【摘要】 合成了1-丁基-3-甲基咪唑四氟硼酸盐([Bm im]BF4)及1-羟乙基-3-甲基咪唑四氟硼酸盐([C2OHm im]BF4)2种室温离子液体。在四球摩擦机上研究了这2种离子液体的摩擦学性能,用SEM和XPS对磨痕表面的形貌和元素组成进行了表征,并分析了2种离子液体不同的润滑机制。结果表明,由于[C2OHm im]BF4上的功能化基团容易吸附在摩擦副表面,其在中低载荷下有更好的减摩抗磨性能。更多还原

【Abstract】 The two ionic liquids 1-butyl-3-methyl imidazolium tetrafluoroborate（BF₄） and 1-ethoxyl-3-methyl imidazolium tetrafluoroborate[C₂OHmim]BF₄) were synthesized and their tribological properties were evaluated on four-ball machine.The morphology and element constituent analysis of the worn scar surface were characterized by SEM and XPS,respectively.The friction mechanism of the two ionic liquids was proposed.The result indicates that [C₂OHmim]BF₄ has better antiwear property at the low and middle load for its functional radical is easy to be absorbed to wear scar surface.更多还原