High mechanical and tribological performance of polyimide nanocomposites reinforced by chopped carbon fibers in adverse operating conditions

doi:10.1016/j.compscitech.2016.08.011

LICP OpenIR > 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

	High mechanical and tribological performance of polyimide nanocomposites reinforced by chopped carbon fibers in adverse operating conditions
Department	先进润滑与防护材料研究发展中心
	Song FZ(宋富智); Wang QH(王齐华); Wang TM(王廷梅); Wang QH(王齐华)
The second department	固体润滑国家重点实验室
	2016
Source Publication	Composites Science and Technology
ISSN	0266-3538
Volume	134 Pages:251-257
Abstract	In the present work, the effects of nano-SiO₂ and solid lubricants (SLs) such as PTFE and WS₂ on friction and wear behavior of polyimide (PI) composites reinforced by carbon fibers were investigated in extremely wide PV (the product of velocity and pressure) factors. The results showed that the nano-SiO₂ particles can reduce friction coefficient significantly under all conditions. Under low PV conditions, from the perspective of anti-wear property, the wear rate of SiO₂/SLs/SCF/PI is remarkably reduced by the synergistic effect of nanoparticles and solid lubricants. Under PV value higher than 59.26 MPa m/s, however, it performs poor anti-wear property, which mainly due to the deteriorated mechanical properties by incorporating solid lubricants and thermal instability of solid lubricants. However, the nanoparticles improve the wear resistance of SiO₂/SCF/PI considerably especially under high PV conditions and the PV limit is got at 152.37 MPa m/s. The protection of fiber-matrix interface by nanoparticles, the higher mechanical properties and high thermal stability of SiO₂ are responsible for the improvement of PV limit.
Keyword	Polymer-matrix Composites (Pmcs) Short-fiber Composites Nano Composites Friction/wear Mechanical Properties
Subject Area	材料科学与物理化学
DOI	10.1016/j.compscitech.2016.08.011
Funding Organization	the National Basic Research Program of China (973 Program, Grant No. 2015CB057502);National Defense Science and Technology Innovation Fund of Chinese Academy of Sciences (Grant No. CXJJ-14-M43)
Indexed By	SCI
If	4.873
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	Cited Times:51[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.licp.cn/handle/362003/20250
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	State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Recommended Citation GB/T 7714	Song FZ,Wang QH,Wang TM,et al. High mechanical and tribological performance of polyimide nanocomposites reinforced by chopped carbon fibers in adverse operating conditions[J]. Composites Science and Technology,2016,134:251-257.
APA	Song FZ,Wang QH,Wang TM,&王齐华.(2016).High mechanical and tribological performance of polyimide nanocomposites reinforced by chopped carbon fibers in adverse operating conditions.Composites Science and Technology,134,251-257.
MLA	Song FZ,et al."High mechanical and tribological performance of polyimide nanocomposites reinforced by chopped carbon fibers in adverse operating conditions".Composites Science and Technology 134(2016):251-257.

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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知识库