摘要
采用低温氨气等离子法对碳纤维进行表面处理,分别在室温和微波固化条件下将碳纤维与环氧树脂复合成型,制备出碳纤维复合材料。X射线光电子能谱和原子力显微图像分析表明,对碳纤维进行表面处理后,碳纤维表面羧基、氨基官能团含量和表面粗糙度增大,对复合材料界面粘结效果影响明显。动态热机械分析法测试结果显示,微波固化15min与室温固化1天成型复合材料相比,阻尼因子tanδ低,玻璃化转变温度Tg高,界面粘结效果更优,常温玻璃态储能模量E′由室温固化的6.5GPa提高到微波固化的10.9GPa。微波固化成型技术可在短时间内获得界面粘结效果良好的复合材料。
The surface of carbon fiber treated by low temperature ammonia plasma method and carbon fiber composites prepared using the fiber and epoxy resin in ambient air and microwave condition have been undertaken.The contents of carboxy group,amino group and surface roughness of treated carbon fiber observed by X-ray photoelectron spectroscopy and atomic force microscopy analysis were enhanced which played a role in variation of composites’ interface adhesion.The tanδ was lower and the Tg was higher of composite c...
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2010年第5期59-63,共5页
China Surface Engineering
关键词
碳纤维
表面处理
粘结
固化
carbon fiber
surface treatments
interface
adhesion
cure
