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Synthesis method for 4,4'-diamidodicyclohexylmethane glycidyl amine resin

A technology of diaminodicyclohexylmethane and tetraglycidol, which is applied in the field of 4,4'-diaminodicyclohexylmethane glycidylamine resin synthesis, which can solve problems such as poor weather resistance, accelerated product aging, and restricted application fields

Inactive Publication Date: 2019-02-12
杨记
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The molecular chain structure of 4,4'-diaminodiphenylmethane tetraglycidyl epoxy resin contains unsaturated benzene rings, which are rich in double bonds. It is easy to break in the harsh environment of the atmosphere or ultraviolet rays, and accelerates the aging of products, so it has weather resistance The disadvantage of poor performance restricts the outdoor application field

Method used

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  • Synthesis method for 4,4'-diamidodicyclohexylmethane glycidyl amine resin
  • Synthesis method for 4,4'-diamidodicyclohexylmethane glycidyl amine resin
  • Synthesis method for 4,4'-diamidodicyclohexylmethane glycidyl amine resin

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[0012] In order to further understand the present invention, the preferred hydrogenated bisphenol A formaldehyde epoxy resin synthetic embodiment of the hydrogenated novolak type epoxy resin of the present invention is described below in conjunction with the examples, but it should be understood that these descriptions are only in order to further illustrate the characteristics and advantages of the present invention, It is not a limitation on the claims of the invention.

[0013] The invention discloses a method for synthesizing 4,4'-diaminodicyclohexylmethane tetraglycidyl epoxy resin by etherification. Under the condition of nitrogen protection, 500g of epichlorohydrin and 0.4g of basic catalyst such as quaternary ammonium salt are mixed in Stir the reaction kettle evenly, add 100g of 4,4'-diaminodicyclohexylmethane dropwise at 35-50 degrees Celsius within 1 hour, then keep it at 35-50 degrees for 6 hours, and recover excess epoxy by decompression Propane, after recovering,...

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Abstract

The invention discloses an anti-yellowing high-glossiness 4,4'-diamidodicyclohexylmethane glycidyl amine resin structure form and a synthetic method thereof. According to the method, under the condition of nitrogen and no oxygen, 4,4'-diamidodicyclohexylmethane reacts with epoxy chloropropane, additive and alkali under 75 DEG C to 95 DEG C or 4,4'-diamidodicyclohexylmethane reacts with chloropropene under the action of alkali to obtain an intermediate, the intermediate and hydrogen peroxide are subjected to epoxidation reaction under the action of a catalyst, and thereby the 4,4'-diamidodicyclohexylmethane tetraglycidyl amine resin is obtained. The hydrogenated AG-80 is a tetrafunctional epoxy resin with high glossiness, high temperature resistance, yellowing resistance and low viscosity.

Description

technical field [0001] The invention relates to a method for synthesizing a yellowing-resistant and high-gloss 4,4'-diaminodicyclohexylmethane tetraglycidyl epoxy resin. Background technique [0002] General-purpose 4,4'-diaminodiphenylmethane tetraglycidyl epoxy resin grade AG-80 four-functional epoxy resin, with excellent physical and mechanical strength, chemical resistance, low shrinkage, good adhesion to carbon fiber Junction and other properties, as early as 1956, there was a patent for the synthesis of TGDDM. In 1972, Ciba-Geigy introduced TGDDM. It can withstand 200 degrees Celsius for 1,000 hours after curing with aromatic amines. All industries and emerging fields of the national economy, such as energy development, carbon fiber composite materials for wind power generation, aerospace, automotive carbon fiber lightweight, high-speed trains, electrical insulation materials, oil drilling industry, and ACCC composite optical fiber, are moving towards "serialization an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/10
CPCC08G59/10
Inventor 杨记
Owner 杨记
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