Interface modified carbon fiber/polypropylene composite material and preparation method thereof
A composite material and carbon fiber technology, which is applied in fiber processing, textiles and papermaking, etc., can solve the problems that are not suitable for improving the interface bonding between non-polar polypropylene and carbon fiber, difficult chemical bonding, and affecting the stress of composite fiber and matrix Issues such as transfer and dispersal
Active Publication Date: 2014-06-11
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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AI-Extracted Technical Summary
Problems solved by technology
The invention discloses an interface enhanced modification method of a carbon fiber composite material. Specifically, the method comprises the steps of grafting polyphosphazene on the surface of carbon fiber to obtain modified carbon fiber with a large number of amino groups on the surface, and further performing chemical grafting reaction on graphene and aminated carbon fiber. By grafting a series of graphene with different densities on the surface of the carbon fiber, the roughness and specific surface area of the surface of the carbon fiber can be effectively increased, the interface mechanical engagement effect between the carbon fiber and a resin matrix is enhanced, and active groups on the surface of the graphene can further form chemical bonds with the resin matrix, so that the interface bonding strength of the carbon fiber and resin matrix composite material is significantly improved. The invention further provides the carbon fiber prepared on the basis of the method, the composite material prepared by using the carbon fiber, and a product prepared by using the composite material.
Cvd grapheneCarbon fiber composite +10
- Experimental program(4)
- Comparison scheme(1)
|Interfacial shear strength||15.6||MPa|
|Interfacial shear strength||8.9||MPa|
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