SU1321730A1 - Epoxy composition - Google Patents

Abstract

This invention relates to epoxy compositions used in the manufacture of fiberglass. The invention allows to increase the heat resistance, hardness, strength characteristics and reduce water absorption of the epoxy composition, including epoxy resin (100 mas. Hours), diethylene-triamine 10-20 mas. Hours, cyclic thioglycidoxyme 10-30 mas. Hours, due to the additional content of dimethylglyoxime diacryl ester in the amount of 3-5 mash. 2 tab.

Description

113217302

The invention relates to an epoxide which, after vacuum distillation, uses a composition that produces, kip,} N ° C / 1 () mm org, fiberglass plastics.

The aim of the invention is to increase heat resistance, hardness, strength characteristics and reduce water absorption.

Preparation of epoxy composition.

In a heat chamber at 100-120 ° C fO, the epoxy diane resin is melted and loaded into a reactor equipped with a steam jacket and a stirrer; The amine hardener, diethylene triamine, is introduced and mixed thoroughly in a well-soluble acetone mixture for 10-15 minutes. Alcohol (50-50), dimethylsulfoxide, and the modifier, cyclic thioglycetone-acetonitride, are then added. It is difficult to dissolve in bendoxim and diacrylic ester of dimethylglycol, hexane, petroleum ether, oxma and mix for Examples of formulations: the composition is pre-20 minutes until a homogeneous mass is obtained. 20 are put in table. 1, their properties are given

Diacrylate ether dimethylglyoxime in the table. 2. formulas

Claims (1)

SNO-C C CH i Formula of the invention  II IIJ 25 109 ° C / 2 mmHg 18.6 g (83 ° from theory) of dimethylglyoxime diacrylic ester are obtained. d 1.0013, 7.1 ° 1.4834. Found,%: C 53.59; 53.58; H 5.38; 5.39; N 12, 58; 12.56. C .. Calculated,%: C 53.57; H 5.36; N 12.55. Molecular weight: found 224, 223; calculated 224. Diamine ester dimethylglyoxime H2C HC-C-0-N 14 0-C-CH CH oh oh An epoxy composition comprising an epoxy diane resin, diethylenetriamine and cyclic thioglycidoxyme, o t — is prepared according to the following procedure. It is due to the fact that, from the TSV round bottom flask with the capacity to increase heat resistance, solid-1.0 l, equipped with a stirrer, reverse 30 strength characteristics and lowering cooler, addition funnel or water absorption, additionally and with a thermometer, load the solution, contains diacrylic dimethyl ether - 11.6 g (0.1 g-mol) of dimethylglyoxime glyoxime of the formula in 100-150 ml of absolute methanol and metallic sodium 8 g (0.2 g-mol). 35 Heat the reaction mass to 35-40 ° C and with stirring, 38.1 g (0.2 g-mol) of acrylic acid chloride are added dropwise. Then the reaction mass is cooled to 15–20 ° C and maintained at 40 with the following ratio of components.  11 11 H2C HC-C-0-K N-0-C-CH CH2 oo It is kept at this temperature for 2-3 hours with constant stirring, after which the reaction mixture is и ilt, diluted with water three times in 100 ml and extracted five times in 100 ml with sulfuric ether. The ether layer is dried with anhydrous sodium sulfate and the ether is distilled off under vacuum. A light yellow liquid remains in the flask. which, after vacuum distillation, has t, kip,} N ° C / 1 () mm reg.st ,, it dissolves well in a mixture of acetone and alcohol (50-50), dimethyl sulfoxide and acetonitride. It is difficult to dissolve in benzene, hexane, petroleum ether. Examples of compositions: the compositions are presented in Table. 1, their properties are given 109 ° C / 2 mmHg 18.6 g (83 ° from theory) of dimethylglyoxime diacrylic ester are obtained. d 1.0013, 7.1 ° 1.4834. Found,%: C 53.59; 53.58; H 5.38; 5.39; N 12, 58; 12.56. C .. Calculated,%: C 53.57; H 5.36; N 12.55. Molecular weight: found 224, 223; calculated 224. Diamine ester dimethylglyoxime In addition to heat resistance, solidity, strength and water absorption, it additionally contains a dimethylglyoxime diacrylic ester of the formula with the following component ratio CH.  11 11 H2C HC-C-0-K N-0-C-CH CH2 oo 45 Comrade, Macy .: Epoxy Diane Diethylenetriamine Cyclic Thioglycidioxime Diacrylate ether dimethylglyoxime specified formula Heat resistance, with Brinell hardness, MPa Water absorption, z, oi-10 (in cold water) Water absorption,% .f if 10 (at boiling) Destructive stresses during stretching, MPa, 6 x 10-2. with bending, MPa, 6x10- Specific impact viscosity, MPa Compiled by A.Ternovykh Editor N.Egorova Tehred A.Kravchuk Proofreader I.Erdeyi Order 2721/18 Circulation 437Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 Table 1 185 195 200 205 205 185 185 350 350 380 380 350 290 298 145 138 129 125 125 144 145 168 163 155 150 150 168 168 4.3 4.8 5.0 5.0 4.6 4.5 4.5 4.8 4.8 5.0 5.0 4.6 4.5 4.5 39 40 40 40 40 39 35