Ultralow Friction and Wear of Polymer Composites under Extreme Unlubricated Sliding Conditions | |
Department | 先进润滑与防护材料研究发展中心 |
Qi HM(齐慧敏)1,2; Zhang G(张嘎)1; Chang, Li3; Zhao FY(赵福燕)1; Wang TM(王廷梅)1; Wang QH(王齐华)1; Zhang G(张嘎) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Advanced Materials Interfaces |
ISSN | 2196-7350 |
Volume | 4Issue:13 |
Abstract | Dependence of the tribological behaviors of polyimide- and polyetheretherketone-based composites on pv (pressure × speed) factors is investigated in air ambience. It is demonstrated that the hybrid composites filled with nanosilica/carbon fibers/graphite exhibit ultralow friction and wear under extreme conditions. In particular, the friction coefficients of the hybrid nanocomposites at 40 MPa m s−1 are in the range of 0.03–0.04, which are even lower than those obtained with poly alpha olefin lubrication. Moreover, the friction coefficients are lower than those of carbon fibers reinforced polymer composites ever reported in literatures. In order to reveal the underlying mechanisms of ultralow friction and wear, tribochemistry and tribofilms' nanostructures are comprehensively analyzed. It is identified that chelation of polymeric molecular radicals with steel counterface occurs enhancing tribofilm's bonding strength. Striking orientation of the molecules of remnant polymer in tribofilm is indicative that the film exhibits an easy-to-shear characteristic under extreme pv conditions. Nanosilica released onto sliding interface and iron oxide particles abraded from the counterface are thereafter tribosintered into a compact layer, which accounts for the high load-carrying capability of the tribofilm. |
Keyword | High-performance Composites Tribofilms Ultralow Friction Ultralow Wear |
Subject Area | 材料科学与物理化学 |
DOI | 10.1002/admi.201601171 |
Funding Organization | National Natural Science Foundation of China (Grant No. 51475446);Chinese “Thousand Youth Talents Plan” Project |
Indexed By | SCI |
If | 4.279 |
Language | 英语 |
Funding Project | 聚合物自润滑复合材料研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22105 |
Collection | 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 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhang G(张嘎) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Sydney, Ctr Adv Mat Technol, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia |
Recommended Citation GB/T 7714 | Qi HM,Zhang G,Chang, Li,et al. Ultralow Friction and Wear of Polymer Composites under Extreme Unlubricated Sliding Conditions[J]. Advanced Materials Interfaces,2017,4(13). |
APA | Qi HM.,Zhang G.,Chang, Li.,Zhao FY.,Wang TM.,...&张嘎.(2017).Ultralow Friction and Wear of Polymer Composites under Extreme Unlubricated Sliding Conditions.Advanced Materials Interfaces,4(13). |
MLA | Qi HM,et al."Ultralow Friction and Wear of Polymer Composites under Extreme Unlubricated Sliding Conditions".Advanced Materials Interfaces 4.13(2017). |
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LZ01030348.pdf(5851KB) | 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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