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Effects of atomic oxygen irradiation on structural and tribological properties of polyimide/Al2O3 composites
Department先进润滑与防护材料研究发展中心
Liu BX(刘百幸)1,2; Pei XQ(裴先强)1; Wang QH(王齐华)1; Sun XJ(孙晓军)1; Wang TM(王廷梅)1; Wang QH(王齐华)
The second department固体润滑国家重点实验室
2012
Source PublicationSurface and Interface Analysis
ISSN0142-2421
Volume44Issue:3Pages:372-376
AbstractTo understand the effects of atomic oxygen (AO) irradiation on the structural and tribological behaviors of polymer composites, polyimide/Al2O3 composites were irradiated with AO in a ground-based simulation facility. The structural changes were characterized by X-ray photoelectron spectroscopy and attenuated total-reflection FTIR, whereas the tribological changes were evaluated by friction and wear tests as well as scanning electron microscopy analysis of the worn surfaces. It was found that AO irradiation induced the oxidation and degradation of polyimide molecular chains, which increased the O concentration and decreased the C concentration in the composite surfaces. The destruction action of AO changed the surface chemical structure and morphology of the samples. Friction and wear tests indicated that AO irradiation decreased the friction coefficient but increased the wear rate of both pure and Al2O3 filled polyimides. In terms of the tribological properties, appropriate content of Al2O3 might be favorable for the improvement of tribological properties in AO environment.
KeywordPolymer Composite Ao Irradiation Oxidation Degradation Friction Wear
Subject Area材料科学与物理化学
DOI10.1002/sia.3814
Funding Organizationthe National Science Foundation for Distinguished Young Scholars of China (Grant No.51025517);the Innovative Group Foundation of NSFC (GrantNo.50721062);the National 973 Project of China (2007CB607606);the National Natural Science Foundation of China (grant no. 50805139);the Project for Western Doctors from the Chinese Academy of Sciences (2008)
Indexed BySCI
If1.220
Language英语
Funding Project聚合物自润滑复合材料组;空间润滑材料组
compositor第一作者单位
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.licp.cn/handle/362003/3467
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 AuthorWang QH(王齐华)
Affiliation1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu BX,Pei XQ,Wang QH,et al. Effects of atomic oxygen irradiation on structural and tribological properties of polyimide/Al2O3 composites[J]. Surface and Interface Analysis,2012,44(3):372-376.
APA Liu BX,Pei XQ,Wang QH,Sun XJ,Wang TM,&王齐华.(2012).Effects of atomic oxygen irradiation on structural and tribological properties of polyimide/Al2O3 composites.Surface and Interface Analysis,44(3),372-376.
MLA Liu BX,et al."Effects of atomic oxygen irradiation on structural and tribological properties of polyimide/Al2O3 composites".Surface and Interface Analysis 44.3(2012):372-376.
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