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Quartz fiber reinforced composite material and preparation method thereof

A technology of reinforced composite materials and quartz fibers, which is applied in the field of composite materials and their preparation, can solve the problems of low strength, difficult processing and high porosity of inorganic wave-transparent materials, and achieve good processability, low equipment requirements and high porosity. low effect

Inactive Publication Date: 2010-09-15
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, inorganic wave-transparent materials also have disadvantages such as low strength, difficult processing and molding, high porosity and easy moisture absorption.

Method used

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  • Quartz fiber reinforced composite material and preparation method thereof
  • Quartz fiber reinforced composite material and preparation method thereof
  • Quartz fiber reinforced composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] a kind of like figure 1 The quartz fiber-reinforced composite material shown, the composite material is based on silica and silicone resin as a composite matrix, with quartz fiber as a reinforcing phase, and the mass ratio of silica and silicone resin in the composite matrix is ​​1.8:1, The volume fraction of quartz fiber reinforced phase in the composite material is 45%. The preform used to form the reinforcement phase is a preform woven with domestic A-type quartz fibers through 2.5D weaving.

[0027] The quartz fiber reinforced composite material of this embodiment is prepared through the following steps:

[0028] 1. Pretreatment of quartz fiber prefabricated parts

[0029] 1.1 Making prefabricated parts: firstly, the domestic A-type quartz fiber is used as raw material to make quartz fiber prefabricated parts through 2.5D weaving;

[0030] 1.2 Pretreatment: Then soak the quartz fiber preform in analytically pure acetone for 24 hours, take it out, place it in an o...

Embodiment 2

[0046] a kind of like figure 2 The quartz fiber-reinforced composite material shown, the composite material is based on silica and silicone resin as a composite matrix, with quartz fiber as a reinforcing phase, and the mass ratio of silica and silicone resin in the composite matrix is ​​1.5:1, The volume fraction of the quartz fiber reinforced phase in the composite is 36%. The preform used to form the reinforcement phase is a domestic A-type quartz fiber cloth punctured preform.

[0047] The quartz fiber reinforced composite material of this embodiment is prepared through the following steps:

[0048] 1. Pretreatment of quartz fiber prefabricated parts

[0049] 1.1 Making prefabricated parts: firstly, the domestic A-type quartz fiber is used as raw material, and the quartz fiber prefabricated parts are made by puncturing the quartz fiber cloth;

[0050] 1.2 Pretreatment: Then soak the quartz fiber preform in analytically pure acetone for 24 hours, take it out, place it in...

Embodiment 3

[0066] a kind of like image 3 The quartz fiber-reinforced composite material shown is that the composite material uses silica and silicone resin as a composite matrix, and quartz fiber as a reinforcing phase. The mass ratio of silica and silicone resin in the composite matrix is ​​0.5:1. The volume fraction of the quartz fiber reinforced phase in the composite is 38%. The preform used to form the reinforcement phase is a domestic A-type quartz fiber cloth punctured preform.

[0067] The quartz fiber reinforced composite material of this embodiment is prepared through the following steps:

[0068] 1. Pretreatment of quartz fiber prefabricated parts

[0069] 1.1 Making prefabricated parts: firstly, the domestic A-type quartz fiber is used as raw material, and the quartz fiber prefabricated parts are made by puncturing the quartz fiber cloth;

[0070] 1.2 Pretreatment: Then soak the quartz fiber preform in analytically pure acetone for 24 hours, take it out, place it in an ov...

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Abstract

The invention belongs to the technical field of fiber reinforced composite materials and preparation methods thereof, and particularly discloses a quartz fiber reinforced composite material and a preparation method thereof. The composite material uses silicon dioxide and organic silicon resin in a mass ratio of (0.5-3): 1 as composite matrix and uses quartz fiber as a reinforcing phase, wherein the quartz fiber accounts for 30 to 55 percent of the volume of the composite material. The preparation method for the composite material comprises the following steps of: firstly, performing pretreatment operations such as soaking, drying, thermal treatment and the like on a quartz fiber fabricated part; secondly, placing the quartz fiber fabricated part into ion-free silicon sol to perform vacuum impregnation so as to introduce the silicon dioxide matrix; thirdly, machining and cleaning the quartz fiber fabricated part, and then placing the quartz fiber fabricated part into anhydrous ethanol solution of organic silicon resin to perform secondary vacuum impregnation and pressure impregnation; and finally, performing cross linking on the quartz fiber fabricated part to obtain the quartz fiber reinforced composite material. The quartz fiber reinforced composite material has the advantages of good dielectric property, high wave transmittance, strong capability of resisting long-time heating of ultrahigh power density microwave, good weather resistance, good rigidity and the like.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a fiber-reinforced composite material and a preparation method thereof. Background technique [0002] In recent years, with the development of modern electronic technology and the emergence of new requirements such as radar technology, electronic warfare, and aerospace communication, the application of wave-transparent materials has become more and more extensive, and the requirements for them have become higher and higher. Conventional wave-transparent materials have been difficult to meet the high-performance requirements of high-frequency, high-power electromagnetic wave transmission, heat protection / insulation, load bearing, impact resistance, weather resistance, and air tightness brought about by the development of new technologies. Therefore, the development of new high-performance wave-transparent materials has become a hot spot. [0003] At present...

Claims

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Application Information

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IPC IPC(8): C08L83/00C08K13/04C08K7/10C08K3/36
Inventor 程海峰马青松刘海韬周永江徐天恒段力群
Owner NAT UNIV OF DEFENSE TECH
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