High-performance epoxy resin composition for vacuum infusion molding and preparation method thereof

A technology of vacuum introduction molding and epoxy resin, which is applied in the field of high-performance epoxy matrix resin composition and its preparation, can solve the problems of high viscosity, low mechanical properties and flammability, and achieve uniform performance and good internal compactness , the effect of high mechanical properties

Inactive Publication Date: 2013-03-20
BLUESTAR BEIJING CHEM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention relates to a high-performance epoxy resin composition for vacuum introduction molding and its preparation method. The technical pro

Method used

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  • High-performance epoxy resin composition for vacuum infusion molding and preparation method thereof
  • High-performance epoxy resin composition for vacuum infusion molding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: 50g dicyclopentadiene (DCPD) type epoxy resin (purchased from Da Nippon Printing HP-7200H, epoxy equivalent (EEW): 279), 45.0g bisphenol A type glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar Chemical New Materials Co., Ltd., epoxy value 0.48-0.54), 5.0g glycidylamine epoxy resin JEh-012 (purchased from Changshu Jiafa Chemical Co., Ltd., Epoxy value is 0.80-0.85) mixed, mechanically stirred and dispersed at 30°C at a speed of 800 rpm for 5 minutes, while stirring, add 0.5g kaolin and 10.0g 1,4-butanediol diglycidyl ether in sequence, Mechanically stir and disperse at a speed of 800 rpm for 10 minutes, then stand at room temperature for use, mechanically stir 40.0 g of phthalic anhydride at room temperature at a speed of 600 rpm, and then add 0.5 g of 2 - Ethyl-4-methylimidazole, mechanically stirred at a speed of 600 rpm for 5-10 minutes at room temperature. Mix the above components at room temperature, mechanically stir and...

Embodiment 2

[0025]Embodiment 2: 60g dicyclopentadiene (DCPD) type epoxy resin (purchased from Da Nippon Printing HP-7200H, epoxy equivalent (EEW): 279), 36.0g bisphenol A type glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar Chemical New Materials Co., Ltd., epoxy value 0.48-0.54), 4.0g glycidylamine epoxy resin JEh-012 (purchased from Changshu Jiafa Chemical Co., Ltd., Epoxy value is 0.80-0.85) mixed, mechanically stirred and dispersed at 30°C at a speed of 800 rpm for 5 minutes, while stirring, add 0.5g kaolin and 10.0g 1,4-butanediol diglycidyl ether in sequence, Mechanically stir and disperse at a speed of 800 rpm for 10 minutes, then stand at room temperature for use, and mechanically stir and disperse 40.0 g of phthalic anhydride at room temperature at a speed of 600 rpm for 5 minutes, and then, while stirring, add 0.5 g of 2-ethyl-4-methylimidazole was also mechanically stirred at a speed of 600 rpm for 5-10 minutes at room temperature to disperse. Mi...

Embodiment 3

[0026] Embodiment 3: 70g dicyclopentadiene (DCPD) type epoxy resin (purchased from Da Nippon Printing HP-7200H, epoxy equivalent (EEW): 279), 27.0g bisphenol A type glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar Chemical New Materials Co., Ltd., epoxy value 0.48-0.54), 3.0g glycidylamine epoxy resin JEh-012 (purchased from Changshu Jiafa Chemical Co., Ltd., Epoxy value is 0.80-0.85) mixed, mechanically stirred and dispersed at 30°C at a speed of 800 rpm for 5 minutes, while stirring, add 0.5g kaolin and 10.0g 1,4-butanediol diglycidyl ether in sequence, Mechanically stir and disperse at a speed of 800 rpm for 10 minutes, then stand at room temperature for use, and mechanically stir and disperse 40.0 g of phthalic anhydride at room temperature at a speed of 600 rpm for 5 minutes, and then, while stirring, add 0.5 g of 2-ethyl-4-methylimidazole was also mechanically stirred at a speed of 600 rpm for 5-10 minutes at room temperature to disperse. M...

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Abstract

The invention relates to a high-performance epoxy resin composition for vacuum infusion molding and a preparation method of the epoxy resin composition. The epoxy resin composition is formed by the following components in parts by mass: 100 parts of mixed epoxy resin, 20-60 parts of curing agent, 10-40 parts of diluting agent, 0.5-5.0 parts of accelerating agent, and 0.5-5.0 parts of filling, wherein the epoxy resin comprises an epoxy resin a and an epoxy resin b; the epoxy resin a is a dicyclopentadiene (DCPD) type epoxy resin; and the epoxy resin b is a composition of a glycidyl amine type epoxy resin and a bispheno1-A diglycidyl ether type epoxy resin. The epoxy matrix resin provided by the invention is the composition of the dicyclopentadiene type epoxy resin, the glycidyl amine type epoxy resin and the glycidyl ether type epoxy resin; the obtained composition is characterized by low viscosity, high mechanical property, and good fire resistance; the unchangeable viscosity of enough long time of the composition is conductive to the permeation, the venting and the service life of the resin so that the requirements of molding large parts can be met.

Description

technical field [0001] The invention relates to an epoxy resin composition and a preparation method thereof, in particular to a high-performance epoxy matrix resin composition suitable for vacuum introduction molding and a preparation method thereof. Background technique [0002] The vacuum-assisted molding process is a composite material molding process that only uses vacuum negative pressure as power to achieve resin introduction, fiber impregnation, and resin curing. Using vacuum negative pressure as the driving force, the resin is sucked into the prefabricated parts laid in the vacuum bag through the preset resin flow channel, so as to realize the infiltration of the resin on the fibers, and solidify and form without additional pressure. Its main features It is low cost, low product porosity, performance close to the autoclave process, suitable for manufacturing large structures, etc. Therefore, vacuum-assisted molding technology, as a very effective molding technology,...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08K13/02C08K5/1515C08K3/26C08K3/34C08K3/22C08K5/3445C08G59/32C08G59/42
Inventor 胡伟孟秀青杨刚刘欣彤
Owner BLUESTAR BEIJING CHEM MACHINERY
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