Achieving Macroscale Ultra-low Friction via the Synthesis of Dioctyl Sebacate using Catalytic Esterification Using MoS_(2)/C_(60)  

作　　者：Lu Ziyan Qiu Feng Lin Qingqing Yang Zhiquan Hu Kunhong Hu Xianguo 

机构地区：[1]Institute of Tribology,Hefei University of Technology,Hefei 230009,China [2]School of Energy Materials and Chemical Engineering,Hefei University,Hefei 230601,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2024年第4期116-129,共14页中国炼油与石油化工(英文版)

基　　金：The financial support from the National Natural Science Foundation of China(52075141,52075144)is gratefully acknowledged.

摘　　要：Dioctyl sebacate(DOS)is an organic ester compound,mainly used as a low-temperature plasticizer and synthetic antirust and cold-resistant ester lubricant base oil.This study discusses the use of synthesized molybdenum disulfide/C60(MoS_(2)/C_(60))composite particles as catalysts to synthesize a new type of DOS endowed with high lubricity.This was achieved through a catalytic esterification reaction between sebacic acid and 1-octanol.After the reaction,MoS_(2)/C_(60) was dispersed in situ in this novel DOS to form a suspension(MoS_(2)/C_(60)/DOS).The tribological properties of MoS_(2)/C_(60)/DOS were examined through high-frequency reciprocating friction and wear experiments,and the friction and wear mechanisms were analyzed.The results show that MoS_(2)/C_(60)/DOS can significantly enhance the antiwear and friction reduction performance compared to commercial DOS by 91% and 95%,respectively,achieving an ultra-low friction state with an average friction coefficient of 0.006.A friction film containing elements such as Fe,O,C,Mo,and S forms on the friction surface,significantly improving the lubrication state of the friction interface and achieving low friction.

关 键 词：MoS_(2)/C_(60) catalytic esterification dioctyl sebacate ultra-low friction 

分 类 号：TQ426[化学工程] TQ225.24