Plasma Surface Modification of Kevlar Fibers  

凯夫勒纤维的等离子体表面改性

作　　者：贺弘[1] 李荣志[1] 朱鹤孙[1] 孙慕瑾[2] 胡宝蓉[2] 

机构地区：[1]北京理工大学材料科学研究中心 [2]中国科学院化学所

出　　处：《Journal of Beijing Institute of Technology》1992年第1期66-74,共9页北京理工大学学报（英文版）

摘　　要：Cold plasma techniques were used to treat the surface of Kevlar-49 fibers. The dynamic parameters of wetting, contact-angles and surface energy of the fiber before and alter the treatment were compared to see the changes in the wetting property. ESCA and electron spin resonance were utilized to examine the chemical composition and the attached free radicals of the fiber surface. The results, together with changes in the magnitude of the contact-angle and the number of free radicals with time after the plasma treatment do not show any ageing effect. Single filament test revealed that the tensile strength was not impaired but even improved somewhat after the plasma treatment. The experiment shows that the interlaminar shear strength of Kevlar fiber reinforced epoxy resin compo- site is increased for more than 60％% after the treatment.采用了等离子体接枝和等离子体表面处理技术来改善凯夫勒纤锥的表面性质。X-射我光电子能谱、电子自旋共振谱、混性质和接触角的测试结果证明处理结果随时间延长并没有明显的老化效应。突验还表明,处理后的凯夫勒纤维抗张强度有所提高,用它制备的坏氧树脂复合材料层间剪切强度提高了60％以上。

关 键 词：KEVLAR surface modification composite materials adhsions/plasma graft 

分 类 号：TQ342.722[化学工程—化纤工业]