Carbon nano-tube reinforced carbon fiber thermosetting resin-based composite material preparation method

A technology of carbon nanotubes and composite materials, which is applied in the field of preparation of carbon nanotube-reinforced carbon fiber thermosetting resin-based composite materials, and can solve problems such as limiting applications, weakening the comprehensive mechanical properties of carbon fiber thermosetting resin composite materials, and interfacial bonding strength. , to achieve the effect of increasing the interlayer shear strength, achieving uniform dispersion, and increasing the interaction area

Inactive Publication Date: 2019-01-25
LINGYUN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the interfacial bonding strength of composite materials is still not very ideal, which weakens the comprehensive mechanica

Method used

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  • Carbon nano-tube reinforced carbon fiber thermosetting resin-based composite material preparation method
  • Carbon nano-tube reinforced carbon fiber thermosetting resin-based composite material preparation method
  • Carbon nano-tube reinforced carbon fiber thermosetting resin-based composite material preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A 1.7 g / L carbon nanotube isopropanol solution was prepared, and 0.5% by weight of aluminum nitrate was added. Ultrasonic oscillation was used to disperse for 120 minutes to obtain a carbon nanotube electrophoretic suspension. Pour the configured suspension into the electrolytic cell, use a stainless steel plate as the electrophoresis anode, and cut a single-layer bidirectional carbon fiber cloth as the electrophoresis cathode. The distance between the anode and the cathode was adjusted to 20mm, the electrophoresis voltage was 40V, and the electrophoresis time was 80s. After the first electrophoresis, the carbon fiber cloth was turned over and electrophoresed again for 80 seconds to obtain a carbon fiber cloth with carbon nanotubes on the surface. The surface morphology of carbon fibers after growing carbon nanotubes is as follows: figure 1 shown.

[0022] The prepared 10 layers of carbon fibers with carbon nanotubes are arranged in the mold, and the epoxy resin, cur...

Embodiment 2

[0028] A 1.7 g / L carbon nanotube isopropanol solution was prepared, and 0.7% by weight of aluminum nitrate was added. Ultrasonic oscillation was used to disperse for 120 minutes to obtain a carbon nanotube electrophoretic suspension. Pour the configured suspension into the electrolytic cell, use a stainless steel plate as the electrophoresis anode, and cut a single-layer bidirectional carbon fiber cloth as the electrophoresis cathode. The distance between the anode and the cathode was adjusted to 20mm, the electrophoresis voltage was 40V, and the electrophoresis time was 100s. After the first electrophoresis, the carbon fiber cloth was turned over, and electrophoresed again for 100 s to obtain a carbon fiber cloth with carbon nanotubes on the surface.

[0029] The prepared 10 layers of carbon fibers with carbon nanotubes were arranged in the mold, and epoxy resin and carbon fiber cloth were hot-pressed and impregnated by hot-melt method to prepare 10 carbon fiber epoxy prepre...

Embodiment 3

[0035] A 1.5 g / L carbon nanotube isopropanol solution was prepared, and 0.4% by weight of aluminum nitrate was added. Ultrasonic oscillation was used to disperse for 120 minutes to obtain a carbon nanotube electrophoretic suspension. Pour the configured suspension into the electrolytic cell, use a stainless steel plate as the electrophoresis anode, and cut a single-layer bidirectional carbon fiber cloth as the electrophoresis cathode. The distance between the anode and the cathode was adjusted to 20mm, the electrophoresis voltage was 40V, and the electrophoresis time was 80s. After the first electrophoresis, the carbon fiber cloth was turned over and electrophoresed again for 80 seconds to obtain a carbon fiber cloth with carbon nanotubes on the surface.

[0036] The prepared 10 layers of carbon fibers with carbon nanotubes were arranged on the mold, and the prepared phenolic resin impregnation solution and carbon fiber cloth were prepared by solution impregnation method to o...

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Abstract

The invention provides a carbon nano-tube reinforced carbon fiber thermosetting resin-based composite material preparation method, which comprises: preparing a carbon nano-tube electrophoresis suspension; growing carbon nano-tubes on the surface of carbon fibers; placing the prepared carbon nano-tube electrophoresis suspension in an electrolytic cell, and carrying out carbon nano-tube electrophoresis deposition on the surface of the carbon fiber by using a stainless steel plate as an anode and using a cut carbon fiber cloth as a cathode; placing the carbon fiber cloth obtained after electrophoresis deposition in an oven, and drying for 80-120 min; and mixing a thermosetting resin and a curing agent to obtain a resin mixture, placing the resin mixture and the dried carbon fiber cloth into amold, and molding to prepare the carbon nano-tube reinforced carbon fiber thermosetting resin-based composite material. According to the present invention, the carbon nano-tubes grow on the surface of carbon fibers so as to effectively achieve the uniform dispersion of the carbon nano-tubes; and by introducing the carbon nano-tubes, the interaction area between the fibers and the resin is significantly increased so as to improve the interlayer shear strength of the thermosetting resin-based composite material.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a method for preparing a carbon nanotube-reinforced carbon fiber thermosetting resin-based composite material. Background technique [0002] Carbon fiber has a series of excellent properties such as high strength, high modulus, fatigue resistance, and creep resistance, and is an ideal reinforcement phase for composite materials. Carbon fiber reinforced thermosetting resin composites combine the respective advantages of carbon fiber and engineering plastics, such as excellent mechanical properties, simple molding process and recyclable processing, etc. However, the interfacial bonding strength of composite materials is still not very ideal, which weakens the comprehensive mechanical properties of carbon fiber thermosetting resin composite materials and limits the application of such materials in certain fields. [0003] The excellent mechanical properties of carbon nanotubes and the ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L61/06C08K9/02C08K7/00C08K7/06C08J5/00
CPCC08J5/005C08J2361/06C08J2363/00
Inventor 陈梓山胡淼冯浩宇陈雨张展裴庆
Owner LINGYUN INDAL CORP
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