Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum | |
Zheng F(郑菲)1,2; Wang QH(王齐华)1; Wang TM(王廷梅)1; Wang QH(王齐华) | |
刊名 | Journal of Macromolecular Science Part B Physics |
2015 | |
卷号 | 54期号:8页码:927-937 |
关键词 | aramid fiber friction polyimide polytetrafluoroethylene wear |
ISSN号 | 0022-2348 |
通讯作者 | 王齐华 |
英文摘要 | Polyimide composites filled with aramid fiber (AF) and polytetrafluoroethylene (PTFE) were prepared by hot press molding. The thermal, mechanical, and tribological properties of the composites were studied systematically. The friction and wear behavior, sliding against GCr15 steel balls, were evaluated in a ground-based wear in space simulation facility using a ball-on-disk tribosystem. The morphologies of the worn surfaces during the sliding process of the composites were analyzed by scanning electron microscopy to reveal the wear mechanism. It was found that the heat-resisting performance and the hardness of the composites were minimally affected by the additives. The flexural strength of polyimide/AF/PTFE (PI-3) decreased when PTFE was added. The wear resistance increased and the coefficient of friction decreased due to the effect of both fillers. In vacuum, the friction coefficients of polyimide (PI-1), polyimide/AF (PI-2), and PI-3 increased slightly with sliding velocity, while the opposite results were obtained in air. With the increase of air pressure the friction coefficients of the samples increased. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | The National Science Foundation for Distinguished young Scholars of China (51025517);the National Defense Basic Scientific Research Project (A1320110011) |
语种 | 英语 |
WOS记录号 | WOS:000358258400004 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/18519] |
专题 | 兰州化学物理研究所_先进润滑与防护材料研究发展中心 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Wang QH(王齐华) |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng F,Wang QH,Wang TM,et al. Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum[J]. Journal of Macromolecular Science Part B Physics,2015,54(8):927-937. |
APA | Zheng F,Wang QH,Wang TM,&王齐华.(2015).Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum.Journal of Macromolecular Science Part B Physics,54(8),927-937. |
MLA | Zheng F,et al."Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum".Journal of Macromolecular Science Part B Physics 54.8(2015):927-937. |
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