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芳纶纤维因其表面惰性、光滑使其与树脂浸润性差,界面结合强度低。以环氧氯丙烷为介质1,采用60Coγ-射线辐照方法对国产芳纶纤维进行表面改性,以界面剪切强度(IFSS)和层间剪切强度(ILSS)表征芳纶/环氧复合材料界面结合性能。结果表明在400kGy辐照剂量下改性效果最好;经高能辐照处理的芳纶纤维表面能升高,并失去了原有的光滑表面,且纤维表面氧含量有大幅度提高,使得纤维表面活性增大。
Aramid fiber because of its inert surface, smooth and poor infiltration of the resin, the interface with low bonding strength. Epichlorohydrin as a medium 1, the use of 60Coγ-ray irradiation method for aramid fiber surface modification, characterized by interfacial shear strength (IFSS) and interlaminar shear strength (ILSS) aramid / epoxy composite Material interface bonding performance. The results show that the best irradiation dose 400kGy best; aramid fibers treated by high-energy radiation surface energy can be increased, and lost the original smooth surface, and the fiber surface oxygen content has greatly improved, making the fiber surface Increased activity.