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Polymer-Plastics Technology and Engineering Volume 57, 2018 - Issue 7
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Original Articles

Fabrication of Polyimide-Modified UHMWPE Composites and Enhancement Effect on Tribological Properties

Song ChenState Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan, Hubei, China
,
Jian LiState Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan, Hubei, China
,
Yongliang JinState Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan, Hubei, China
,
Jun XiaoBusiness development & Sales Department, Rtec Instruments Inc, San Jose, CA, USA
,
Tushar KhoslaBusiness development & Sales Department, Rtec Instruments Inc, San Jose, CA, USA
,
Meng HuaMBE Department, City University of Hong Kong, Kowloon, Hong Kong
,
Dan JiaState Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan, Hubei, China
&
Haitao DuanState Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan, Hubei, ChinaCorrespondence[email protected]
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Pages 700-707 | Published online: 22 Aug 2017
 
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ABSTRACT

Polyimide-modified ultrahigh molecular weight polyethylene (UHMWPE) composites were fabricated by hot-press molding process. Mesoscopic morphologies of polyimide/UHMWPE blending systems show high compatibility between the phases of polyimide and UHMWPE when the weight ratio of polyimide is no more than 50 wt%. Investigation of the tribological properties with a reciprocating ball-on-flat contact tribometer shows that the polyimide filler has important effects on the friction and wear behavior of UHMWPE composites. Compared to pure UHMWPE, the composite with 50 wt% polyimide improved tribological properties best and exhibited 43.1% reduction in friction coefficient and 66.7% reduction in wear volume loss.

GRAPHICAL ABSTRACT

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