用离子液体法制备cu纳米颗粒并将其用于摩擦学研究优于常用的方法,以往对此报道不多。通过微波辐射合成了1.丁基一3.甲基咪唑双三氟甲基磺酰亚胺{[BMIm]NTf2}离子液体,利用化学还原法分别在水溶液和[BMIm]NTf:中制备了Cu纳米颗粒,采用XRD,TEM,TG和DTA对其结构进行了表征;将2种纳米cu颗粒溶于N68基础油中,采用四球摩擦磨损试验机对2种纳米cu添加体的摩擦学性能进行了试验,并对磨痕表面进行了SEM分析。结果表明.[BMIm]NTf:离子液体中制备的cu纳米颗粒为面心立方结构,粒径为3~25nm,能够显著改善N68基础油的抗磨减摩性能;与水溶液中制备的纳米cu添加体相比,其摩擦系数下降了24.6%,钢球磨斑直径下降了18.8%,PB值提高了16.4%。
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