研究了不同玻璃纤维表面处理对PTFE复合材料在干摩擦条件下滑动磨损性能的影响,并借助扫描电子显微镜(SEM)分析了磨损机理.结果表明:在干摩擦条件下,经表面处理玻璃纤维填充的PTFE复合材料的摩擦系数和摩擦表面温度比未经处理玻璃纤维填充的PTFE复合材料的低,且减磨性能优于未经处理的;而稀土处理玻璃纤维填充的PTFE复合材料的摩擦系数和摩擦表面温度最低,减磨性能最好;未经处理玻璃纤维填充的PTFE复合材料和偶联剂处理玻璃纤维填充的PTFE复合材料都发生了剧烈的粘着转移;偶联剂与稀土处理玻璃纤维填充的PTFE复合材料的磨损机理主要是明显的磨粒磨损;稀土处理玻璃纤维填充PTFE复合材料的磨损形式主要是粘着转移和轻微的磨粒磨损.
参考文献
[1] | 黄丽, 孙正滨. PTFE复合材料力学与摩擦性能的研究 [J]. 复合材料学报, 2000, 17(4): 54-57. |
[2] | Xue Q J, Zhang Z Z, Liu W M, et al. Friction and wear characteristics of fiber- and whisker-reinforced PTFE composites under oil lubricated conditions [J]. J Appl Polym Sci, 1998, 69: 1393-1402. |
[3] | Zhang Z Z, Xue Q J, Liu W M, et al. Friction and wear characteristics of lead and its compounds filled polytetrafluoroethylene composites under oil lubricated conditions [J]. Tribol Int, 1998, 31(7): 361-368. |
[4] | Zhang Z Z, Xue Q J, Liu W M, et al. Friction and wear characteristics of metal sulfides and graphite-filled PTFE composites under dry and oil-lubricated conditions [J]. J Appl Polym Sci, 1999, 72: 751-761. |
[5] | Aglan H, Gan Y, El-Hadik M, et al. Evaluation of the fatigue fracture resistance of unfilled and filled polytetrafluoroethylene materials [J]. J Mater Sci, 1999, 34: 83-97. |
[6] | Zhang Z, Aglan H, Faughnan P, et al. Fracture and fatigue analysis of 15% chopped glass fiber reinforced PTFE [J]. J Reinf Plast Compos, 1998, 17: 752-771. |
[7] | 周晓东, 戴干策. 纤维增强热塑性聚合物复合材料的界面控制与设计 [J]. 纤维复合材料, 1998 (1): 9-12. |
[8] | 程先华, 薛玉君, 黄文振. 汽车减振器连杆磨损失效和断裂力学分析 [J]. 摩擦学学报, 2001, 21(3): 218-222. |
[9] | Xue Y J, Cheng X H. Tensile properties of glass fiber reinforced PTFE using a rare-earth surface modifier [J]. J Mater Sci Lett, 2001, 20(18): 1729-1731. |
[10] | 王承鹤. 塑料摩擦学--塑料的摩擦、磨损、润滑理论与实践 [M]. 北京: 机械工业出版社, 1994. 229-263. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%