文献类型：期刊文献

英文题名：Nanofriction properties of molecular deposition films

作者：Wang, QB; Goa, ML; Zhang, SW

机构：[1]Univ Petr, Dept Chem Engn, Beijing 102200, Peoples R China;[2]E China Univ Sci & Technol, Inst Tech Chem Phys, Shanghai 200237, Peoples R China

年份：2000

卷号：43

期号：2

起止页码：137

外文期刊名：SCIENCE IN CHINA SERIES B-CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000086745700004)】；

语种：英文

外文关键词：Au substrate; molecular deposition (MD) film; atomic force microscope (AFM); nanofriction; nanolubrication

摘要：The nanofriction properties of Au substrate and monolayer molecular deposition film and multilayer molecular deposition films on Au substrate and the molecular deposition films modified with alkyl-terminal molecule have been investigated by using an atomic force microscope. It is concluded that ( i ) the deposition of molecular deposition films on Au substrate and the modification of alkyl-terminal molecule to the molecular deposition films can reduce the frictional force; (ii) the molecular deposition films with the same terminal exhibit similar nanofriction properties, which has nothing to do with the molecular chain-length and the layer number; (iii) the unstable nanofriction properties of molecular deposition films are contributed to the active terminal of the molecular deposition film, which can be eliminated by decorating the active molecular deposition film with alkyl-terminal molecule, moreover, the decoration of alkyl-terminal molecule can lower the frictional force conspicuously; (iv) the relative humidity affects the frictional force; the higher the RH, the lower the frictional force.