摘要
利用机械共混,冷压成型,烧结等工艺制备了四种聚四氟乙烯复合材料,并利用MRH-3型摩擦磨损试验机考察了载荷200N,滑动速度2m/s下复合材料的摩擦磨损性能。采用JSM-6700扫描电子显微镜观察分析了转移膜形貌及磨损机理。实验结果表明,PEEK、AF、PI的加入都能有效地提高PTFE的压缩强度和压缩模量。10%PEEK/PTFE复合材料的平均摩擦系数最小,5%PI/10%PEEK/PTFE复合材料耐磨性最好,其耐磨性较纯PTFE提高了630倍。
Three different polymers reinforced PTFE composites were prepared by mechanical blending-molding- sintering method. The tribological and wear behavior of the composites sliding under 200N, 2 m/s were evaluated on a MRH-3 friction and wear testing machine. The surface morphology of transfer film was inspected by scanning electronic mi- croseopy（SEM）. The results showed that with the addition of PEEK, AF and PI, the compressive strength and compression modulus were all improved. The 10% PEEK/PTFE composite exhibited the lowest friction coefficient, and 5% PI/10% PEEK/PTFE composite showed the best antiwear performance,it was 630 times better than the pure PTFE.
出处
《化工新型材料》
CAS
CSCD
北大核心
2014年第10期92-93,111,共3页
New Chemical Materials
基金
国家自然科学基金紫外光诱导纳米颗粒胶体射流加工新技术基础研究(51205180)
