利用机械共混、冷压成型、烧结等工艺制备了3种复合材料，并利用MRH-3型摩擦试验机考察了不同速度、不同载荷、不同温度下复合材料的摩擦磨损性能。采用JSM-5600LV扫描电子显微镜观察分析转移膜形貌及磨损机理。实验结果表明，纳米Al2 O3和纳米SiO2都能提高PPS-PTFE基体的耐磨性，且添加5%的纳米粒子的复合材料耐磨性能最佳。纳米 SiO2/PPS-PTFE复合材料比纳米 Al2 O3/PPS-PTFE 复合材料更适宜在高温、高速、高载荷工况下工作，两种纳米粒子添加的复合材料磨损机制主要为磨粒磨损。
PPS/PTFE and two different nanoparticles reinforced PPS-PTFE composites were prepared by me-chanical blending-molding-sintering method.The tribological and wear behavior of the three composites sliding under different load,temperature,velocity were studied with a MRH-3 block-on ring friction and wear tester. The worn surface and transfer film of the composites were inspected by scanning electronic microscopy (SEM), and the abrasion mechanical was discussed.The results showed that with the addition of nano-Al2 O3 and SiO2 , the wear resistance of PPS-PTFE blends was improved,and the best anti-wear performance was obtained when the content of nano filler reached 5%.Nano-SiO2 reinforced composites were more suitable for working under heavy load and high temperature than nano Al2 O3 reinforced one.The wear mechanism of the two nanoparticles filled composites was abrasive wear.
参考文献
| [1] | 李海伟,石林锁,李亚奇.斯特林发动机的发展与应用[J].能源技术,2010(04):228-231. |
| [2] | 金东寒.斯特林发动机技术[M].黑龙江:哈尔滨工程大学出版社,2009 |
| [3] | Brushan B;Wilcock D F .Wear behavior of polymeric compositions in dry reciprocating sliding[J].WEAR,1982,75(01):41-70. |
| [4] | Shi-Quan Lai;Tong-Sheng Li;Xu-Jun Liu;Ren-Guo Lv;Li Yue .The tribological properties of PTFE filled with thermally treated nano-attapulgite[J].Tribology International,2006(6):541-547. |
| [5] | Shi-Quan Lai;Tong-Sheng Li;Xu-Jun Liu .A Study on the Friction and Wear Behavior of PTFE Filled with Acid Treated Nano-Attapulgite[J].Macromolecular materials and engineering,2004(10):916-922. |
| [6] | STEVEN E. McELWAIN;THIERRY A. BLANCHET;LINDA S. SCHADLER;W. GREGORY SAWYER .Effect of Particle Size on the Wear Resistance of Alumina-Filled PTFE Micro- and Nanocomposites[J].Tribology Transactions,2008(3):247-253. |
| [7] | Xianhua Cheng;Yujun Xue;Chaoying Xie .Tribological investigation of PTFE composite filled with lead and rare earths-modified glass fiber[J].Materials Letters,2003(16/17):2553-2557. |
| [8] | Cheng Xian-hua;Shangguan Qian-qian .Effect of rare earths on mechanical and tribological properties of carbon fibers reinforced PTFE composite[J].Tribology letters,2006(2):93-99. |
| [9] | 何鹏,冯新,汪怀远,史以俊,陆小华.纤维/Ekonol/PTFE复合材料的力学与摩擦学性能研究[J].功能材料,2007(12):2044-2047,2051. |
| [10] | Beibei Chen;Jianzhang Wang;Fengyuan Yan .Microstructure of PTFE-Based Polymer Blends and Their Tribological Behaviors Under Aqueous Environment[J].Tribology letters,2012(3):387-395. |
| [11] | LIWEN MU;XIN FENG;JIAHUA ZHU;HUAIYUAN WANG;QINGJIE SUN;YIJUN SHI;XIAOHUA LU .Comparative Study of Tribological Properties of Different Fibers Reinforced PTFE/PEEK Composites at Elevated Temperatures[J].Tribology Transactions,2010(2):189-194. |
| [12] | 高贵 .斯特林发动机活塞杆密封结构与材料研究[D].兰州理工大学,2012. |
| [13] | 邓艳文,张小平,杨波.聚四氟乙烯复合材料填充改性研究进展[J].化工新型材料,2005(06):52-54. |
| [14] | Li F;Hu K;Li J et al.The friction and wear charac-teristics of nanometer ZnO filled polytetrafluoroethylene[J].WEAR,2001,249(10):877-882. |
| [15] | David L. Burris;W. Gregory Sawyer .Improved wear resistance in alumina-PTFE nanocomposites with irregular shaped nanoparticles[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2006(7/8):915-918. |
| [16] | Burris D L;Santos K;Lewis S L et al.Polytetraflu-oroethylene matrix nanocomposites for tribological appli-cations[J].Tribology and Interface Engineering Series,2008,55:403-438. |
| [17] | 乔志军,薄振辰,王宁,张兴祥,师春生.纳米金刚石与聚醚醚酮填充改性聚四氟乙烯复合材料的摩擦学性能[J].功能材料,2010(10):1838-1841. |
| [18] | 黄岳元,任杰.纳米氧化物/聚四氟乙烯复合材料的研究[J].机械科学与技术,2004(09):1051-1053,1089. |
| [19] | 杨东亚,董悦,龚俊.聚醚醚酮填充聚四氟乙烯摩擦学性能[J].润滑与密封,2013(10):60-63. |
| [20] | 王承鹤.塑料摩擦学[M].北京:机械工业出版社,1994 |
| [21] | 刘家凌.材料磨损原理及其耐磨性[M].北京:清华大学出版社,1993 |
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