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A kind of high-content carbon fiber reinforced nylon composite material and preparation method thereof

A technology of nylon composite materials and composite materials, which is applied in the field of high-content carbon fiber reinforced nylon composite materials and its preparation, and carbon fiber reinforced nylon composite materials, which can solve the problems of poor bonding and low carbon fiber content, so as to improve mechanical properties and improve mechanical properties , good mechanical properties

Active Publication Date: 2022-01-07
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems of poor carbon fiber and resin interface bonding and low carbon fiber content in the prior art, and provide a high-content carbon fiber reinforced nylon with good carbon fiber and resin interface bonding and high carbon fiber content. Composite material and its preparation method

Method used

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  • A kind of high-content carbon fiber reinforced nylon composite material and preparation method thereof

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preparation example Construction

[0034] see figure 1 , a kind of preparation method of high-content carbon fiber reinforced nylon composite material, described preparation method comprises the following steps:

[0035] The first step: remove the moisture in the nylon non-woven fabric to obtain anhydrous nylon non-woven fabric, and at the same time, remove the surface impurities of the carbon fiber cloth to obtain an impurity-free carbon fiber cloth;

[0036] The second step: first impregnate the impurity-free carbon fiber cloth in the alcohol-soluble nylon absolute ethanol solution to obtain the impregnated carbon fiber cloth, then take out the impregnated carbon fiber cloth, and dry to remove the water to obtain the dried carbon fiber cloth;

[0037] The third step: first select several pieces of the above-mentioned dried carbon fiber cloth and several pieces of anhydrous nylon non-woven fabric. The quality of the dried carbon fiber cloth accounts for 65%-80% of the sum of the dried carbon fiber cloth and an...

Embodiment 1

[0058] A method for preparing a high-content carbon fiber reinforced nylon composite material, comprising the following steps:

[0059] The first step: remove the moisture in the nylon non-woven fabric to obtain anhydrous nylon non-woven fabric, and at the same time, remove the surface impurities of the carbon fiber cloth to obtain an impurity-free carbon fiber cloth;

[0060] The second step: first impregnate the impurity-free carbon fiber cloth in the alcohol-soluble nylon anhydrous ethanol solution to obtain the impregnated carbon fiber cloth, then take out the impregnated carbon fiber cloth, and dry to remove the water to obtain the dried carbon fiber cloth; preferably alcohol-soluble The mass percent concentration of the nylon absolute ethanol solution is 0.5%-3%; the impurity-free carbon fiber cloth is preferably immersed in the alcohol-soluble nylon absolute ethanol solution for 8-16 hours;

[0061] The third step: first select several pieces of the above-mentioned drie...

Embodiment 2

[0064] Basic content is the same as embodiment 1, the difference is:

[0065] The hot press forming includes a hot press stage, a first cooling stage, and a second cooling stage carried out in sequence;

[0066] The hot-pressing stage refers to: hot-pressing the laminated body in the mold from the upper and lower directions;

[0067] The first cooling stage refers to: cooling the laminate under pressure in the mold;

[0068] The second cooling stage refers to: cooling the laminate in the mold;

[0069] The cooling rate of the second cooling stage is greater than that of the first cooling stage.

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Abstract

A method for preparing a high-content carbon fiber reinforced nylon composite material. First, impregnate an impurity-free carbon fiber cloth in an alcohol-soluble nylon anhydrous ethanol solution to obtain an impregnated carbon fiber cloth, then take out the impregnated carbon fiber cloth, and dry it to remove water After obtaining the dried carbon fiber cloth, select several pieces of the above-mentioned dried carbon fiber cloth and several pieces of anhydrous nylon non-woven fabric, and the quality of the dried carbon fiber cloth accounts for 65% of the sum of the dried carbon fiber cloth and anhydrous nylon non-woven fabric. 80%, then alternately superimpose the dried carbon fiber cloth and anhydrous nylon non-woven fabric to obtain a laminate, then put the laminate into a mold, and then hot press to obtain the composite material. This design not only has a better interface between carbon fiber and resin, but also has better mechanical properties of the obtained composite material, and has a higher carbon fiber content and is easy to operate.

Description

technical field [0001] The invention relates to a carbon fiber-reinforced nylon composite material, which belongs to the field of composite materials, in particular to a high-content carbon fiber-reinforced nylon composite material and a preparation method thereof, which is particularly suitable for enhancing the interfacial bonding between carbon fiber and resin, and improving the carbon fiber content. Background technique [0002] Carbon fiber has the characteristics of high specific strength and high specific modulus, and is a good reinforcing material. At present, carbon fiber-reinforced thermosetting composites mainly disperse the thermosetting resin among the carbon fiber monofilaments by vacuum introduction. However, due to the high price of carbon fiber itself, composite materials prepared using thermosetting resins cannot be recycled, resulting in a waste of resources. . [0003] At the same time, thermoplastic resins are also used in the prior art, but due to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08K7/06C08J5/06
Inventor 包海峰张承启王蕾胡睿青秦朝霞卫欣怡
Owner WUHAN TEXTILE UNIV
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