| Tribological Properties of Thermosetting Polyimide/TiO2 Nanocomposites Under Dry Sliding and Water-Lubricated Conditions | |
| Department | 先进润滑与防护材料研究发展中心 |
Liu H(刘洪) ; Wang TM(王廷梅); Wang QH(王齐华); Wang QH(王齐华)
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| The second department | 固体润滑国家重点实验室 |
| 2012 | |
| Source Publication | Journal of Macromolecular Science Part B Physics
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| ISSN | 0022-2348 |
| Volume | 51Issue:11Pages:2284-2296 |
| Abstract | 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. |
| Keyword | Nano-tio2 Nanocomposites Pmr Thermosetting Polyimide Tribological Properties |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1080/00222348.2011.624043 |
| Funding Organization | the National Natural Science Foundation of China (Grant No. 50805139) |
| Indexed By | SCI |
| If | 0.628 |
| Language | 英语 |
| Funding Project | 聚合物自润滑复合材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3362 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Wang QH(王齐华) |
| Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Liu H,Wang TM,Wang QH,et al. 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,&王齐华.(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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2284-2296.PDF（629KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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