油酸修饰PbS纳米粒子的摩擦学性能剖析  

Investigation of the Tribological Ability of Oleic Acid Capped PbS Nanoparticles

作　　者：陈爽[1] 李楠[1] 刘维民[2] 

机构地区：[1]五邑大学化学与环境工程系,广东江门529020 [2]中国科学院兰州化学物理研究所固体润滑国家重点实验室,兰州730000

出　　处：《润滑与密封》2003年第2期23-24,共2页Lubrication Engineering

基　　金：国家杰出青年科学基金资助项目 (5 982 5 116)

摘　　要：合成了基础油中分散性良好的油酸 (OA)修饰PbS纳米粒子 ,并用四球摩擦磨损试验机考察了其作为润滑油添加剂的摩擦学行为。结果表明 ,OA修饰PbS纳米粒子在较低的添加浓度下就具有良好的减摩和抗磨效果。未修饰PbS纳米粒子作为润滑油添加剂时有一定的减摩作用 ,而修饰剂油酸则具有一定的抗磨性能。Oleic acid (OA) capped PbS nanoparticles with good dispersion capacity in lubricating oils were prepared using surface modification methods. Four-ball wear test was used to evaluate the tribological behaviour of the capped nanoparticles as oil additives. Results indicate that OA capped PbS nanoparticles could remarkably improve the friction-reducing and antiwear ability of liquid paraffin with low additive concentration. Non-capped PbS nanoparticles used as oil additive can reduce the friction coefficient,while OA used alone can improve the antiwear ability.

关 键 词：纳米粒子 表面修饰 PBS 摩擦学性能 润滑油添加剂 

分 类 号：TH117.22[机械工程—机械设计及理论]