Surface Characteristics of Rare Earth Treated Carbon Fibers and Interfacial Properties of Composites

作     者：徐志伟 黄玉东 宋元军 张春华 刘丽 

作者机构：Department of Applied Chemistry Harbin Institute of Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2007年第25卷第4期

页      面：462-468页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：Project supported by the National Natural Science Foundation of China (50333030) 

主　　题：carbon fiber/epoxy composite interfacial properties X-ray photoelectron spectroscopy rare earths 

摘      要：Effect of rare earth treatment on surface physicochemical properties of carbon fibers and interfacial properties of carbon fiber/epoxy composites was investigated, and the interfacial adhesion mechanism of treated carbon fiber/epoxy composite was analyzed. It was found that rare earth treatment led to an increase of fiber surface roughness, improvement of oxygeaa-containing groups, and introduction of rare earth element on the carbon fiber surface. As a result, coordination linkages between fibers and rare earth, and between rare earth and resin matrix were formed separately, thereby the interlaminar shear strength （ILSS） of composites increased, which indicated the improvement of the interfacial adhesion between fibers and matrix resin resulting from the increase of carboxyl and carbonyl.