Anacardol glycidyl ether modified mixed amine hardener and preparation method thereof

A technology of glycidyl ether and cardanol, applied in chemical instruments and methods, preparation of organic compounds, preparation of aminohydroxy compounds, etc., can solve problems such as poor performance, unfriendly environment, and high requirements for construction environment, and reduce toxicity and volatility, improve paint film disease, reduce costs

Inactive Publication Date: 2013-06-12
上海美东生物材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of cardanol glycidyl ether modified mixed amine curing agent, described this cardanol glycidyl ether modified mixed amine curing agent will solve the aliphatic polyamine curing epoxy resin in the prior art Poor performance, high requirements on the construction environment, easy to cause paint film disease, affect the health of workers and technical problems that are not friendly to the environment

Method used

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  • Anacardol glycidyl ether modified mixed amine hardener and preparation method thereof
  • Anacardol glycidyl ether modified mixed amine hardener and preparation method thereof
  • Anacardol glycidyl ether modified mixed amine hardener and preparation method thereof

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Embodiment 1

[0030] Add 28 parts of mixed amines into the reaction kettle, and slowly add 72 parts of cardanol glycidyl ether dropwise at 60°C under stirring conditions of 600 to 800 rpm, and complete the dropwise addition within 2 hours. Stir and disperse for 3- After 4 hours, the final product was obtained.

[0031] Further, the mixed amine is composed of N-aminoethylpiperazine, 2-aminoethanol, polyethylenepolyamine and triethylenetetramine, and the N-aminoethylpiperazine, 2-aminoethanol, poly The weight ratio of ethylene polyamine to triethylenetetramine is 10-12:33-36:30-33:19-21.

[0032] The listening plate is polished with sandpaper, cleaned with xylene solvent, degreased and degreased, and dried.

Embodiment 2

[0034] The cardanol glycidyl ether modified mixed amine curing agent of the present invention is synthesized from cardanol glycidyl ether and mixed amine components, and the weight ratio of the cardanol glycidyl ether to the mixed amine is 60:40, so Described mixed amine is made up of N-aminoethylpiperazine, 2-aminoethanol, polyethylenepolyamine and triethylenetetramine, and described N-aminoethylpiperazine, 2-aminoethanol, polyethylenepolyamine and The weight ratio of triethylenetetramine is 10-12:33-36:30-33:19-21. Add mixed amines into the reaction kettle, and slowly add cardanol glycidyl ether dropwise at 50°C under stirring conditions of 600-800 rpm, and complete the dropwise addition within 1 hour. Stir and disperse for 3-4 hours to obtain the final product.

[0035] Further, the weight ratio of N-aminoethylpiperazine, 2-aminoethanol, polyethylene polyamine and triethylenetetramine is 11.2:34.6:31.8:20.

Embodiment 3

[0037] The cardanol glycidyl ether modified mixed amine curing agent of the present invention is synthesized from cardanol glycidyl ether and mixed amine components, and the weight ratio of the cardanol glycidyl ether to the mixed amine is 80:20, so Described mixed amine is made up of N-aminoethylpiperazine, 2-aminoethanol, polyethylenepolyamine and triethylenetetramine, and described N-aminoethylpiperazine, 2-aminoethanol, polyethylenepolyamine and The weight ratio of triethylenetetramine is 10-12:33-36:30-33:19-21. Add mixed amines into the reaction kettle, and slowly add cardanol glycidyl ether dropwise under the stirring condition of 70°C and 600-800 rpm, and complete the dropwise addition within 3 hours, stir and disperse for 3-4 hours to obtain the final product.

[0038] Further, the weight ratio of N-aminoethylpiperazine, 2-aminoethanol, polyethylene polyamine and triethylenetetramine is 11.2:34.6:31.8:20.

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Abstract

The invention discloses anacardol glycidyl ether modified mixed amine hardener which is synthesized by anacardol glycidyl ether and mixed amine, wherein the weight ratio of the anacardol glycidyl ether to the mixed amine is 80:60-20:40. The mixed amine is composed of N-amino ethyl group piperazidine, 2-aminoethanol, polyethylene polyamine, and triethylene tetramine. The invention further provides a preparation method of the anacardol glycidyl ether modified mixed amine hardener. According to the preparation method of the anacardol glycidyl ether modified mixed amine hardener, the anacardol glycidyl ether and the mixed amine are obtained according to the weight percentage, and then the mixed amine is put into a reaction still, the reaction still is heated to the temperature of 50-70 DEG C, the anacardol glycidyl ether is added into the reaction still for 1-3 hours under the stirring condition of 600-800 circles / minute, and stirring and reaction are carried out for 3-4 hours, and finally the anacardol glycidyl ether modified mixed amine hardener is obtained. Due to the fact that the modified mixed amine hardener is hardener with middle and normal temperature, toxicity and volatility of the mixed amine can be effectively reduced, cost is reduced, and various film panting diseases which easily occur in a construction process can be avoided at the same time.

Description

Technical field: [0001] The invention relates to the field of organic chemistry, in particular to an epoxy resin curing agent, in particular to a cardanol glycidyl ether modified mixed amine curing agent and a preparation method thereof. Background technique: [0002] All polymer compounds containing epoxy groups in their molecular structure are collectively referred to as epoxy resins. The cured epoxy resin has good physical and chemical properties. It has excellent bonding strength to the surface of metal and non-metal materials, good dielectric properties, small shrinkage rate, good dimensional stability and high hardness. It has good flexibility and is stable to alkali and most solvents, so it is widely used in various sectors of national defense and national economy for casting, impregnating, laminating, adhesive, coating and other purposes. [0003] Aliphatic polyamines can be cured with epoxy resin at room temperature, with fast curing speed and low viscosity. They c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/64C07D295/13C07C213/04C07C217/30
Inventor 黎明沈文俊
Owner 上海美东生物材料股份有限公司
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