Fluorine-containing catalyst capable of improving water resistance of epoxy resin/amine curing system and preparation method thereof

A technology of amine curing and epoxy resin, which is applied in the field of fluorine-containing catalysts and its preparation, can solve the problems of reducing the water resistance of the curing system, and achieve the effect of fast curing, low surface energy and high activity

Active Publication Date: 2018-03-13
咸阳新伟华绝缘材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, medium and high temperature curing agents need a catalyst to meet the actual needs. The cured epoxy resin system is easy to absorb water due to the polar groups such as hydroxyl groups, which reduces the water resistance of the curing system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Put 1 mole of polyetheramine and 2 moles of trifluoroacetic acid into the reactor, raise the temperature to 40°C, stir for 40 minutes, cool down to 25°C, discharge, and cool to obtain the catalyst of the present invention.

Embodiment 2

[0022] Put 1 mole of polyetheramine and 2.5 moles of perfluoroheptanoic acid into the reactor, raise the temperature to 50°C, stir for 60 minutes, cool down to 25°C, discharge, and cool to obtain the catalyst of the present invention.

Embodiment 3

[0024] Put 1 mole of polyetheramine and 2.2 moles of perfluorononanoic acid into the reactor, raise the temperature to 65°C, stir for 60 minutes, cool down to 25°C, discharge, and cool to obtain the catalyst of the present invention.

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PUM

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Abstract

The invention relates to a fluorine-containing catalyst capable of improving water resistance of an epoxy resin / amine curing system and a preparation method thereof. A fluorine-containing ammonium salt is generated by acid fluoride and polyether amine, is brown red liquid at the room temperature, is soluble in water, is 4-7 in pH value, and has extremely high catalytic property for epoxy resin / amine curing agents. The fluorine-containing catalyst capable of improving water resistance of the epoxy resin / amine curing system is easy and feasible to prepare and operate; fluorine atoms are contained, so that the catalyzed curing system has low surface energy, high water resistance, and a potential application prospect on the aspects of coatings, electronic encapsulating materials and composite materials.

Description

technical field [0001] The invention belongs to special additives for polymer materials, and belongs to fluorine-containing catalyst and its preparation method, in particular to a fluorine-containing catalyst capable of improving the water resistance of epoxy resin / amine curing system and its preparation method. It is an excellent fast curing catalyst for epoxy resin / amine curing system, which can improve the water resistance of the curing system and reduce the surface tension. Background technique [0002] Amine curing agent is an important curing agent for epoxy resin. Due to different types, the curing temperature ranges from room temperature to high temperature. Generally, medium and high temperature curing agents need a catalyst to meet the actual needs. The cured epoxy resin system contains polar groups such as hydroxyl groups which are very easy to absorb water, which reduces the water resistance of the curing system. Fluorinated polymers are generally used in amphip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/68C08G59/50C08G65/332
CPCC08G59/50C08G59/686C08G65/3322
Inventor 刘念杰徐文辉吴先锋苏小军
Owner 咸阳新伟华绝缘材料有限公司
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