKI C 08 L 63 / 02, 08 To 5/15, publ. 23.07.80).

The main disadvantage of this composition is a long curing time.

Known polymer composition comprising epoxy Dianova resin, anhydrous hardener and filler, microanatomical - Aerosil and the curing catalyst - diabetogenic zeolite (A.S. No. 585196, MKI C 08 L 63/00, publ. 26.12.77).

The main disadvantage of this composition is a long curing time.

Known epoxy composition comprising an epoxy Dianova resin, anhydrous curing agent and modifier - diglycidyl ether xylitol (A.S. No. 630271, MKI C 08 L 63/02, C 08 G 59/38, publ. 01.11.78).

The main disadvantage of this composition is a long curing time.

Known composition, comprising an epoxy Dianova resin, anger the command hardener and a saturated polyester - oxidized polyethylene wax (A.S. No. 1141107, MKI C 08 L 63/02, publ. 23.02.85).

The main disadvantage of this composition is a long curing time and high water absorption.

Known polymer composition comprising epoxy Dianova resin, anhydrous hardener and accelerator - diphenylamino-3-allyloxy-propanol-2 (A.S. No. 979448, MKI C 08 L 63/02, C 08 G 59/42, publ. 07.12.82).

The main disadvantage of this composition is a long curing time.

The closest is a polymeric composition comprising an epoxy resin, a hardener, which is isomethyltetrahydrophthalic anhydride, modifier (diglycidylether) and accelerator (A.S. No. 737424, MKI C 08 L 63/00, publ. 30.05.80).

The disadvantages of this arrangement is the high water absorption and a long curing time.

Object of the present invention to provide polymer compositions having low water absorption, and reduce the curing time.

During implementation of the invention receive the following technical result:

- reduced water absorption of the composition;

- decreases the curing time.

This technical result is achieved by the fact that:

polymer composition for paints, adhesives and coatings, including epoxy Dianova resin ED-20, anhydrite atverti the spruce, the modifier and the accelerator, characterized in that as anhydrite hardener composition comprises maleic anhydride, as a modifier - oil slurry consisting of hydrocarbon fractions with a boiling range from 293 to 470°as accelerator - distillation waste from the production of aniline with aniline content 15-18 parts by weight of the next sootnoshenii components, parts by weight:

Epoxy Dianova resin ED-20100
Maleic anhydride40-80
The above oil sludge10-30
The above distillation waste from the production of aniline1-3

The use of distillation waste of aniline in the composition as an accelerator reduces the curing time, because it contains a cyclic aromatic amines and resinous compounds of complex composition also containing amine groups. When interacting distillation waste of aniline with epoxy Dianova resin ED-20 is its cure.

The use of oil sludge accelerates the curing of the composition as maleic anhydride, interacting with the water contained in the oil sludge is converted to the corresponding acid, quickly about veredus epoxy resin, in addition, the hydrocarbons contained in the oil sludge, reduce water absorption of the composition.

The claimed range of components is due to the following.

Reducing the number of distillation waste of aniline less than 1 parts by weight increases the cure time of the composition. When the number of still waste production of aniline is more than 3 parts by weight increases the water absorption of the composition and deteriorate the mechanical properties.

Reducing the number of oil sludge is less than 10 parts by weight increases the curing time and water absorption. When the number of oil sludge of more than 30 parts by weight deteriorates the adhesion and mechanical properties.

The composition is prepared as follows.

Epoxy Dianova resin ED-20 is heated to 70-80°With, then add maleic anhydride and stirred to dissolve the anhydride. Further, when mixing the injected oil sludge and waste production waste aniline.

The composition of the distillation waste of aniline (TR production of aniline CJSC "Orgsintez" , Volzhsky, stage of selection commodity aniline), parts by weight:

Aniline15-18
Cyclohexylamin0-10
Toluidine2-4
Diphenylamine3-20
ethenediamine 1-3
Oh, p-aminophenols1-6
Caustic soda1-3
High boiling, high molecular weight resinous substance6 : 45 a.m.

Sludge consists of hydrocarbon fractions with a boiling range from 293 to 470°C.

The invention is illustrated by the following examples.

Example 1.

To 100 kg of epoxy Dianova resin ED-20, heated to 70-80°add 40 kg of maleic anhydride and stirred to dissolve the anhydride. Then under stirring introduced 10 kg of oil sludge and 1 kg of distillation waste production of aniline.

Example 2-5 are carried out analogously to example 1 by changing the amount of oil sludge, maleic anhydride and distillation waste production of aniline. Data on the composition and properties of the compositions are given in the table.

Tests for water absorption was carried out according to GOST 4650-80, adhesion to steel according to GOST 15140-78.

Determination of the degree of curing. Pre-weighed powder samples of the hardened compositions in packages of filter paper was placed in the apparatus of Sexlet and were extracted with acetone for 6 hours. Next, the extracted samples from the apparatus and dried to constant weight. The degree of cure was determined by the following formula:

where a is the weight nextreaming of obraza, b - weight of sample after extraction and drying.

Table
ComponentsThe content of components, parts by weight
In the proposed method exampleThe placeholder
123456
Epoxy Dianova resin ED -2010010010010010070
Oil sludge1030202020-
Maleic anhydride4040608040-
Distillation waste from the production of aniline11231-
Isomethyltetrahydrophthalic anhydride-----66,5
Diglycidylether-----30
Accelerator pack - 606/2 -----0,5
Water absorption, %0,060,010,010,010,010,18
The cure time, min6030302045600
Adhesion to steel kgf/cm2(method of separation)200210210230210-
The degree of cure, %10092929590-

The table shows that the absorption and the curing time this polymer composition is superior to the prototype, and has good adhesive properties.

Polymer composition for paints, adhesives and coatings, including epoxy Dianova resin ED-20, anhydrite curing agent, modifier and accelerator, characterized in that as anhydrite hardener composition comprises maleic anhydride, as a modifier - oil slurry consisting of hydrocarbon fractions with a boiling point from 293°470°as accelerator - distillation waste from the production of aniline with aniline content 15-18 parts by weight, the next time the ratio of the attachment of components, parts by weight of:

Epoxy Dianova resin ED-20100
Maleic anhydride40-80
The above oil sludge10-30
The above distillation waste from the production of aniline1-3



 

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6 ex

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2 tbl, 6 ex

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3 cl, 2 tbl, 1 ex

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7 cl, 3 tbl, 1 ex

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6 cl, 2 tbl, 13 ex

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2 tbl, 13 ex

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2 tbl, 4 ex

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2 tbl, 17 ex

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2 tbl, 6 ex

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2 tbl, 13 ex

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2 tbl, 7 ex

FIELD: polymers.

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6 cl, 2 tbl, 13 ex

FIELD: polymer materials.

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EFFECT: improved mechanical characteristics and damping properties.

2 tbl, 13 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: 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: 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: 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: insulation materials.

SUBSTANCE: method of preparing insulation compound, which can be used for impregnating and pouring high- and low-voltage components of electrical and radio equipment, transformers, and throttle valves, comprises mixing at temperature 50-60°C resin having molecular weight 1000-6000 with phosphorus-containing modifier, in particular triglycidyl phosphate or diglycidyl methyl phosphate, or diglycidyl methyl phosphonate, after which is added stoichiometric amount of hardener, in particular 4,4'-diaminodiphenylmethane or 4,4'-diaminodiphenyl sulfone, or 4,4'-diaminodiphenyl oxide.

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

2 tbl, 17 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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