【作者】 张福华； 王荣国； 刘文博； 赫晓东；

【Author】 ZHANG Fuhua~1,WANG Rongguo~1,Liu Wenbo~2,HE Xiaodong~1 (1 Centre for Composite Materials & Structures,Harbin Institute of Technology Harbin 150001; 2 School of Materials Science and Engineering,Harbin Institute of Technology Harbin 150001)

【机构】 哈尔滨工业大学复合材料与结构研究所；

【摘要】 利用硝酸氧化法在碳纤维(CF)表面产生的-COOH的衍生反应,将经过1,6己二胺(HMD)化学修饰的多壁碳纳米管(MWCNTs)接枝到CF表面,从而获得MWCNTs/CF多尺度增强体。通过拉曼光谱(Raman)、扫描电镜(SEM)和红外光谱(IR)对获得的产物进行表征,结果表明,经过HMD化学修饰的MWCNTs可以通过酰胺键接枝到CF表面沟槽和缺陷处,接枝数量达1.2%(质量分数),接枝上的MWCNTs直径约为10nm,长度小于200nm。更多还原

【Abstract】 Chemical modified multiwalled carbon nanotubes(MWCNTs)by hexamethlene diamine(HMD)were grafted onto carbon fiber surfaces through derivation reactions of the carboxyls on carbon fiber surfaces generated by nitric acid oxidation to obtain a novel MWCNTs/CF multi-scale reinforcement.Raman,SEM and IR were employed to characterize the products.Results indicate that HMD modified MWCNTs are grafted onto carbon fiber surfaces where there are grooves or flaws through acyl amide bonds with a content of 1.2wt%.The grafted MWCNTs are about 10 nm in diameter and less than 200 nm in length.更多还原