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Organic titanium epoxy resin catalytic ester cyanate system

A technology of titanium epoxy resin and catalytic cyanate ester, which is applied in the field of organic titanium epoxy resin catalytic cyanate ester resin system, can solve the problem that the heat resistance, humidity and heat resistance of cured resin are decreased, and the storage period of resin system at room temperature is shortened. And other issues

Inactive Publication Date: 2008-03-19
AVIC COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalytic effect of polyol or organic amine compound on the cyanate ester modified epoxy resin system is very significant, and the compatibility with the resin system is good, but the room temperature storage period of the resin system is greatly shortened, and the heat resistance of the cured resin, Humidity and heat resistance, electrical properties have a certain degree of decline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Get 99.99 parts of bisphenol A cyanate ester, heat to 80 ℃ and melt completely, then add 0.01 part of organic titanium modified E44 bisphenol A glycidyl ether epoxy resin (the molar ratio of titanium atom to cyanate ester functional group is 100ppm), and stir well. The DSC reaction peak temperature of the resin system is 269°C. After curing at 200°C for 2 hours, the glass transition temperature of the cured resin is 235°C; after curing at 250°C for 2 hours, the glass transition temperature of the resin is 267°C.

Embodiment 2

[0015] Get 99.9 parts of bisphenol A cyanate ester, heat to 80 ℃ and melt completely, then add 0.1 part of organic titanium modified E44 bisphenol A glycidyl ether epoxy resin (the molar ratio of titanium atom to cyanate ester functional group is 800ppm), and stir well. The DSC reaction peak temperature of the resin system is 230°C, cured at 150°C for 2 hours, the glass transition temperature of the cured resin is 180°C; cured at 200°C for 2 hours, the glass transition temperature of the resin is 232°C; at 250°C After curing for 2 hours at ℃, the glass transition temperature of the resin is 265℃.

Embodiment 3

[0017] Get 99.7 parts of bisphenol A cyanate, heat to 80 ℃ and melt completely, then add 0.3 parts of organic titanium modified E44 bisphenol A glycidyl ether epoxy resin (the molar ratio of titanium atom to cyanate functional group is 1500ppm), and stir well. The DSC reaction peak temperature of the resin system is 186 ° C, cured at 130 ° C for 2 hours, the glass transition temperature of the resin is 141 ° C; cured at 200 ° C for 2 hours, the glass transition temperature of the resin is 227 ° C; at 250 ° C After curing for 2 hours, the glass transition temperature of the resin is 259°C.

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Abstract

An ester cyanate resin system with organic titanium epoxy resin as catalyst is characterized by taking organic titanium modified epoxy resin as catalyst, which is obtained by reacting tetrabutyl titanate with hydroxyl in glycidol ether epoxy resin structure, and consisting of ester cyanate resin 70-99.99% and organic titanium epoxy resin catalyst 0.01-30%. It can improve curing process of resin system, lower curing temperature, shorten curing time and cost low.

Description

technical field [0001] The invention is a cyanate ester resin system catalyzed by organic titanium epoxy resin, which relates to the modification of the existing cyanate ester resin system and the improvement of process performance. Background technique [0002] Cyanate ester resin has the characteristics of good heat resistance, bonding performance, chemical resistance and environmental resistance, and excellent electrical properties, and is widely used in industries such as composite materials, electronic packaging, and coatings. Pure cyanate resin has a low curing speed without adding a catalyst, and it takes a long time at a higher temperature to cure and form. U.S.P. 6,844,379, 6,749,927, 6,489,380, 6,372,861 and 5,969,036 use transition metal complexes as catalysts for cyanate resins or cyanate-modified epoxy resin systems. Although the use of transition metal complexes as catalysts can effectively catalyze the curing of the resin, the solubility of this type of catal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/14C08L75/00C08L63/00
Inventor 钟翔屿包建文陈祥宝
Owner AVIC COMPOSITES
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