GF增强PA6复合材料的力学与摩擦性能研究  

MECHANICAL AND TRIBOLOGICAL PROTERTIES OF GLASS FIBER REINFORCED POLYAMIDE 6 COMPOSITES

作　　者：谢莹[1] 李笃信[1] 赵丽[1] 李文娟[1] 方映杰 

机构地区：[1]中南大学粉末冶金国家重点实验室,长沙410083 [2]湖南映鸿科技有限公司,新化417600

出　　处：《工程塑料应用》2010年第11期12-15,共4页Engineering Plastics Application

基　　金：粉末冶金国家重点实验室基金项目(2009060129)

摘　　要：采用熔融共混法制备玻璃纤维(GF)增强尼龙(PA)6复合材料,研究了GF含量对PA6/GF复合材料力学性能和摩擦性能的影响,并利用扫描电子显微镜对复合材料的磨损机理进行分析。结果表明,GF显著影响复合材料的力学性能和摩擦性能,GF质量分数为15%时增强效果较好,PA6/GF复合材料的缺口冲击强度比纯PA6提高5倍,摩擦因数降低43%,磨损量减少33%。GF含量较低时,PA6/GF复合材料的磨损以磨粒磨损和粘着磨损为主,含量较高时则主要表现为磨粒磨损和疲劳磨损。Glass fiber reinforced polyamide 6 （PA6） composites were prepared by melt blending. The effects of glass fiber on the mechanical properties and tribological behaviors of the composites were investigated. The wear mechanism of the material was exam- ined by means of scanning electron microscopy （SEM）. The results showed that the mechanical and tribological properties of composites were significantly affected by the proportion of glass fiber. The optimal reinforcing effect of PA6 was attained when the proportion of glass fiber reached 15%. The impact strength of PA6/GF increased by 5 times and the friction coefficient and wear mass of composites were reduced approximately 43% and 33% respectively compared with those of pure PA6. The main wear mechanism of composites with low proportion of glass fiber was abrasive and adhesive wear while that was abrasive and fatigue with high proportion of glass fiber.

关 键 词：尼龙6 玻璃纤维 复合材料 力学性能 摩擦磨损性能 

分 类 号：TH117.1[机械工程—机械设计及理论]