Tribological Properties of Thermosetting Polyimide/TiO2 Nanocomposites Under Dry Sliding and Water-Lubricated Conditions
文献类型：期刊论文
| 作者 | Liu H(刘洪) ; Wang TM(王廷梅); Wang QH(王齐华)
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| 刊名 | Journal of Macromolecular Science Part B Physics
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| 出版日期 | 2012 |
| 卷号 | 51期号:11页码:2284-2296 |
| 关键词 | nano-TiO2 nanocomposites PMR thermosetting polyimide tribological properties |
| ISSN号 | 0022-2348 |
| 通讯作者 | 王齐华 |
| 英文摘要 | Thermosetting polyimide(PI)-based nanocomposites containing various contents of nano-TiO2 were fabricated via an in situ polymerization of monomer reactants (PMR) process. Under dry sliding and water-lubricated conditions the friction and wear behaviors of the PMR PI and its nanocomposites were evaluated and compared. The addition of nano-TiO2 in PI contributed to improving the friction and wear behavior considerably under dry sliding. The highest change ratio of wear rate was 61% with the optimum nano-TiO2 content of 3%, while the highest change of friction coefficient was 60% with the optimum nano-TiO2 content of 9%. Under water-lubricated condition, contrarily, the addition of nano-TiO2 in PI does harm to the tribological properties. Namely, the friction coefficient of the nanocomposites increased with increasing the nano-TiO2 content. These results may be caused by the following facts: the hardness of the PI matrix would be increased by adding the nano-TiO2 reducing the ability of elastic deformation of the nanocomposites; accordingly, the poor elastic deformation hindered the formation of a water-lubrication film on the surface. An investigation on the wear tracks indicated that the wear mechanism of PI/TiO2 nanocomposites under dry sliding condition proceeded from fatigue wear to a combination of fatigue wear and abrasive wear with increasing the mass fraction of nano-TiO2. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (Grant No. 50805139) |
| 语种 | 英语 |
| WOS记录号 | WOS:000308300700017 |
| 公开日期 | 2013-07-12 |
| 源URL | [http://210.77.64.217/handle/362003/3362]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
| 作者单位 | Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu H,Wang TM,Wang QH. Tribological Properties of Thermosetting Polyimide/TiO2 Nanocomposites Under Dry Sliding and Water-Lubricated Conditions[J]. Journal of Macromolecular Science Part B Physics,2012,51(11):2284-2296. |
| APA | Liu H,Wang TM,&Wang QH.(2012).Tribological Properties of Thermosetting Polyimide/TiO2 Nanocomposites Under Dry Sliding and Water-Lubricated Conditions.Journal of Macromolecular Science Part B Physics,51(11),2284-2296. |
| MLA | Liu H,et al."Tribological Properties of Thermosetting Polyimide/TiO2 Nanocomposites Under Dry Sliding and Water-Lubricated Conditions".Journal of Macromolecular Science Part B Physics 51.11(2012):2284-2296. |
入库方式： OAI收割
来源：兰州化学物理研究所
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