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Preparation method of high-temperature pressure-resistant heat-insulation carbon fiber sheet

A carbon fiber cloth, high temperature technology, applied in the field of textile processing and preparation, can solve the problems of poor high temperature compression resistance, thermal insulation performance to be improved, poor fire resistance of carbon fiber cloth, etc., and achieve the effect of large thermal conductivity

Inactive Publication Date: 2019-01-04
黄勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is to provide a high-temperature compression-resistant and heat-insulating carbon fiber cloth preparation method for the defects that the current carbon fiber cloth has poor fire resistance, poor high-temperature compressive performance when used as a fireproof material, and heat insulation performance needs to be improved.

Method used

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  • Preparation method of high-temperature pressure-resistant heat-insulation carbon fiber sheet

Examples

Experimental program
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Effect test

example 1

[0029] Take 150mL of methyl silicone oil and add it to a three-necked flask equipped with a thermometer and a reflux device. Under the protection of nitrogen, move the three-necked flask into a sand bath, control the temperature of the sand bath at 420°C, keep it warm for 1 hour, then raise the temperature to 460°C, and continue to keep warm React for 40 minutes, and cool to room temperature naturally after the reaction to obtain the product; add 200 mL of xylene to the above product, stir and mix for 10 minutes, then filter to obtain the filtrate, transfer the filtrate to a rotary evaporator, and concentrate by rotary evaporation at 80°C for 40 minutes. To obtain the concentrated solution, take 30 g of zirconium boride and add it to a pulverizer to pulverize for 30 minutes to obtain zirconium boride powder, add the zirconium boride powder, concentrated solution, and 100 mL of deionized water into a beaker, stir and mix for 15 minutes, and obtain a binder; In terms of parts by ...

example 2

[0031] Take 170mL of methyl silicone oil and add it to a three-necked flask equipped with a thermometer and a reflux device. Under the protection of nitrogen, move the three-necked flask into a sand bath, control the temperature of the sand bath at 425°C, keep it warm for 1 hour, then raise the temperature to 470°C, and continue to keep warm React for 45 minutes, and cool to room temperature naturally after the reaction to obtain the product; add 250 mL of xylene to the above product, stir and mix for 13 minutes, then filter to obtain the filtrate, transfer the filtrate to a rotary evaporator, and concentrate by rotary evaporation at 85°C for 45 minutes. To obtain the concentrated solution, take 35g of zirconium boride and add it to a pulverizer to pulverize for 35 minutes to obtain zirconium boride powder, add the zirconium boride powder, concentrated solution, and 150mL deionized water into the beaker, stir and mix for 17 minutes, and obtain the binder; In terms of parts by w...

example 3

[0033] Take 200mL of methyl silicone oil and add it to a three-necked flask equipped with a thermometer and a reflux device. Under the protection of nitrogen, move the three-necked flask into a sand bath, control the temperature of the sand bath at 430°C, keep it warm for 2 hours, then raise the temperature to 480°C, and continue to keep warm React for 50 minutes. After the reaction, cool down to room temperature naturally to obtain the product; add 300 mL of xylene to the above product, stir and mix for 15 minutes, then filter to obtain the filtrate, transfer the filtrate to a rotary evaporator, and concentrate by rotary evaporation at 90°C for 50 minutes. To obtain the concentrated solution, take 40 g of zirconium boride and put it into a pulverizer to pulverize for 40 minutes to obtain zirconium boride powder, add the zirconium boride powder, concentrated solution, and 200 mL of deionized water into a beaker, stir and mix for 20 minutes, and obtain a binder; In terms of part...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the technical field of processing and preparation of textiles, and particularly relates to a preparation method of a high-temperature pressure-resistant heat-insulation carbonfiber sheet. The preparation method comprises the steps of taking methyl silicone oil is taken as a raw material to obtain a split product; blending the split product with dimethylbenzene to obtain aconcentrated solution; taking zirconium boride powder and the concentrated solution a as raw materials to prepare a binding agent; finally mixing raw materials such as white corundum and sodium polyacrylate, and then blending the binding agent to obtain fireproof porcelain powder; dissolving a mixed polymer in N-N dimethyl sulfoxide to obtain a blended spinning stock solution; sintering pre-oxidized wires to obtain a carbon fiber sheet preform; and coating the carbon fiber sheet preform with a high-temperature-resistant solution to obtain the high-temperature-resistant carbon fiber sheet. Expandable graphite can rapidly absorb melting heat and evaporation heat which are released from a resin carbon layer, therefore, the heat insulation property of the carbon fiber sheet is improved, air pores which can be reduced in the carbon fiber sheet can be filled with silicon carbide whiskers, the pressure resistance of the carbon fiber sheet at a high temperature is further improved, and the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of textile processing and preparation, and in particular relates to a preparation method of high-temperature, pressure-resistant and heat-insulating carbon fiber cloth. Background technique [0002] Carbon fiber is a new type of fiber material with a carbon content of more than 95%. It has excellent characteristics such as low density, high specific strength and specific modulus, high temperature resistance, chemical corrosion resistance, high thermal conductivity, low thermal expansion, and high impact resistance, so the composite materials made of it often have excellent comprehensive properties. Carbon fiber materials are widely used in important fields of national defense and civilian use. According to different classifications of carbon fiber, carbon fiber can be mainly divided into: high-strength carbon fiber, high modulus carbon fiber, ion exchange carbon fiber and activated carbon fiber; according t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): C04B26/12
CPCC04B26/122C04B2111/28C04B2201/50C04B18/023C04B24/003C04B14/386C04B14/024C04B14/303C04B14/306C04B14/04
Inventor 黄勇章红英赵金晶
Owner 黄勇
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