Lignin composite ionic liquid lubricants with excellent anti-corrosion,anti-oxidation,and tribological properties  

作　　者：Chaoyang ZHANG Zhiquan YANG Qing HUANG Xingwei WANG Wufang YANG Chunyu ZHOU Bo YU Qiangliang YU Meirong CAI Feng ZHOU 

机构地区：[1]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]PetroChina Lanzhou Lubricating Oil R&D Institute,Lanzhou 730060,China [3]Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing,Yantai 264006,China [4]Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering,Yantai 264006,China

出　　处：《Friction》2023年第7期1239-1252,共14页摩擦（英文版）

基　　金：financial support from the National Key R&D Program of China(2021YFA0716304);the National Natural Science Foundation of China(52075524,21972153,and U21A20280);the Youth Innovation Promotion Association of CAS(2022429 and 2018454);Gansu Province Science and Technology Plan(20JR10RA060 and 20JR10RA048);LICP Cooperation Foundation for Young Scholars(HZJJ21-06).

摘　　要：A new type of lubricating material(BTA-P_(4444)-Lig)was synthesized by combining lignin with tetrabutylphosphorus and benzotriazole.The tribological properties,corrosion resistance,and anti-oxidation properties of BTA-P_(4444)-Lig as a lubricant were investigated.The lubricating material exhibits excellent friction reduction and wear resistance,as well as good thermal stability and excellent oxidation resistance.Mechanistic analysis reveals that the active elements N and P in the lubricating material react with the metal substrate,and the reaction film effectively blocks direct contact between the friction pairs,affording excellent friction reduction and wear resistance.At the same time,the phenolic hydroxyl group in lignin reacts with oxygen free radicals to form a resonance-stable semi-quinone free radical,which interrupts the chain reaction and affords good anti-oxidant activity.

关 键 词：LIGNIN lubrication ionic liquid ANTI-OXIDANT 

分 类 号：TE624.8[石油与天然气工程—油气加工工程]