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Technique of preparing fiber reinforcement glass based composite material

A composite material and fiber-reinforced technology, applied in the field of material manufacturing, can solve problems such as poor quality consistency, unreported preparation, cumbersome process, etc., and achieve the effects of short processing cycle, simplified preparation process, and high preparation efficiency

Inactive Publication Date: 2009-07-08
NO 53 RES INST OF CHINA NORTH IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The mud impregnation method and sol-gel method commonly used in fiber-reinforced glass matrix composites have problems such as cumbersome process, low efficiency, and poor quality consistency, which limit their use.
[0011] The preparation method of fiber-reinforced resin-based composites is generally formed by lamination, but there is no report on the preparation of fiber-reinforced glass-based composite preforms by lamination, stitching or bonding.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Using 10 layers of E-glass roving as the glass matrix and 20 layers of unidirectional carbon fiber fabric as the reinforcing fiber, the two fiber fabrics were dried at 100°C for 4 hours and then cooled to room temperature. After the two layers of carbon fiber fabrics are arranged orthogonally, they are used as reinforcing fibers and laminated with the glass fiber matrix in a mixed manner to prepare fiber-matrix prefabricated parts. Put the fiber-matrix preform into a graphite furnace, rapidly increase the temperature and pressure under nitrogen protection, and heat-press and sinter for 35 minutes at a temperature of 1300 °C and a pressure of 16 MPa, and then reduce the pressure during cooling to obtain a thickness of 4.8mm, carbon fiber reinforced glass matrix composite with a fiber volume fraction of 68.2%.

Embodiment 2

[0031] 10 layers of C-glass and D-glass fiber composite mats are used as the glass matrix, and 18 layers of twill carbon fiber fabrics are used as reinforcing fibers. The two fiber fabrics are dried at 140°C for 2 hours, and then cooled to room temperature. After the two layers of carbon fiber fabrics are arranged alternately, as reinforcing fibers, they are laminated with the glass fiber matrix in an alternate layering manner to prepare fiber-matrix prefabricated parts. Under the condition of nitrogen protection, the fiber-matrix preform was put into the graphite furnace, and the temperature was raised rapidly, and the temperature was 1200 ° C and the pressure was 9 MPa, and the hot pressing was sintered for 80 minutes, and then the pressure was reduced during the cooling period. Through the above process, a carbon fiber reinforced composite material with a thickness of 7.3mm and a fiber volume fraction of 43.2% can be obtained.

Embodiment 3

[0033] Using 10 layers of satin S glass fiber fabric as the glass matrix and 10 layers of carbon fiber and graphite fiber blended fabric as the reinforcing fiber, the two fiber fabrics were dried at 130°C for 3 hours, and then laminated alternately with the carbon fiber / graphite fiber blended fabric After preparing the blank, a certain amount of carbon fiber yarn is used to stitch the blank in Z direction. Under the condition of nitrogen protection, the hot pressing sintering temperature is 1350°C, the pressure is 19MPa, the heat preservation and pressure holding time is 22min, and the pressure is reduced during the cooling period. Through the above process, a blended fabric reinforced glass matrix with a thickness of 5.6mm and a fiber volume fraction of 79.8% can be obtained. composite material.

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Abstract

The invention relates to a process for preparing a fiber reinforced glass-based composite material. The process adopts a common layering design method for preparing a resin base composite material, directly uses glass fiber or fabrics thereof as a glass matrix and heat-resisting fiber as a reinforcing material, adopts processes of layering and hot pressing to prepare the glass-based composite material, and comprises main steps of pretreatment, laying and hot-pressing densification of the material. Compared with the prior slurry impregnation method and the prior sol-gel method, the process remarkably simplifies the preparing technology, effectively improves processing efficiency, reduces energy consumption, does not generate dust pollution during processing, and is particularly suitable for preparing the high fiber content reinforced glass-based composite material. The preparing method endows the glass-based composite material with better design property, and has compact product structure.

Description

1. Technical field [0001] The invention belongs to the technical field of material manufacturing, and relates to the manufacturing technology of fiber-reinforced composite materials, in particular to the manufacturing technology of fiber-reinforced glass-based composite materials. 2. Background technology [0002] Fiber-reinforced glass-based composite material is a composite material composed of heat-resistant reinforcing fiber as the dispersed phase and glass as the continuous phase. It has the characteristics of light weight, high strength, high toughness, high heat resistance temperature and strong thermal shock resistance. The field is extensive and the research work is active. [0003] The preparation methods of fiber reinforced glass matrix composites mainly include mud impregnation method and sol-gel method. [0004] The mud impregnation method is to melt the glass raw material at high temperature, water quenching, crushing, and ball milling to prepare matrix glass ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B19/06C03B11/00C03C14/00
Inventor 郑威王玲辛培训李宁黄玉松汪得功
Owner NO 53 RES INST OF CHINA NORTH IND GRP
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