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A kind of winding carbon nanotube reinforced ceramic matrix composite material

A carbon nanotube and composite material technology, applied in the field of composite materials, to achieve the effect of broad application space and good mechanical properties

Active Publication Date: 2021-02-19
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problem of better improving the reinforcement effect of carbon nanotubes in composite materials and the mechanical properties of carbon nanotube reinforced composite materials such as stiffness and strength, to provide a kind of winding carbon nanotube reinforced composite material and its application

Method used

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  • A kind of winding carbon nanotube reinforced ceramic matrix composite material
  • A kind of winding carbon nanotube reinforced ceramic matrix composite material
  • A kind of winding carbon nanotube reinforced ceramic matrix composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0098] Take 1.2 g of coiled carbon nanotubes in the form of cosine waves with a diameter of 8 nm, and another 0.2 g of sodium hexadecylsulfonate, put them in an anhydrous ethanol dispersion medium, and ultrasonically disperse for 45 minutes. Take 15g of ZrO 2 , and 0.8 g of sodium cetyl sulfonate were placed in an anhydrous ethanol dispersion medium, and ultrasonically dispersed for 45 min. Mix the ultrasonically dispersed carbon nanotube suspension and the ceramic material suspension, add 0.6 g of sodium carboxymethylcellulose, and ultrasonically disperse for 45 minutes. Then, the obtained mixed suspension was put into a ball mill filled with argon protection, and ball milled at a speed of 450r / min for 12h. Then, the ball-milled suspension was dried with a rotary evaporator under the protection of argon, and the dried material was ground into powder and uniformly dispersed. Then, the obtained material was put into a mold, and hot-pressed and sintered under vacuum conditions...

Embodiment 2

[0100] Take 0.5 g of coiled carbon nanotubes in the form of cosine waves with a diameter of 8 nm, and another 0.1 g of sodium dodecylsulfonate, place them in an anhydrous ethanol dispersion medium, and disperse them by ultrasonic waves for 30 minutes. Take 12g of Al 2 o 3 , and 0.4 g of sodium dodecylsulfonate were placed in an anhydrous ethanol dispersion medium, and ultrasonically dispersed for 30 minutes. The ultrasonically dispersed carbon nanotube suspension and the ceramic material suspension were mixed, and 0.2 g of sodium carboxyethyl cellulose was added, and ultrasonically dispersed for 30 minutes. Then, the obtained mixed suspension was put into a ball mill filled with argon protection, and ball milled at a speed of 400r / min for 12h. Then, the ball-milled suspension was dried with a rotary evaporator under the protection of argon, and the dried material was ground into powder and uniformly dispersed. Then, the obtained material was loaded into a mold, and hot-pres...

Embodiment 3

[0102] Take 2g of coiled carbon nanotubes in the form of cosine waves with a diameter of 8nm, and another 0.25g of sodium lignosulfonate, place them in an anhydrous ethanol dispersion medium, and disperse them by ultrasonic waves for 60 minutes. Take 18g of B 4 C, and 0.75g sodium lignosulfonate, placed in anhydrous ethanol dispersion medium, ultrasonically dispersed for 60min. Mix the ultrasonically dispersed carbon nanotube suspension and the ceramic material suspension, add 0.8 g of polyvinyl alcohol, and ultrasonically disperse for 60 minutes. Then, the obtained mixed suspension was put into a ball mill filled with argon protection, and ball milled at a speed of 500 r / min for 16 h. Then, the ball-milled suspension was dried with a rotary evaporator under the protection of argon, and the dried material was ground into powder and uniformly dispersed. Then, the obtained material was loaded into a mold, and hot-pressed and sintered under vacuum conditions. The specific sinte...

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Abstract

The invention relates to a winding carbon nanotube reinforced ceramic matrix composite material, which comprises the following raw materials in parts by weight: 100-200 parts of ceramic material, 1-25 parts of winding carbon nanotube, and 0-10 parts of adhesive , dispersant 0-15 parts. In the entangled carbon nanotube reinforced ceramic matrix composite, the diameter of the entangled carbon nanotube is 8nm, and its shape is entangled in the form of a cosine wave. The invention also relates to a method for preparing said composite material.

Description

technical field [0001] The invention relates to a carbon nanotube-reinforced ceramic matrix composite material, which belongs to the field of composite materials. Background technique [0002] Since the discovery of carbon nanotubes (CNTs for short) at the end of the 20th century, it has attracted widespread attention for its excellent mechanical, electrical and thermal properties. Studies have shown that the hardness of CNTs is 50 times that of traditional steel, and its Young's modulus is traditional 5 times that of steel, but also has unique electrical properties. [0003] The ideal structure of carbon nanotubes (CNTs) is a seamless, hollow tube surrounded by a hexagonal carbon atom grid, and the two ends are usually hemispheres composed of pentagonal, hexagonal, and heptagonal carbon atom rings. Covered by large fullerene molecules, the diameter ranges from a few tenths to hundreds of nanometers, and the length can reach tens of microns. According to the number of laye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/80C04B35/10C04B35/14C04B35/48C04B35/56C04B35/563C04B35/584C04B35/622C04B35/632C04B35/634C04B35/636
CPCC04B35/10C04B35/14C04B35/48C04B35/56C04B35/563C04B35/584C04B35/622C04B35/632C04B35/634C04B35/6365C04B2235/5288
Inventor 罗冬梅宋瑞兰谢悦宿晓如
Owner FOSHAN UNIVERSITY
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