Abstract

We functionalized a wear-resistant carbon-based MoS₂ filler to solve its limited wear condition problem. The filler exhibits excellent lubricative properties. The surface modification of MoS₂ was carried out using a (3-glycidyloxypropyl)trimethoxysilane (GPTMS) silane coupling agent to improve the low compatibility and dispersibility of the filler that generally degrade the performance of composites. A silane coupling agent was employed for the functionalization of MoS₂, and its effect on the wear resistance of MoS₂/Polyamide-6,6 was investigated. The silanization of MoS₂ was identified by contact angle analysis and Fourier-transform infrared, energy dispersive X-ray, and X-ray photoelectron spectroscopies. The wear resistance of the composite was found to be improved significantly by the surface functionalization of MoS₂.

Keywords: Surface functionalization;Silane coupling agent;Polyamide 66;Molybdenum disulfide;Wear property