中文摘要：

用硅烷偶联荆KH550和二苯甲烷二异氰酸酯（MDI）分别对磨细玻璃纤维（MGF）进行表面改性（即K-MGF，M-MGF），采用熔融法制备PA6／MGF复合材料。实验结果表明：PA6／M-MGF复合材料中M-MGF质量分数为20％时，拉伸强度从65．82MPa提高到71．78MPa，缺口冲击强度从11．86kJ／m2提高到23．73kJ／m2，增强增韧作用优于PA6／K-MGF复合材料；摩擦磨损性能研究发现，PA6／M-MGF复合材料的摩擦因数随着M-MGF质量分数的增加而下降；PA6／M-MGF和PA6／K-MGF复合材料的磨损率的变化趋势一致。

英文摘要：

Surface of milled glass fiber （MGF） was modified by silane coupling agent KH550 and diphenyl methane-4,4＇ diisocyanate （MDI） respectively （Ab. K-MGF and M-MGF）. PA6/MGF composite were prepared by melting method. The experimental results showed that when M-MGF content was 20% in the PA6/M-MGF composite, the tensile strength increased from 65.82 MPa to 71.78 MPa and the notched impact strength increases from 11.86 kJ/m2 to 23.73 kJ/m2. Reinforcing and toughening effect was better than that of PA6/K-MGF composite. The study of friction and wear performance showed that friction coefficient of PA6/M-MGF composite decreased with the increase of M-MGF content. The change trends of wear rate of PA6/M-MGF and PA6/K-MGF composite were consistent.