Mechanism of MWCNTs enhancing the tribological performances of epoxy resin/PTFE/polyphenylene sulfide fiber self-lubricating liner
Source abstract
Abstract
Self-lubricating liners affect the performance of joint bearings and their wear resistance has a significant effect on the service life of bearings. In this research, multi-walled carbon nanotubes (MWCNTs) were used to modify epoxy resin and prepared epoxy resin/polytetrafluoroethylene (PTFE)/polyphenylene sulfide (PPS), to produce self-lubricating MWCNTs/epoxy resin/PTFE/PPS fabric liners and explore their tribological performance. The frictional coefficient decreased from 0.13 for epoxy resin/PTFE/PPS at 15 MPa to 0.108 for MWCNTs/epoxy resin/PTFE/PPS, and the wear depth decreased from 0.342 mm to 0.252 mm. The wear mechanism was analyzed and the results demonstrate that the addition of MWCNTs can effectively enhance the wear resistance of self-lubricating fabric liners. MWCNTs form amide bonds with amine curing agents, improving interfacial adhesion and reducing PTFE fracture. The tubular structure of MWCNTs can promote the formation of transfer films and enhance their stability. During the friction process, MWCNTs forms a synergistic lubrication effect with PTFE, improving the frictional properties of the liners.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Tribology and Wear Analysis · Metal and Thin Film Mechanics · Synthesis and properties of polymers
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Mechanical Engineering, Donghua University, China
Funding
Tianjin Research Innovation Project for Postgraduate Students · National Natural Science Foundation of China
References (29)
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