摘要
用硅烷偶联剂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KMGF,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65.82 MPa提高到71.78 MPa,缺口冲击强度从11.86 k J/m2提高到23.73 k J/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。
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.
出处
《塑料》
CAS
CSCD
北大核心
2015年第5期74-76,89,共4页
Plastics
基金
国家自然科学基金(51203193)
中南林业科技大学青年科学基金(QJ2011007B)
关键词
PA6
磨细玻璃纤维
表面改性
力学性能
摩擦学性能
PA6
milled glass fiber
surface modification
mechanical properties
tribological properties
