Preparation and tribological properties of melamine microcapsule/epoxy resin composites
In this study,white oil-melamine resin microcapsules were prepared through in-situ polymerization method with white oil as the core material and melamine resin as the wall material.The properties were charac-terized using optical microscopy(OM),scanning electron microscopy(SEM),infrared spectroscopy(FT-IR),and thermogravimetric analysis(TG).Using melamine resin microcapsule as a modifier,a melamine microcap-sule/epoxy resin composite was prepared by the bulk casting method.The effects of the microcapsule addition a-mount and wear rate on the tribological properties of epoxy resin composites were studied,and their mechanical properties and wear surface morphology were analyzed.The experimental results show that the addition of mel-amine resin microcapsules can significantly improve the friction and wear properties of epoxy resin composites.When the amount of melamine resin microcapsules added is 3%and the rotational speed is 0.2 m/s,the epoxy resin composite material has the lowest friction coefficient,reaching 0.057.When the speed of 0.1 m/s,it has the minimum wear rate of 0.454× 10-7cm3/Nm,with the decrease of 76.5%.