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The effects of using polydopamine (PDA) coated Cu nanoparticles (PDA-Cu) as a filler in the polytetrafluoroethylene (PTFE) topcoat of a PDA/PTFE dual-layer coating are investigated, where the PDA is used as an adhesive basecoat. Tribological tests show that the addition of PDA-Cu in PTFE increases the wear life of PDA/PTFE by a factor of two, approximately three orders of magnitude greater than that...
Polydopamine (PDA) is effective in increasing the adhesion between polytetrafluoroethylene (PTFE) and a stainless steel substrate, as a result reducing the wear in PTFE films by up to 500 times. By incorporating Cu nanoparticles in PTFE films, the wear resistance can be further enhanced. The present study examined the influence of Cu nanoparticles on the tribological properties of PDA/PTFE films....
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