Effective sugar-derived organic gelator for three different types of lubricant oils to improve tribological performance

作     者：Ruochong ZHANG Xuqing LIU Zhiguang GUO Meirong CAI Lei SHI Ruochong ZHANG;Xuqing LIU;Zhiguang GUO;Meirong CAI;Lei SHI

作者机构：State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of SciencesBeijing 100049China School of MaterialsUniversity of ManchesterOxford RoadManchester M139PLUK Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Key Laboratory for the Green Preparation and Application of Functional Materials(Ministry of Education)Hubei UniversityWuhan 430062China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2020年第8卷第6期

页      面：1025-1038页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the financial support from the National Key R&D Program of China(No.2018YFB0703802) National Natural Science Foundation of China(Nos.51405477,21972153,and 51675512) Youth Innovation Promotion Association of CAS(No.2018454) the Gansu province science and technology plan(No.18ZD2W A011) 

主　　题：gel lubricant supermolecular assembly rheological property tribological performance lubricating mechanism 

摘      要：In this study,the gelling ability and lubrication performance of N-octadecyl-D-gluconamides(NOG)in liquid paraffin(LP),pentaerythritol oleate(PE-OA),and polyethylene glycol(PEG)oils were systemically *** NOG,which could gelate the investigated oils,was successfully synthesized by a one-step *** prepared gel lubricants were completely thermoreversible and exhibited improved thermal stability,according to the thermogravimetry analysis(TGA)*** tests confirmed that the NOG gelator could effectively regulate the rheological behavior of the base *** evaluation suggested that NOG,as an additive in the three types of base oils,could remarkably reduce the friction and wear in steel contacts.A plausible mechanism for the improved performances was proposed based on the mechanical strength of the gels and the formation of the boundary-lubricating film on the worn *** results indicated that NOG is a potential gelator for preparing gel lubricants with excellent tribological properties and environment-friendly characteristics.