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Preparation method of glass fiber enhanced thermosetting resin matrix composite material

A technology of glass fiber and composite materials, which is applied in the field of preparation of glass fiber reinforced thermosetting resin-based composite materials, can solve the problems of high dielectric constant and loss value, unfavorable application, etc., and achieve excellent dielectric properties, excellent comprehensive mechanical properties, The effect of simple preparation process

Inactive Publication Date: 2011-01-26
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dielectric constant and loss value of most of the existing resin matrix composite materials are still high, which is not conducive to the application in the above fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Heat the thermosetting resin in an oil bath at a temperature of 80°C until it melts. After the thermosetting resin is uniform and clear, stir and pre-polymerize at a temperature of 90°C for 3 hours, then add cage-type silsesquioxane, and Stir at 90°C and prepolymerize for 3 hours, cool to room temperature to obtain a modified thermosetting resin, the mass ratio of the cage silsesquioxane to the thermosetting resin is 1:100, and the thermosetting resin is bisphenol A One of type cyanate resin, dicyclopentadiene type cyanate resin, bisphenol A type epoxy resin, alicyclic epoxy resin, novolac epoxy resin, bismaleimide resin and silicone resin One or several kinds, wherein the monomer of bismaleimide resin is N, N'-diaminodiphenylmethane bismaleimide, and the cage silsesquioxane is methyl cage silsesquioxane One or more of siloxane, cyclohexyl cage silsesquioxane, phenyl cage silsesquioxane, amino cage silsesquioxane and epoxy cage silsesquioxane ;

[0024] (2) Mix th...

Embodiment 2

[0030] (1) Put the thermosetting resin in an oil bath with a temperature of 140°C and heat it to melt. After the thermosetting resin is uniform and clear, stir and pre-polymerize at a temperature of 120°C for 2 hours, then add cage-type silsesquioxane, and Stir at 150°C and prepolymerize for 1 hour, cool to room temperature to obtain a modified thermosetting resin, the mass ratio of the cage silsesquioxane to the thermosetting resin is 8:100, and the thermosetting resin is bisphenol A One of type cyanate resin, dicyclopentadiene type cyanate resin, bisphenol A type epoxy resin, alicyclic epoxy resin, novolac epoxy resin, bismaleimide resin and silicone resin One or several kinds, wherein the monomer of bismaleimide resin is N, N'-diaminodiphenylmethane bismaleimide, and the cage silsesquioxane is methyl cage silsesquioxane One or more of siloxane, cyclohexyl cage silsesquioxane, phenyl cage silsesquioxane, amino cage silsesquioxane and epoxy cage silsesquioxane ;

[0031] (2...

Embodiment 3

[0037] (1) Heat the thermosetting resin in an oil bath at a temperature of 110°C until it melts. After the thermosetting resin is uniform and clear, stir and pre-polymerize at a temperature of 150°C for 1 hour, then add cage-type silsesquioxane, and Stir at 120°C and then prepolymerize for 2 hours, cool to room temperature to obtain a modified thermosetting resin, the mass ratio of the cage silsesquioxane to the thermosetting resin is 15:100, and the thermosetting resin is bisphenol A One of type cyanate resin, dicyclopentadiene type cyanate resin, bisphenol A type epoxy resin, alicyclic epoxy resin, novolac epoxy resin, bismaleimide resin and silicone resin One or several kinds, wherein the monomer of bismaleimide resin is N, N'-diaminodiphenylmethane bismaleimide, and the cage silsesquioxane is methyl cage silsesquioxane One or more of siloxane, cyclohexyl cage silsesquioxane, phenyl cage silsesquioxane, amino cage silsesquioxane and epoxy cage silsesquioxane ;

[0038] (2...

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PUM

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Abstract

The invention discloses a preparation method of a glass fiber enhanced thermosetting resin matrix composite material, which comprises the following steps of: one, preparing a modified thermosetting resin; two, preparing modified thermosetting resin glue solution; three, brushing the modified thermosetting resin glue solution on a glass fiber cloth; four, performing pressing and curing; and five, performing post-curing. The preparation method has a simple preparation process and is suitable for industrial production. The glass fiber enhanced thermosetting resin matrix composite material prepared by the method has excellent dielectric property, outstanding comprehensive mechanical properties, high temperature resistance and heat and humidity resistance, and can be used for high-frequency digital printed circuit boards, high-performance wave-transmitting structural materials and aero-space structural materials.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, and in particular relates to a method for preparing a glass fiber-reinforced thermosetting resin-based composite material. Background technique [0002] Resin-based composites are widely used in aerospace, construction, sports and agriculture because of their light weight, high strength, chemical corrosion resistance and good electrical properties. In thermosetting resin-based composite materials, the resin binds the fiber reinforced material into a whole by curing, plays the role of transmitting load, and endows the composite material with various excellent comprehensive properties, such as electrical insulation, corrosion resistance, high temperature resistance, Craftsmanship etc. The resin matrix acts as a binder in the composite material. When the performance of the reinforcing fiber tends to be stable, the resin matrix is ​​the main factor determining the performance of the com...

Claims

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Application Information

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IPC IPC(8): C08L79/04C08L63/00C08L63/02C08L63/04C08L79/08C08L83/00C08K7/14B29C70/50
Inventor 张增平梁国正顾嫒娟袁莉
Owner CHANGAN UNIV
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