The effect of anodic oxidation treatment on interfacial properties of composites

Anodic oxidation treatment method was used to modify the surface of carbon fibers. The chemical composition of carbon fibers surface, the tensile strength of filaments and the interlaminar shear strength ILSS were studied respectively. The results indicate the number of polar functional groups on the carbon fiber surface and the ILSS of the composites are increased, and the tensile strength of filaments is decreased in a certain scope. Meanwhile the mechanism of the anodic oxidation treatment to improve the interfacial property of composites is obtained by analyzing the results.