作　　者： ; ; ; ; ;

机构地区： 河南大学

出　　处： 《材料保护》 2009年第1期61-64,共4页

摘　　要： 在氩气保护下,以室温离子液体1-丁基-3-甲基咪唑六氟磷酸盐{[BMI][PF6]}为介质,用钠-钾合金还原氯化亚铜,制备了铜纳米微粒。利用X射线衍射仪(XRD)、透射电子显微镜(TEM)、傅立叶转换红外吸收光谱仪(FTIR)及X射线光电子能谱仪(XPS)表征了所制备铜纳米微粒的形貌和结构;采用UMT-2摩擦磨损试验机考察了铜纳米微粒对离子液体减摩抗磨性能的影响。结果表明:在40℃下反应1h所制得的铜纳米微粒具有立方相结构,其粒径在40～50nm之间,粒径分布比较均匀;铜纳米微粒反而使得离子液体[BMI][PF6]的减摩抗磨性能变差,显示两者具有对抗效应,不宜复配使用。 Copper nanoparticles were prepared under the protection of Argon gas,using room temperature ionic liquid 1-butyl-3-methyl-imid-azole hexafluorophosphate J coded as [BMI ]-PF6}| as the medi-um and Na-K alloy as the reducer for reduction of cupric chlo-ride.The morphology and microstructure of the resulting Cu nan-oparticles were analyzed by means of X-ray diffraction,transmis-sion electron microscopy,fourier transformation infrared spec-trometry,and X-ray photoelectron spectroscopy.The effect of the Cu nanoparticles on the friction-reducing and antiwear behavior of ionic liquid was investigated using a UMT-2 friction and wear tester.Results indicated that the Cu nanoparticles obtained after reaction at 40 ℃ for 1 h have cubic structure and evenly distribu-ted grit size of 40 ~ 50 nm.However,the introduction of Cu nan-oparticles was harmful to the friction-reducing and antiwear be-havior of the ionic liquid,indicating that they have antagonistic effect and cannot be formulated with each other.

关 键 词： 铜纳米微粒 室温离子液体 制备 表征 摩擦学性能

领　　域： [金属学及工艺] [一般工业技术] [金属学及工艺]