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Carbon-based polymer composite material capable of being ceramized and preparation method thereof

A carbon-based polymer and composite material technology, applied in the field of carbon-based polymer composite materials and their preparation, can solve the problems of complex molding process, high use cost, complex synthesis process, etc., and achieves simple molding process, large elongation, Good softness effect

Active Publication Date: 2012-09-19
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiber-reinforced ceramic-based thermal protection material has a high thermal protection temperature, but the molding process is relatively complicated, and the product molding needs to be protected by an inert gas atmosphere. In addition, the synthesis process of ceramic precursors is complex, so the cost is high when the temperature is less than 1500 ° C.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Soak 30 parts of high-silica glass fiber, 20 parts of potassium feldspar powder, 20 parts of diatomaceous earth and 2 parts of boron nitride ceramic powder into 2 parts of high-temperature coupling agent M302 for 30 minutes, and then keep it in an oven at 80°C 3h; the particle size of the feldspar powder is 800-1000 mesh, the particle size of diatomite is 800-1000 mesh, and the particle size of boron nitride ceramic powder is 800-1000 mesh;

[0037] 2) Dissolve 100 parts of barium phenolic resin in absolute ethanol, then add the feldspar powder, diatomite and boron nitride ceramic powder treated with the coupling agent obtained in step 1), stir evenly to make dipping solution; Silicone glass fiber is immersed in the dipping solution to make a prepreg;

[0038] 3) After the prepreg is dried, it is cut and placed on a hot press at 200°C and a pressure of 1.5Mpa for 4 hours to obtain a carbon-based polymer composite that can be ceramicized.

[0039] The prepared carbon...

Embodiment 2

[0041] 1) Soak 30 parts of quartz fiber, 30 parts of mullite powder, 20 parts of bentonite and 10 parts of boron carbide ceramic powder into 2 parts of high-temperature coupling agent M503 for 30 minutes, and then keep it in an oven at 80°C for 3 hours; The particle size of mullite powder is 800-1000 mesh, the particle size of bentonite is 800-1000 mesh, and the particle size of boron carbide ceramic powder is 800-1000 mesh;

[0042] 2) Dissolve 100 parts of cyanate resin in absolute ethanol, then add the mullite powder, bentonite and boron carbide ceramic powder treated with the coupling agent obtained in step 1), and stir evenly to make a dipping solution; then put the quartz The fiber is immersed in the dipping solution to make a prepreg;

[0043] 3) After the prepreg is dried, it is cut, placed on a hot press at 200°C, and pressure 1.5Mpa for 4 hours to obtain a carbon-based polymer composite material that can be ceramicized.

[0044] The prepared carbon-based polym...

Embodiment 3

[0046] 1) Soak 30 parts of high-silica glass fiber, 30 parts of mullite powder and 2 parts of silicon carbide ceramic powder into 2 parts of high-temperature coupling agent M302 for 30 minutes, and then keep it in an oven at 80°C for 3 hours; the mullite The particle size of stone powder is 800-1000 mesh, and the particle size of silicon carbide ceramic powder is 800-1000 mesh;

[0047] 2) Dissolve 50 parts of barium phenolic resin and 50 parts of cyanate resin in absolute ethanol, then mix with each other, then add the mullite powder and silicon carbide ceramic powder treated with the coupling agent obtained in step 1), and stir evenly to prepare Dipping solution; then immerse the high-silica glass fiber in the dipping solution to make a prepreg;

[0048] 3) After the prepreg is dried, it is cut, placed on a hot press at 200°C, and pressure 1.5Mpa for 4 hours to obtain a carbon-based polymer composite material that can be ceramicized.

[0049] The prepared carbon-based polym...

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Abstract

The invention relates to a carbon-based polymer composite material capable of being ceramized and a preparation method thereof. The carbon-based polymer composite material is formed by mixing and pressing carbon-based resin, a fiber-reinforced material, a high temperature-resistant coupling agent, aluminium silicate mineral powder and non-oxide ceramic powder, and the carbon-based polymer composite material specifically comprises the following components in parts by weight: 20-50 parts of the carbon-based resin, 10-40 parts of the fiber-reinforced material, 0.5-2 parts of the high temperature-resistant coupling agent, 10-50 parts of the aluminium silicate mineral powder and 1-10 parts of the non-oxide ceramic powder. Compared with the prior art, the composite material disclosed by the invention has the advantages of good thermal protection performance and anti-scour performance; a forming process of the composite material is simple, and aerobic thermal protection and ceramic formationare integrated; the ceramization temperature is lower and the ceramic conversion rate is higher; and the polymer composite material further has the advantages of capability of being formed by the polymer composite material process, strong designability, good mechanical properties at medium and low temperature, high ceramic conversion rate, low thermal weight loss rate, high retention rate of high-temperature strength and the like.

Description

technical field [0001] The invention relates to a thermal protection composite material, in particular to a ceramizable carbon-based polymer composite material and a preparation method thereof. Background technique [0002] Thermal protection materials should have performance requirements such as low thermal conductivity, high melting point and large specific heat. When the external temperature changes sharply, the thermal protection material can quickly absorb heat or dissipate heat, and exchange the effect of heat protection through the loss of mass. Under the impact of heat flow, the size of the product should be kept stable, and it should have high mechanical strength and erosion resistance. [0003] A polymer-based thermal protection material, such as a method for preparing an ablation-resistant resin disclosed in publication number CN102010565, is composed of a hyperbranched polyboric ester resin and a high-temperature-resistant thermosetting resin to form a composite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08L79/04C08L79/08C08K13/04C08K7/14C08K7/06C08K3/34C08K3/28C08K3/38B29C43/58C04B35/00
Inventor 秦岩黄志雄石敏先丁杰饶志龙
Owner WUHAN UNIV OF TECH
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