对多壁碳纳米管进行了表面羧基化处理,将羧基化碳纳米管添加到环氧树脂基体中,通过湿法缠绕工艺制备出具有高性能的T1000碳纤维增强环氧树脂复合材料。结果表明,复合材料的界面性能和耐热性能得到改善,当羧基化碳纳米管质量含量为1%时,复合材料的层间剪切强度提高了近29%。
Carboxyl funetioaalized-multiwalled carbon nanotubes (COOH-MWNTs) were prepared as nano-reinforcement for T1000 carbon fiber/epoxy composites. COOH-MWNTs can be uniformly dispersed in epoxy matrix. The experimental results show the interracial properties and heat-resistance properties of composite were improved. Mechanical test of filament wound composites exhibit a 28% enhancement in the shear strength after adding lwt % COOH-MWNTs.