Effect of Fiber Surface Treatment on Wear Characteristics of Carbon Fiber Reinforced Polyamide 6 Composites

Ozone modification method and air-oxidation were used for the surface treatment ofpolyacrylonitrile(pan)-based carbon fiber. the surface characteristics of carbon fibers werecharacterized by x-ray photoelectron spectroscopy (xps). the interfacial properties of carbon fiberreinforced polyamide 6 (cf/pa6) composites were investigated by means of the single fiber pull-outtests. as a result, it was found that ifss values of the composites with ozone treated carbon fiberare increased by 60% compared to that without treatment. xps results show that ozone treatmentincreases the amount of carboxyl groups on carbon fiber surface, thus the interfacial adhesionbetween carbon fiber and pa6 matrix is effectively promoted. the effect of surface treatmentof carbon fibers on the tribological properties of cf/pa6 composites was comparatively investigated.experimental results revealed that surface treatment can effectively improve the wear resistanceof cf/pa6.