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Preparation method for carbon fiber reinforced polyimide resin composite material

A technology of polyimide resin and composite materials, which is applied in the direction of coating, etc., can solve the problems of composite materials such as poor strength, rigidity and high temperature resistance, limited application fields, complicated preparation process, etc., and achieve good surface quality and excellent preparation process. Simple, good heat resistance effect

Inactive Publication Date: 2015-03-04
JIANGSU CHENGFEI PRECISION ALLOY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of the traditional carbon fiber reinforced polyimide resin composite material is complicated, and the strength, rigidity and high temperature resistance of the prepared composite material are poor, which limits its application in the characteristic field

Method used

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  • Preparation method for carbon fiber reinforced polyimide resin composite material

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Comparison scheme
Effect test

Embodiment 1

[0029] The carbon fiber reinforced polyimide resin composite material preparation process of the present invention is as follows:

[0030] The first step: preparing a polyimide resin solution, the solvent is ethanol, and the solid content of the polyimide resin in the solution is 50%;

[0031] The second step: set the parameters of the roller layout machine, the roller speed is 12m / min, the tension is 5N, use the polyimide resin solution prepared in the first step and the strength is T700 level, the tow is 12K Carbon fiber, carbon fiber reinforced polyimide resin prepreg is prepared by roller arrangement method;

[0032] Step 3: Put the carbon fiber reinforced polyimide resin prepreg obtained after the arrangement into an environment with a temperature of 27°C and a humidity below 40% to dry naturally to obtain a carbon fiber reinforced polyimide resin prepreg finished product;

[0033] The fourth step: cutting the carbon fiber reinforced polyimide resin prepreg obtained in ...

Embodiment 2

[0037] The carbon fiber reinforced polyimide resin composite material preparation process of the present invention is as follows:

[0038] The first step: preparing a polyimide resin solution, the solvent is ethanol, and the solid content of the polyimide resin in the solution is 30%;

[0039] The second step: set the parameters of the roller layout machine, the roller speed is 26m / min, the tension is 7N, use the polyimide resin solution prepared in the first step and the strength is T300 level, tow 6K Carbon fiber, arranged by roller method to prepare carbon fiber reinforced polyimide resin prepreg;

[0040] Step 3: Put the carbon fiber reinforced polyimide resin prepreg obtained after the arrangement into an environment with a temperature of 10°C and a humidity below 40% to dry naturally to obtain a carbon fiber reinforced polyimide resin prepreg finished product;

[0041] The fourth step: cutting the carbon fiber reinforced polyimide resin prepreg obtained in the third st...

Embodiment 3

[0045] The carbon fiber reinforced polyimide resin composite material preparation process of the present invention is as follows:

[0046] The first step: preparing a polyimide resin solution, the solvent is ethanol, and the solid content of the polyimide resin in the solution is 40%;

[0047] The second step: set the parameters of the roller layout machine, the roller speed is 30m / min, the tension is 5N, use the polyimide resin solution prepared in the first step and the strength is T800 level, the tow 3K Carbon fiber, arranged by roller method to prepare carbon fiber reinforced polyimide resin prepreg;

[0048] Step 3: Put the carbon fiber reinforced polyimide resin prepreg obtained after the arrangement into an environment with a temperature of 30°C and a humidity below 40% to dry naturally to obtain a carbon fiber reinforced polyimide resin prepreg finished product;

[0049] The fourth step: cutting the carbon fiber reinforced polyimide resin prepreg obtained in the thir...

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Abstract

The invention discloses a preparation method for a carbon fiber reinforced polyimide resin composite material, and belongs to the field of material preparation. The preparation steps comprise: preparing a polyimide resin solution; setting parameters of a roller arrangement machine, and employing a roller arrangement method to prepare a prepreg; putting the prepreg at a ventilated shade place for air drying; cutting the dried prepreg into a demanded size, and laying up according to a set direction; heating and pressurizing the laid-up prepreg for solidification; and after solidification is finished, naturally cooling to obtain the carbon fiber reinforced polyimide resin composite material. The key point of the preparation method comprises that the carbon fiber reinforced polyimide prepreg is prepared in an appropriate parameter scope by setting the tension force of the roller arrangement machine, the roller rotating speed and other parameters. By utilizing the provided parameter scopes, the prepared carbon fiber reinforced polyimide prepreg is good in surface quality, carbon fiber is completely soaked by polyimide resin, and also the composite material prepared by using the prepreg for processing is superior in mechanical properties and good in heat resistance.

Description

technical field [0001] The invention discloses a method for preparing a fiber-reinforced resin composite material, specifically a method for preparing a carbon fiber-reinforced polyimide resin composite material, and belongs to the field of material preparation. Background technique [0002] Due to its high specific strength, high specific stiffness, good fatigue fracture resistance, strong structural designability, and excellent environmental resistance, fiber-reinforced resin-based composite materials have become the fourth largest after steel, aluminum alloys, and titanium alloys. Great aero structure material. In the aerospace industry, composite materials, especially carbon fiber composite materials, have been widely used in secondary load-bearing parts, and currently occupy an increasing proportion in main load-bearing parts such as wings and fuselages of aircraft. [0003] However, although traditional fiber-reinforced resin-based composites have excellent mechanical...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29B11/00
CPCB29B11/00B29B15/14B29C70/342
Inventor 潘蕾胡玉冰陶杰戴琦玮蔡雷柏继华朱建平
Owner JIANGSU CHENGFEI PRECISION ALLOY
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