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 uncontrollable distribution and arrangement of functional groups on the surface of carbon fiber, unfavorable carbon fiber interface mechanism research, etc., to increase wettability And the two-phase interface adhesion, improving the interfacial shear strength, the effect of improving the interfacial shear strength
CN101403183AInactive Publication Date: 2009-04-08HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2009-04-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a carbon fiber surface modification method, and relates to a carbon fiber modification method. The invention solves the problem of the uncontrollability of the distribution and arrangement of a carbon fiber surface functional group, which is not propitious to the study of the mechanism of a carbon fiber interface. The carbon fiber is plated with silver after surface pre-processing, then the carbon fiber with the silver-plated surface is infused in the dilute solution of thiol molecule containing sulfur element; depending on the coactions of the bonding reaction of sulfur atoms and metb and the force among self-assembly molecules, the thiol molecule has chemical absorption on the fiber surface and forms a closely arranged and ordered two-dimensional self-assembly single molecule membrane; two procedures are as follows: 1. the chemical plating of silver on the carbon fiber surface; and 2. the self assembly of molecules of organic sulfide on the silver-plating carbon fiber. The carbon fiber surface modification method has the advantages of realizing controllable, directional and ordered arrangement on the carbon fiber surface functional group from the molecule level, thus being beneficial to the study of the mechanism of the carbon fiber composite material interface.
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Description

technical field

[0001] The invention relates to a carbon fiber modification method. Background technique

[0002] Carbon fiber reinforced composites are widely used in aerospace, automobile manufacturing and sporting goods because of their low density, high strength, high elastic modulus and superior corrosion resistance. However, due to the inert surface of carbon fiber, small specific surface area, low surface energy, lack of chemically active functional groups, poor wettability with resin and poor adhesion between two phase interfaces, it affects the performance of the entire composite material. In order to improve the interfacial properties of carbon fiber reinforced resin matrix composites, in recent years, various methods have been used for surface treatment of carbon fibers, such as: gas phase oxidation, liquid phase oxidation, electrochemical oxidation, electrodeposition, electropolymerization, chemical grafting, chemical vapor phase, etc. Deposition, ultrasonic for...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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