【摘要】 以白油为芯材，密胺树脂为壁材，采用原位聚合法制备了白油-密胺树脂微胶囊。采用光学显微镜（OM）、扫描电镜（SEM）、红外光谱（FT-IR）及热重分析（TG）等对其性能进行表征。以制备的微胶囊为改性剂，采用本体浇铸法制备了密胺树脂微胶囊/环氧树脂复合材料。研究了密胺树脂微胶囊的加入量、磨损速度等对环氧树脂复合材料摩擦性能的影响，并对其力学性能及磨损表面形貌进行分析。结果表明，密胺树脂微胶囊的加入能显著改善环氧树脂的摩擦磨损性能，当密胺树脂微胶囊的加入量为3%,转速为0.2 m/s时，环氧树脂复合材料具有最低的摩擦系数，为达到0.057;转速为0.1 m/s时，具有最小的磨损率，为0.454×10^-7 cm³/Nm,下降了76.5%。更多还原

【Abstract】 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 characterized 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 microcapsule/epoxy resin composite was prepared by the bulk casting method. The effects of the microcapsule addition amount 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 melamine 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^-7 cm³/Nm, with the decrease of 76.5%.更多还原