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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。
Using epichlorohydrin as grafting agent, domestic aramid fibers (AFs) were surface-treated by high energy ray co-irradiation method. The surface morphology, dynamic contact angle, surface free energy and its body before and after irradiation were compared Crystallization changes. Aramid / epoxy (IAFs / ER) composites were prepared from fibers treated with different irradiation doses (IAFs-200 and IAFs-400). Compared with the untreated fibers, the radiation-treated aramid reinforced composites The interfacial shear strength (IFSS) and interlaminar shear strength (ILSS) increased by 51.56% and 25.79%, respectively. The stability of the fiber surface activity after irradiation was good.