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Flame-retardant epoxy resin curing agent

An epoxy resin curing and epoxy resin technology, applied in the field of flame retardant epoxy resin curing agent, can solve problems such as environmental pollution, and achieve the effects of simple preparation process, good water dispersibility, and good flame retardancy

Inactive Publication Date: 2016-02-17
太仓康盛化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use and recycling of brominated epoxy resin, bromide gas will be generated due to decomposition, which will pollute the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The preparation steps of described flame retardant epoxy resin curing agent comprise:

[0016] End-capping: add the lower aliphatic amine of the formula amount into the reaction vessel with a condensation and stirring device at room temperature, slowly add the epoxy oxide of the formula amount with a funnel, keep the reaction temperature at 50-60°C, and react Time 2-3h;

[0017] Addition: Add the end-capped product into a reaction vessel with a condensation and stirring device, and slowly add the bisphenol A epoxy resin of the formula amount using a funnel when heating to 60°C, control the reaction temperature 70-80°C, and the reaction time 1-2h;

[0018] Salt formation: after the addition reaction is completed, add the formula amount of glacial acetic acid, and then react for 0.5-1h to obtain the flame-retardant epoxy resin curing agent.

[0019] Wherein, the lower aliphatic amine is diethylenetriamine, the raw material is easy to obtain, and the manufacturing cost i...

Embodiment 1

[0022] A flame-retardant epoxy resin curing agent, consisting of the following components: 30 parts by mass of diethylenetriamine, 43 parts by mass of tribromophenyl glycidyl ether, 26 parts by mass of bisphenol A epoxy resin, and 1 part by mass of glacial acetic acid ;

[0023] The preparation steps of described flame retardant epoxy resin curing agent comprise:

[0024] Capping: Add the formula amount of diethylenetriamine into a reaction vessel with a condensation and stirring device at room temperature, slowly add the formula amount of tribromophenyl glycidyl ether with a funnel, and keep the reaction temperature at 60 ℃, reaction time 2h;

[0025] Addition: Add the end-capped product into a reaction vessel with a condensation and stirring device, and slowly add the bisphenol A epoxy resin in the formula amount using a funnel when heated to 60°C, control the reaction temperature at 70°C, and the reaction time for 2 hours;

[0026] Salt formation: After the addition react...

Embodiment 2

[0028] A flame-retardant epoxy resin curing agent, consisting of the following components: 35 parts by mass of diethylenetriamine, 38 parts by mass of tribromophenyl glycidyl ether, 26 parts by mass of bisphenol A epoxy resin, and 1 part by mass of glacial acetic acid ;

[0029] The preparation steps of described flame retardant epoxy resin curing agent comprise:

[0030] Capping: Add the formula amount of diethylenetriamine into a reaction vessel with a condensation and stirring device at room temperature, slowly add the formula amount of tribromophenyl glycidyl ether with a funnel, and keep the reaction temperature at 50 ℃, reaction time 3h;

[0031] Addition: Add the end-capped product into a reaction vessel with a condensation and stirring device, and slowly add the bisphenol A epoxy resin of the formula amount using a funnel when heating to 60°C, control the reaction temperature at 80°C, and the reaction time for 1h;

[0032] Salt formation: After the addition reaction ...

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PUM

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Abstract

The invention discloses a flame-retardant epoxy resin curing agent. The flame-retardant epoxy resin curing agent is prepared from, by mass, 30-35 parts of low-grade aliphatic amine, 38-43 parts of epoxide, 26 parts of bisphenol A epoxy resin and 1 part of glacial acetic acid. A preparation method of the flame-retardant epoxy resin curing agent comprises the steps of end capping, wherein a formula amount of the low-grade aliphatic amine and a formula amount of the epoxide are subjected to an end-capping reaction, the reaction temperature is kept at 50 DEG C-60 DEG C, and the reaction time is kept for 2-3 h; addition performing, wherein when a shrunk end-capping product is heated to 60 DEG C, a formula amount of the bisphenol A epoxy resin is added, the reaction temperature is controlled at 70 DEG C-80 DEG C, and the reaction time is 1-2 h; salifying, wherein after an addition reaction is finished, a formula amount of the glacial acetic acid is added, reacting is performed for 0.5-1 h, and then the flame-retardant epoxy resin curing agent is obtained. In this way, the curing agent has the flame retardancy and has the good water dispersibility, and the preparation technology is simple and low in cost.

Description

technical field [0001] The invention relates to the field of epoxy resin, in particular to a flame-retardant epoxy resin curing agent. Background technique [0002] Epoxy resin has become the basic material of the rapidly developing electronics industry due to its good thermal stability and dielectric properties, and is widely used in many fields such as coatings, civil engineering, construction, adhesives, electronics, and aviation. However, flammability is the biggest disadvantage of epoxy resin, and its flame retardant modification has always been a research hotspot. As we all know, the flame-retardant epoxy resin containing halogen is the most widely used at present. Halogen-containing epoxy resin has the disadvantages of excellent mechanical properties, flame retardancy, adhesion, electrical insulation and low curing shrinkage, and is widely used in semiconductors. Electronic and electrical fields such as packaging, insulating materials and printed circuit board substr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/50
CPCC08G59/5033
Inventor 张敏
Owner 太仓康盛化工有限公司