2011 Fiscal Year Final Research Report

Nano-and Micro-tribology of Molecular Layers of Macromolacular Compounds on Solid Surfaces

Research Project

Project/Area Number	21360070
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	一般
Research Field	Design engineering/Machine functional elements/Tribology
Research Institution	Tokyo Institute of Technology
Principal Investigator	MASUKO Masabumi 東京工業大学, 大学院・理工学研究科, 教授 (60111663)
Co-Investigator(Renkei-kenkyūsha)	SUZUKI Akihito 東京工業大学, 大学院・理工学研究科, 助教 (30235931)
Research Collaborator	AOKI Saiko 東京工業大学, 大学院・理工学研究科, 助教 (30463053)
Project Period (FY)	2009 – 2011
Keywords	トライボロジー
Research Abstract	The proposed friction reducing mechanism of high molecular weight additives that might be brought by the high adsorption capability or low desorption tendency of molecules was confirmed experimentally. It was also found from the temperature programmed experiments that although the low molecular weight compounds having long straight alkyl chain exhibited better lubrication performance under moderate temperature, the high molecular weight compounds showed excellent lubrication performance under higher temperature. It was confirmed from the various experiments using polar base oils that the improvement of lubrication performance of high molecular weight additives is related to the swelling of long molecular chain.

(4 results)