Core-rim structured MXene@SiO_(2)composites as oil-based additives for enhanced tribological properties

作     者：Yuhong CUI Shenghua XUE Tiantian WANG Shujuan LIU Qian YE Feng ZHOU Weimin LIU Yuhong CUI;Shenghua XUE;Tiantian WANG;Shujuan LIU;Qian YE;Feng ZHOU;Weimin LIU

作者机构：State Key Laboratory of Solidification ProcessingCenter of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2024年第12卷第8期

页      面：1728-1740页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China(51972272,U21A2046) the Western Light Project of CAS(xbzg-zdsys-202118) the Research Fund of the State Key Laboratory of Solidification Processing(NPU),China(2023-TS-03) 

主　　题：Ti3C2Tx MXene SiO_(2)nanoparticles lubricating additives protective film 

摘      要：Herein,we have prepared SiO_(2)particles uploaded MXene nanosheets via in-situ hydrolysis of *** to the large number of groups at the edges of MXene,SiO_(2)grows at the edges first,forming MXene@SiO_(2)composites with a unique core-rim *** tribological properties of MXene@SiO_(2)as lubricating additive in 500 SN are evaluated by *** results show that MXene@SiO_(2)can reduce the friction coefficient of 500 SN from 0.572 to 0.108,the wear volume is reduced by 73.7%,and the load capacity is increased to 800 *** superior lubricity of MXene@SiO_(2)is attributed to the synergistic effect of MXene and SiO_(2).The rolling friction caused by SiO_(2)not only improves the bearing capacity but also increases the interlayer distance of MXene,avoiding accumulation and making it more prone to interlayer ***@SiO_(2)is adsorbed on the friction interface to form a physical adsorption film and isolate the friction *** addition,the high temperature and high load induce the tribochemical reaction and form a chemical protection film during in the friction ***,the presence of these protective films results in MXene@SiO_(2)having good lubricating properties.