Continuous carbon fiber surface modification method
A surface modification, carbon fiber technology, applied in the direction of carbon fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of poor controllability, poor effect, unable to meet the performance and other problems, and achieve the effect of good controllability and excellent effect.
Active Publication Date: 2014-09-03
AEROSPACE PRECISION PROD INC LTD
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Problems solved by technology
In the prior art, the continuous carbon fiber surface treatment technology for CF_(3D)/PEEK composite materials is too complicated, which is not conducive to the needs of continuous industrial product
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The invention provides a continuous carbon fiber surface modification method. The method comprises the steps of soaking carbon fibers in acetone, stirring continuously, cleaning with ultrapure water until being neutral, placing into nitrite acid solution with certain concentration, stirring for certain time at constant temperature, cleaning with ultrapure water until to be neutral, carrying out ultrasonic dispersion in an ultrasonic cleaning machine, and drying under a vacuum environment until having constant weight. The method has simple creation process, low cost, good controllability and good effect, and is particularly suitable for surface treatment before three-dimensional braiding of carbon fibers of CF-(3D)/PEEK composite materials.
Description
technical field [0001] The invention relates to a surface treatment method for fiber reinforced materials, in particular to a surface modification method for continuous carbon fibers. Background technique [0002] In the field of aerospace, carbon fiber reinforced resin matrix composites are favored due to their excellent properties such as high strength and good integrity. Especially in military aircraft, the choice of three-dimensional woven carbon fiber reinforced polyetheretherketone (CF_(3D) / PEEK) composite material can withstand harsh environments such as high load, high temperature and high wear, so it has been widely used. The interface is one of the important factors that directly affect the performance of CF_(3D) / PEEK composites. In order to achieve high interface bonding strength, many scholars have done a lot of research on the technology of carbon fiber surface modification. Surface oxidation treatment, surface coating or ray and laser radiation treatment of ca...
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Login to View More IPC IPC(8): D06M11/64C08L61/16C08K9/02C08K7/06D06M101/40
Inventor 张晓玲焦莎王川潘慧郑晓冬
Owner AEROSPACE PRECISION PROD INC LTD
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