Preparation and tribological properties of chemically decorated MoS2 nanosheets with oleic diethanolamide. (10th December 2018)

• Record Type: Journal Article
• Authors: Wu, Pei‐Rong; Li, Wei; Ge, Ting; Feng, Yu‐Mei; Liu, Zan; Cheng, Zhi‐Lin
• Is Part Of: Lubrication science. Volume 31:Number 1/2(2019)
• Page Start: 41
• Page End: 50
• Publication Date: 2018-12-10
• Subjects: dispersibility -- MoS2 -- nanosheets -- oleic diethanolamide -- tribological properties; Tribology -- Periodicals; Lubrication systems -- Research -- Periodicals; Surfaces (Technology) -- Research -- Periodicals; 621.89
• DOI: 10.1002/ls.1444
• Languages: English
• ISSNs: 0954-0075

Abstract

Abstract: In this paper, we attempted to modify the self‐made two‐dimensional MoS2 nanosheets by oleic diethanolamide (OD) with a simple one‐step route to obtain OD‐MoS2 . The OD‐MoS2 nanosheets were confirmed by a series of characterizations. The results showed that the MoS2 nanosheets could be chemically covered with OD molecules to form CS bond, so as to distinctly improve the dispersibility and stability of OD‐MoS2 nanosheets in base oil. Furthermore, the tribological properties of OD‐MoS2 nanosheets in base oil were comprehensively studied by four‐ball tester. In detail, the average friction coefficient and average wear scar diameter of 0.08 wt.% OD‐MoS2 ‐based oil were decreased by about 36.8% and 15.4% as compared with base oil, respectively, while its extreme pressure performance also was increased by about 15.2%. The results showed that OD‐MoS2 nanosheets exhibited the better tribological properties in oil because of the solved dispersibility.