Abstract

Pure epoxy resin (EP) coating exhibits poor wear resistance and weak corrosion protection capability, resulting in short service life. In this work, MoS2@polymethyl methacrylate (MoS2@PMMA) core-shell hybrid was firstly synthesized by emulsion polymerization, which demonstrated stability in high humidity conditions attributing to reduced MoS2 oxidation. As an additive, the tribological performances of MoS2@PMMA/EP coating at different humidity and its anti-corrosive property were explored. Under high humidity, the MoS2@PMMA/EP coating exhibited the lowest friction coefficient (0.36) compared with EP coating (0.49) and MoS2/EP coating (0.56). Especially, the wear rate of the MoS2@PMMA/EP reduced by 95.07 % and 93.22 % as to EP coating and MoS2/ EP coating, respectively. Furthermore, electrochemical tests showed the MoS2@PMMA could enhanced the corrosion resistance of the EP matrix.

Keywords Plus：PERFORMANCE，PARTICLES

Published in TRIBOLOGY INTERNATIONAL，Volume210；10.1016/j.triboint.2025.110774