| Tribological Properties of Polyimide Coatings Filled with PTFE and Surface-Modified Nano-Si3N4 | |
| Department | 固体润滑国家重点实验室 |
| Su, Fenghua1,2; Zhang, Shaohua1 | |
| 2014 | |
| Source Publication | Journal of Applied Polymer Science
 |
| ISSN | 0021-8995 |
| Volume | 131Issue:12Pages:40410(1-11) |
| Abstract | Polyimide (PI) coatings filled with PTFE and nano-Si3N4 were prepared by a spraying technique and successive curing. Nano-Si3N4 particles were modified by grafting 3-aminopropyltriethoxysilane to improve their dispersion in the as-prepared coatings. Friction and wear performances and wear mechanisms of the coatings were evaluated. The results show that the incorporations of PTFE and modified nano-Si3N4 particles greatly improve the friction reduction and wear resistance of PI coating. The friction and wear performance of the composite coating is significantly affected by the filler mass fraction and sliding conditions. PI coating incorporated with 20 wt % PTFE and 5 wt % modified nano-Si3N4 displays the best tribological properties. Its wear rate is more than one order of magnitude lower and its friction coefficient is over two times smaller than that of the unfilled PI coating. Differences in the friction and wear behaviors of the hybrid coatings as a function of filler or sliding condition are attributed to the filler dispersion, the characteristic of transfer film formed on the counterpart ball and the wear mechanism of the coating under different sliding conditions. |
| Keyword | Coatings Composites Friction Wear And Lubrication Nanoparticles Nanowires And Nanocrystals Polyimides |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1002/app.40410 |
| Funding Organization | the National Natural Science Foundation of China (Grants 51275176);Pearl River Science and Technology Star (2012J2200068);Findamental Research Funds for the Central Universities (Grant 2014ZG0014) |
| Indexed By | SCI |
| If | 1.768 |
| Language | 英语 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18791 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Su, Fenghua |
| Affiliation | 1.S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Su, Fenghua,Zhang, Shaohua. Tribological Properties of Polyimide Coatings Filled with PTFE and Surface-Modified Nano-Si3N4[J]. Journal of Applied Polymer Science,2014,131(12):40410(1-11). |
| APA | Su, Fenghua,&Zhang, Shaohua.(2014).Tribological Properties of Polyimide Coatings Filled with PTFE and Surface-Modified Nano-Si3N4.Journal of Applied Polymer Science,131(12),40410(1-11). |
| MLA | Su, Fenghua,et al."Tribological Properties of Polyimide Coatings Filled with PTFE and Surface-Modified Nano-Si3N4".Journal of Applied Polymer Science 131.12(2014):40410(1-11). |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Su_et_al-2014-Journa（1575KB） | 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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