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以间氯过氧苯甲酸与八乙烯基笼形倍半硅氧烷(POSS)反应制得的八乙烯基POSS环氧化产物为原料,采用熔融纺丝工艺制备POSS/PA66纳米复合纤维,借助FTIR、TG、FE-SEM和DSC测试方法对八乙烯基POSS环氧化产物和POSS/PA66纳米复合纤维进行表征。结果表明:将间氯过氧苯甲酸与八乙烯基POSS进行反应,可以使部分乙烯基团发生环氧化反应,生成的八乙烯基POSS环氧化产物具有良好的耐热性能。采用熔融纺丝工艺制备的POSS/PA66纳米复合纤维,POSS均匀分散在复合纤维中,纤维的热性能如熔融温度和起始分解温度都有所提高,同时纤维的力学性能也得到改善。
The POSS / PA66 nanocomposite fiber was prepared by the melt-spinning process using octavinyl POSS epoxidation product of m-chloroperbenzoic acid and octavinyl-terminated cage silsesquioxane (POSS) FTIR, TG, FE-SEM and DSC were used to characterize octavinyl POSS epoxidation products and POSS / PA66 nanocomposite fibers. The results show that the reaction of m-chloroperbenzoic acid with octavinyl POSS can make part of the ethylene epoxidation reaction, the resulting octavinyl POSS epoxidation products have good heat resistance. The POSS / PA66 nanocomposite fibers prepared by melt spinning process are dispersed uniformly in the composite fibers. The thermal properties of fibers such as the melting temperature and initial decomposition temperature are improved, and the mechanical properties of the fibers are also improved.