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Preparation method of carbon fiber multi-scale reinforced composite component based on carbon nano-tube reinforcement

A technology for reinforcing composite materials and carbon nanotubes, which is applied in the field of composite material preparation, can solve the problems of low impact compression performance and interlayer shear strength, and achieve improved interface bonding force, increased shear strength, and compressive strength. Improved effect

Active Publication Date: 2014-02-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of low impact compression performance and interlayer shear strength existing in existing carbon fiber composite materials, and to invent a method for preparing a carbon fiber composite material component that uses carbon fiber tubes to increase its comprehensive performance

Method used

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  • Preparation method of carbon fiber multi-scale reinforced composite component based on carbon nano-tube reinforcement
  • Preparation method of carbon fiber multi-scale reinforced composite component based on carbon nano-tube reinforcement

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Embodiment 2

[0032]Put the carbon nanotube array or powder 11 obtained by chemical vapor deposition into the quartz tube 9 together with the substrate 10. Both ends of the quartz tube 9 are sealed with polytetrafluoroethylene or silica gel flanges 8, and this embodiment adopts silica gel flanges for sealing. Connect the two ends of the quartz tube 9 to the gas pipe, including the inlet pipe 4 and the exhaust pipe 14, and put them into the bracket 12 in the microwave resonance cavity 7 and fix them. Seal the microwave resonant cavity 7, connect one end of the inlet pipe 4 to the flowmeter 6, and connect the other end of the flowmeter to the precision flow regulating valve 5, and then connect the regulating valve 3, the pressure reducing valve 2 and the gas cylinder 1. The exhaust pipe 14 is connected to the filter 15. After the device is connected, open the regulating valves and flowmeters of the air intake pipeline, pass in a certain flow of inert gas, and exhaust the air in the pipe. In...

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Abstract

The invention discloses a preparation method of a carbon fiber multi-scale reinforced composite component based on carbon nano-tube reinforcement, which is characterized by comprising the following steps of stripping a carbon nano-tube array or powder grown by chemical vapor deposition from a substrate, and putting into a closed quartz tube filled with inert gas; placing the quartz tube in a microwave field; after high-temperature thermal treatment under a microwave effect, transferring the carbon nano-tube array or powder onto a film; putting the carbon nano-tube array or powder together with the film to a vacuum guide-in mould platform by use of a vacuum bag, and vacuumizing; guiding in resin through a guide tube, and sufficiently soaking the carbon nano-tube array or powder; placing the soaked carbon nano-tube between the composite pre-soaking material layers to form a multi-scale reinforced structure with carbon fiber; putting the uncured carbon fiber multi-scale reinforced composite containing the carbon nano-tube in the microwave field; heating, curing and forming a high-performance functionalized composite component in the microwave field. The method disclosed by the invention can remarkably improve the shock compression resistance and interlayer shear resistance of the component.

Description

technical field [0001] The invention relates to a method for preparing a composite material, in particular to a method for preparing a composite material in which carbon fiber tubes are added to a carbon fiber composite material to improve the compression performance and interlaminar shear strength of the carbon fiber composite material after impact, specifically It is a method for preparing carbon fiber multi-scale reinforced composite components based on carbon nanotube reinforcement. Background technique [0002] As we all know, since carbon nanotubes were discovered by Japanese scientist Iijima in 1991, due to their unique mechanical, thermal, electrical and photoelectric properties, they have become an important part of the field of nanoscience research. Carbon nanotubes are a new kind of nanomaterials. Experiments and theoretical calculations show that carbon nanotubes have extremely high strength and ideal elasticity, and the Young's modulus can even reach 1.3TPa. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/06C08J3/28C08L61/06C08L63/00C08L79/08C08K9/00C08K7/06
Inventor 李迎光李楠垭
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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