Highly stable tribological performance and hydrophobicity of porous polyimide material filled with lubricants in a simulated space environment | |
Department | 先进润滑与防护材料研究发展中心 |
Lv M(吕美)1,2; Wang C(王超)1; Wang QH(王齐华)1; Wang TM(王廷梅)1; Liang YM(梁永民)3; Wang QH(王齐华) | |
The second department | 固体润滑国家重点实验室 |
2015 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 5Issue:66Pages:53543-53549 |
Abstract | Space exploitation and development need high-performance materials for spacecraft so as to maintain the long service life and reliability of mechanical equipment. The purpose of the present study was to exploit a new material with durable life, stable friction coefficient and low wear rate in harsh space environments. Two kinds of solid–liquid synergetic lubricating composites have been prepared using perfluoropolyethers (PFPE) or chlorinated phenyl and methyl terminated silicone oil (CPSO) filled in porous polyimide (PPI). The tribological performance and hydrophobicity of the oil-filled PPI were evaluated by contact angle analyses and a ball-on-disk tribometer before and after proton irradiation in a simulated space environment. After proton irradiation, two composites can maintain stable hydrophobic performance. More importantly, the friction coefficients of CPSO/PPI and PFPE/PPI increased slightly from 0.07 and 0.05 to 0.1 and 0.14, respectively. The wear rates of CPSO/PPI and PFPE/PPI also increased slightly from 5.13 × 10−5 mm3 N−1 m−1 and 4.23 × 10−5 mm3 N−1 m−1 to 5.75 × 10−5 mm3 N−1 m−1 and 6.19 × 10−5 mm3 N−1 m−1, respectively. The CPSO/PPI composite showed the smallest change in hydrophobicity, friction coefficient and wear rate before and after proton irradiation. The mechanism of highly stable hydrophobicity and tribological performance was mainly based on a continuous self-healing surface; the stored oil in the pores of PPI can creep to the surface of the material to repair the damage induced by proton irradiation, which ensured that the material had stable and durable hydrophobicity and tribological properties in a proton irradiation environment. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c5ra23240f |
Funding Organization | the National Basic Research Program of China (973 Program, Grant no. 2015CB057502);the National Defense Innovation Fund of Chinese Academy of Sciences (CXJJ-14-M43) |
Indexed By | SCI |
If | 3.289 |
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/362003/18324 |
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 | Wang QH(王齐华) |
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 100039, Peoples R China 3.Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China |
Recommended Citation GB/T 7714 | Lv M,Wang C,Wang QH,et al. Highly stable tribological performance and hydrophobicity of porous polyimide material filled with lubricants in a simulated space environment[J]. RSC Advances,2015,5(66):53543-53549. |
APA | Lv M,Wang C,Wang QH,Wang TM,Liang YM,&王齐华.(2015).Highly stable tribological performance and hydrophobicity of porous polyimide material filled with lubricants in a simulated space environment.RSC Advances,5(66),53543-53549. |
MLA | Lv M,et al."Highly stable tribological performance and hydrophobicity of porous polyimide material filled with lubricants in a simulated space environment".RSC Advances 5.66(2015):53543-53549. |
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