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Carbon fiber reinforced composite and preparation thereof

A technology of resin composite material and carbon fiber, which is applied in the field of composite materials to achieve the effect of enhancing surface activity, high modulus, improving high temperature resistance processing performance and compatibility

Active Publication Date: 2009-01-14
宁波益德新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a carbon fiber-reinforced modified thermoplastic resin composite material prepared by applying special surface-treated carbon fibers, which overcomes the defects of carbon fiber surface treatment in the prior art, and makes the prepared carbon fiber-reinforced modified thermoplastic resin composite material have more superior properties. performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Calculated by weight percentage, select 30% hydrogen peroxide with a mass percentage concentration of 28% and 70% potassium permanganate to form a solution, and put carbon fiber precursors into the solution for 30 minutes at a temperature of 40 degrees. After drying, put it into an 80-degree oven to dry to make surface-modified carbon fibers.

Embodiment 2

[0027] Calculated by weight percentage, select 35% hydrochloric acid, 40% sodium nitrate and 25% potassium dichromate to form a solution, and put carbon fiber precursors into the solution for 60 minutes at a temperature of 40 degrees. After drying, put it into a 120-degree oven for drying to make surface-modified carbon fibers.

Embodiment 3

[0029] Calculated by weight percentage, select 20% sulfuric acid, 20% nitric acid, 10% phosphoric acid and 50% potassium persulfate to form a solution, and put the carbon fiber precursor into the solution for 80 minutes at a temperature of 55 degrees. After drying, put it into a 130-degree oven for drying to make surface-modified carbon fibers.

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PUM

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Abstract

The invention discloses carbon fiber reinforced thermoplastic resin composite material which is composed of the components according to the percentage by weight: carbon fibers with the surface modified accounting for 5 percent to 50 percent, thermoplastic resin accounting for 44 percent to 75 percent, polytetrafluoroethylene accounting for 5 percent to 15 percent and processing auxiliary agent accounting for 1 percent to 5 percent; the carbon fibers with the surface modified is manufactured by processing the carbon fibers in specially mixed acidic solution under the temperature of 40 DEG C to 80 DEG C for 30 minutes to 120 minutes and dried at the temperature of 80 DEG C to 150 DEG C. The invention also discloses the preparation method of the carbon fiber reinforced thermoplastic resin composite material. The carbon fibers of the carbon fiber reinforced thermoplastic resin composite material provided by the invention are dispersed in a state of 3 mm to 5 mm in a resin matrix, the original high intensity of the carbon fibers is maintained to the maximum, so as to ensure the prepared composite material to have high intensity, high modulus, high heat resistant and high wear resistant performances.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a carbon fiber reinforced composite material prepared by applying surface-treated carbon fibers and a preparation method thereof. Background technique [0002] Carbon fiber is a new type of carbon material with a carbon content of more than 93% produced by high-temperature carbonization at 1300-1600 ° C. It is a polycrystalline inorganic fiber that is arranged along the fiber axis with incomplete graphite crystals. Its structure is often graphite. A mixture of three basic carbon structures, such as a random stratified structure and a three-dimensional ordered structure. It is a new type of structural material and ablation-resistant material researched and developed to meet the development needs of aerospace and other high-tech fields, and it is also a new type of material for the upgrading of civil industries. [0003] Carbon fiber can be divided into pol...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L69/00C08L59/02C08L71/12C08L81/02C08L67/02C08L23/12C08L55/02C08L23/06C08L27/16C08L79/08C08K9/00C08J5/06B29B7/48B29B9/06
CPCB29C47/10B29C48/285B29C48/40
Inventor 毛惠敏
Owner 宁波益德新材料有限公司
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