塑料科技2024，Vol.52Issue(6)：22-27,6.DOI:10.15925/j.cnki.issn1005-3360.2024.06.005
改性碳化硅晶须/聚酰亚胺树脂复合材料的摩擦磨损性能
Friction and Wear Performance of Modified Silicon Carbide Whisker/Polyimide Resin Composites
摘要
Abstract
Silane coupling agents of KH550,KH560,and KH570 were employed for surface modification of silicon carbide whiskers(SiCw),and their effects on the hardness,flexural strength,and friction and wear performance of SiCw/polyimide(PI)composites were investigated.The results show that surface modification with KH550 and KH560 can effectively enhance the hardness and flexural strength of the composites,with KH560 showing more pronounced improvements.However,KH570 modification led to a notable reduction in hardness and flexural strength of the composites.When subjected to abrasion against GCr15 balls at loads ranging of 6～12 N,the surface modification with KH550 and KH560 significantly improves the wear resistance of the composites.Specifically,at lower loads(6 N)during abrasion,the KH560-modified composites exhibits the lowest wear rate,but as the friction load increases,the wear rate rises rapidly.Under higher loads of 9～12 N,the KH550-modified composites possesses the best wear resistance among all comparative samples.However,the wear resistance performance of KH570-modified samples is consistently poor under various loads,indicating that KH570 is not suitable for surface modification of SiCw in SiCw/PI composites.关键词
聚酰亚胺/碳化硅晶须/硅烷偶联剂/弯曲强度/摩擦磨损Key words
Polyimide/Silicon carbide whisker/Silane coupling agent/Flexural strength/Frictional wear分类
通用工业技术引用本文复制引用
李轩,何瑜,周德东,刘福华,吕威,张续译,胡洪涛..改性碳化硅晶须/聚酰亚胺树脂复合材料的摩擦磨损性能[J].塑料科技,2024,52(6):22-27,6.基金项目
四川省科技计划项目(2023YFG0239) （2023YFG0239）
宜宾市科技局项目(2021GY006) （2021GY006）
2022年四川轻化工大学研究生创新基金项目(Y20220440) （Y20220440）
机械结构优化及材料应用泸州市重点实验室开放课题(SCHYZSB-2023-01) （SCHYZSB-2023-01）
2022年四川轻化工大学大学生创新创业项目(S202210622012、cx20220530) （S202210622012、cx20220530）
