A kind of carbon/carbon composite material and preparation method thereof

A technology of carbon composite materials and matrix materials, applied in the field of materials, can solve the problems of carbon materials reducing the properties of composite materials, insufficient uniform densification, poor porosity filling, etc., to improve compatibility and dispersion, and improve uniformity Compactness and low production cost

Active Publication Date: 2021-11-09
跃马控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the chemical deposition process and the hot isostatic pressing process, the resin impregnation cracking process has the characteristics of lower requirements for production equipment, stable process control, designable matrix structure, and the ability to form products with complex structures. However, this method exists more or less Poor pyrolysis efficiency produces a small amount of low-quality matrix, poor porosity filling, reduced composite material properties due to increased fracture of carbon materials, and insufficient uniform densification.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing a carbon / carbon composite material, comprising the steps of:

[0031] Step S1 preparation of the prefabricated body: the fullerene-based nano-micron fibers are used as the matrix material, and a layer of mesophase pitch binder is coated on the surface, and the prefabricated body is obtained by one-time hot-pressing molding; the temperature of the hot-pressing molding is 600 degrees Celsius; hot pressing pressure 9MPa, hot pressing time 5 hours; the base material is subjected to corona treatment before its surface is coated with a layer of mesophase pitch binder; the corona treatment process is to put the base material into the plasma In the body cavity, corona treatment at a power of 180W for 15 minutes;

[0032] Preparation of step S2 monomer mixture solution: 2 kg of vinyl tris (2-methoxyethoxy) silane, 1 kg of 2,7-distyryl naphthalene, 2-vinyl-2-methyl-5-( 0.5kg of 1-methylvinyl)tetrahydrofuran, 1kg of vinyl resin, and 0.05kg of azobisisobutyr...

Embodiment 2

[0038] A method for preparing a carbon / carbon composite material, comprising the steps of:

[0039] Step S1 preparation of the prefabricated body: the fullerene-based nanometer fiber is used as the matrix material, and a layer of mesophase pitch binder is coated on the surface, and the prefabricated body is obtained by one-time hot pressing; the hot pressing described in step S1 The temperature is 630 degrees Celsius; the hot pressing pressure is 10MPa, and the hot pressing time is 5.3 hours; the base material is subjected to corona treatment before its surface is coated with a layer of mesophase pitch binder; the corona treatment process is that the base material Put it into the plasma chamber, and corona treatment at a power of 185W for 16 minutes;

[0040] Preparation of step S2 monomer mixture solution: 2 kg of vinyl tris (2-methoxyethoxy) silane, 1 kg of 2,7-distyryl naphthalene, 2-vinyl-2-methyl-5-( 0.5kg of 1-methylvinyl)tetrahydrofuran, 1kg of vinyl resin, and 0.05kg ...

Embodiment 3

[0046] A method for preparing a carbon / carbon composite material, comprising the steps of:

[0047] Step S1 preparation of the prefabricated body: the fullerene-based nano-micron fibers are used as the matrix material, and a layer of mesophase pitch binder is coated on the surface, and the prefabricated body is obtained by one-time hot-pressing molding; the temperature of the hot-pressing molding is 650 degrees Celsius; hot pressing pressure 10.5MPa, hot pressing time 5.5 hours; the base material is subjected to corona treatment before its surface is coated with a layer of mesophase pitch binder; the corona treatment process is to put the base material into In the plasma chamber, corona treatment was performed at a power of 190W for 18 minutes;

[0048] Preparation of step S2 monomer mixture solution: 2 kg of vinyl tris (2-methoxyethoxy) silane, 1 kg of 2,7-distyryl naphthalene, 2-vinyl-2-methyl-5-( 0.5kg of 1-methylvinyl)tetrahydrofuran, 1kg of vinyl resin, and 0.05kg of azo...

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PUM

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Abstract

The invention provides a method for preparing a carbon / carbon composite material, which is characterized in that it comprises the following steps: step S1 preparation of a preform, step S2 preparation of a monomer mixture solution, step S3 vacuum impregnation and curing, step S4 high-temperature carbonization, Graphitization treatment. The invention also discloses the carbon / carbon composite material prepared according to the preparation method. The preparation method of the carbon / carbon composite material disclosed by the present invention is simple and easy, the equipment is simple, and the process is controllable. rate is higher.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a composite material and a preparation method thereof, in particular to a carbon / carbon composite material and a preparation method thereof. Background technique [0002] With the development of society and the advancement of science and technology, structure-function integrated heat dissipation materials are becoming more and more important in aerospace, nuclear industry, military industry and other fields, and people have higher and higher requirements for them, not only requiring them to have high mechanical properties , It is also required to have excellent thermal conductivity to facilitate the exchange of heat energy with the outside world, so as to control its own temperature changes to adapt to changes in the working environment. Carbon / carbon composite material is a typical representative of this type of material. It combines the excellent mechanical properties of fiber ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/83C04B35/84F16D69/02
CPCC04B35/83C04B2235/425C04B2235/48C04B2235/483C04B2235/6562C04B2235/77C04B2235/96C04B2235/9607F16D69/023F16D2200/0052F16D2200/0086
Inventor 黄湛明鲍瑞
Owner 跃马控股有限公司
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