炭纤维表面官能团异氰酸酯化及阴离子接枝尼龙6研究——(Ⅳ)接枝对CF/PA6复合材料界面形态的影响  

THE ISOCYANATION OF CHEMICAL FUNCTIONS ON CARBON FIBER SURFACE AND ITS ANIONIC POLYMERIZATION OF POLYAMIDE 6——(Ⅳ)THE EFFECT OF GRAFTING CARBON FIBER ON THE INTERFACE MORPHOLOGY OF CF/PA6 COMPOSITES

作　　者：林志勇[1] 陈婉吟[1] 肖凤英[1] 钱浩[1] 曾汉民[2] 

机构地区：[1]华侨大学材料科学与工程学院,福建泉州362011 [2]聚合物复合材料及功能材料教育部重点实验室,广东广州510275

出　　处：《高分子材料科学与工程》2004年第3期95-98,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金(59602007);福建省自然科学基金(E9910023;E0110023;E0210022);聚合物复合材料及功能材料教育部重点实验室(1999-2-01)资助项目

摘　　要：利用偏光显微镜(PLM)研究了炭纤维(CF)表面异氰酸酯化及其阴离子接技尼龙6(PA6)对CF/PA6复合材料界面形态的影响,考察了纤维表面化学性质、结晶温度对CF/PA6复合材料界面形成横晶的影响。结果表明,在低于初始结晶温度至接近熔点范围内,PA6在未接枝与接枝CF表面均可以形成横晶,结晶温度低形成的横晶不致密、不完整,纤维诱发横晶的能力小,结晶温度高形成的横晶完整而致密,纤维诱发横晶的能力大。在相对较低的结晶温度下,接枝CF比未接枝CF具有较高的诱发横晶能力,同时诱发的横晶致密度高且完整性好。The polarizing microscopy was used to investigate the effect of surface isocyanation of carbon fiber (CF) and crystallization temperature on the interface morphology (transcrystallization) of CF/PA6 composites. The results show that the ungrafted CF and grafted CF can both induce transcrystallization in CF/PA6 composites in the range of the beginning crystallization temperature and approaching melting temperature. The transcrystallization is more fine and perfect at higher crystallization temperature than at lower crystallization temperature, so is the ability of inducing transcrystallization. The grafted CF enhances the growth ability of transcrystallization and promotes PA6 to form more fine and perfect transcrystallization than the ungrafted CF at relative lower crystallization temperature.

关 键 词：PA6 炭纤维 CF 异氰酸酯化 尼龙6 阴离子接枝反应 横晶 温度 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]