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Novel synthesis method of glycidyl amine epoxy resin

A technology of glycidyl amines and epoxy resins, which is applied in the direction of organic chemistry, can solve the problems of many reaction side reactions and high chlorine content in products, and achieve the effects of low chlorine content, high yield and purity, and convenient operation

Inactive Publication Date: 2013-09-11
NANTONG SYNASIA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although this method can be effectively used in the synthesis of glycidylamine-based resins, there are many problems in the synthesis process, such as: there are many side reactions, and the obtained product has a high chlorine content.

Method used

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  • Novel synthesis method of glycidyl amine epoxy resin
  • Novel synthesis method of glycidyl amine epoxy resin
  • Novel synthesis method of glycidyl amine epoxy resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Synthetic process of triglycidyl p-aminophenol (DGGAP).

[0024] Triglycidyl p-aminophenol, also known as p-aminophenol epoxy resin or triglycidyl p-aminophenol, is an epoxy resin containing p-aminophenol structure. Reddish-brown liquid, viscosity (Pa·s) 1.30-2.30, epoxy value 106-115, cured product tensile strength 65.7MPa, flexural strength 142.2MPa, heat distortion temperature 202°C, volume resistivity 3×1016Ω·cm. It is prepared by reacting p-aminophenol with epichlorohydrin. Mainly used as glass cloth laminates, glass fiber winding products, aerospace equipment, sports equipment, casting products of micro-motor parts, sealing, high temperature resistant adhesives, etc. Its structural formula is as follows:

[0025]

[0026] Triglycidyl p-aminophenol (DGGAP) adopts the following process route: p-aminophenol and propylene chloride are used to obtain intermediates under the action of alkali; intermediates and hydrogen peroxide undergo epoxidation reacti...

Embodiment 2

[0032] Example 2 N,N,N,N,-tetraepoxypropyl-4,4-diaminodiphenylmethane

[0033] N,N,N,N,-tetraepoxypropyl-4,4-diaminodiphenylmethane (TGDN) is a yellow or brown viscous liquid, which is a high-performance matrix resin for composite materials. This type of glycidylamine resin is characterized by good wettability to glass fiber and carbon fiber, and the cured product has good heat resistance and nuclear radiation resistance, so it is mainly used in aerospace and military industries, such as rocket auxiliary engines. Winding molding shell, etc. The presence of phenyl structural units in its structure and its high epoxy functional group lead to high cross-linking density after curing of the resin. Its structural formula is as follows:

[0034]

[0035] TGDN was first developed by Swiss CIBA-GETGY company, its company brand is AralditeMY720, and the domestic similar product brand is AG-80.

[0036] N,N,N,N,-tetraepoxypropyl-4,4-diaminodiphenylmethane (TGDN) adopts the foll...

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Abstract

The invention provides a novel synthesis method of glycidyl amine epoxy resin, which comprises the following steps of: preparing an intermediate by a reaction of the raw materials organic amine and propylene chloride; performing an oxidation reaction of the intermediate and hydrogen peroxide under the effect of a catalyst; and after the reaction is over, performing filtration, washing and reduced-pressure distillation to obtain the product. The synthetic alkali of the intermediate is carbonate or the hydroxide of an alkali metal; the reaction temperature is 20-80 DEG C, and the reaction solvent is haloalkane; and in the oxidation reaction, the reaction temperature is 20-100 DEG C, and the reaction time is 1-6 hours. The method provided by the invention has the advantages of high yield and purity of product and low chlorine content and is convenient to operate and suitable for industrial production.

Description

technical field [0001] The invention relates to a preparation method of epoxy resin, in particular to a synthesis method of novel glycidyl ring family epoxy resin. Background technique [0002] Epoxy resin is an important thermosetting resin variety, which has excellent physical and mechanical properties, electrical insulation properties, chemical corrosion resistance, heat resistance and bonding properties. The epoxy resin adhesive prepared with it is known as "universal glue". It is widely used in chemical industry, light industry, water conservancy, transportation, machinery, electronics, home appliances, automobiles, aerospace and other industrial fields. The advantages of glycidylamine epoxy resins are multi-functionality, high epoxy equivalent, high cross-linking density, and significantly improved heat resistance. Glycidylamine epoxy resins have been widely used in the field of composite materials in recent years, and are widely used in aerospace, light-curable ink a...

Claims

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Application Information

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IPC IPC(8): C07D303/28C07D303/36C07D301/12
Inventor 邱子皓穆学军陈志军程恩志
Owner NANTONG SYNASIA NEW MATERIAL CO LTD
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