摘要
以环氧氯丙烷为接枝剂,通过高能射线共辐照法对国产芳纶纤维(AFs)进行表面处理,对比了辐照前后芳纶表面形貌、动态接触角、表面自由能及其本体结晶情况变化。用不同辐照剂量下处理的纤维(IAFs-200和IAFs-400)制备了芳纶/环氧(IAFs/ER)复合材料,与未处理纤维相比,共辐照处理的芳纶增强复合材料的界面剪切强度(IFSS)和层间剪切强度(ILSS)分别提高了51.56%和25.79%。辐照处理后纤维表面活性的稳定性良好。
The domestic aramid fibers （AFs） were treated via mutual irradiation grafting with epichlorohydrin as grafting agent. The surface mor- phology, dynamic contact angles, surface free energy and the crystallization of untreated and irradiated AFs were investigated. The aramid fiber/epoxy resin composite materials （IAFs/ER） were prepared with irradiated aramid fibers （IAFs-200 and IAFs-400）. Compared to the untreated AFs, the interracial shear strength （IFSS） and interlaminar shear strength （ILSS） of mutual irradiated aramid fiber reinforced composites were greatly increased by 51.56% and 25.79%, respectively. The composites also showed a good stability of surface activity after irradiation.
出处
《化学与粘合》
CAS
2016年第3期153-156,164,共5页
Chemistry and Adhesion
基金
国家自然科学基金项目(编号:51173032)
关键词
芳纶纤维
共辐照
界面增强
Aramid fibers
mutual irradiation
interracial property enhancement
