功能化氧化石墨烯-酞菁复合物的润滑特性  

Lubricating Properties of Functionalized Graphene Oxide-Phthalocyanine Composite

作　　者：郭玉梅 谈莉 杨红梅 李久盛[1] 曾祥琼 GUO Yumei;TAN Li;YANG Hongmei;LI Jiusheng;ZENG Xiangqiong(Advanced Lubricating Materials Laboratory,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 200120,China;University of Chinese Academy of Sciences,Beijing 100049,China;Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences,Shanghai 200032,China)

机构地区：[1]中国科学院上海高等研究院先进润滑材料实验室,上海200120 [2]中国科学院大学,北京100049 [3]中国科学院上海有机化学研究所,上海200032

出　　处：《润滑与密封》2021年第10期50-58,共9页Lubrication Engineering

基　　金：国家自然科学基金项目(21703279);上海光源同步辐射BL08U1A(2018 SSRF PT 004843).

摘　　要：以无金属酞菁复配胺边缘功能化氧化石墨烯制备一种环境友好型润滑油添加剂,采用SEM、FTIR、Raman、TGA验证其结构。采用UV-Vis考察其在偏苯三酸酯TM320基础油中的分散性,发现胺边缘功能化氧化石墨烯-酞菁复合物分散稳定性好。利用四球摩擦磨损试验机MS-10A评价其在偏苯三酸酯TM320基础油中的润滑特性,结果发现其具有优异的减摩抗磨性能,摩擦因数和磨斑直径分别较纯基础油下降了25.3%和24.1%。通过XANES和SEM-EDS分析发现,摩擦表面的摩擦膜由功能化氧化石墨烯-酞菁复合物组成,表明可能是酞菁的强配位空穴和胺边缘功能化氧化石墨烯的强吸附协同增效,使其在摩擦过程中能在摩擦副表面快速形成有效的界面润滑膜。A environmentally friendly lubricant additive was prepared with metal-free phthalocyanine combining with amine-edge-functionalized graphene oxide.The structure was characterized by SEM,FTIR,Raman,and TGA.The dispersion stability investigated by UV-Vis indicates that the newly developed additive has good dispersion stability in trimellitate TM320 base oi.The four-ball friction and wear tester MS-10A was used to evaluate its lubricating properties in trimellitate TM320 base oil.It is found that the amine-edge-functionalized graphene oxide combining phthalocyanine complex has excellent friction reducing and anti-wear performance,the friction coefficient and wear scar diameter are 25.3%and 24.1%lower than pure base oil respectively.Through XANES and SEM-EDS analysis,it is found that the friction film is composed of functionalized graphene oxide-phthalocyanine complex,indicating that it may be the strong coordination holes of phthalocyanine and the strong adsorption of amine-edge functionalized graphene oxide,an effective interfacial lubricating film is quickly formed on the surface of the friction pair during the friction process.

关 键 词：氧化石墨烯 酞菁 摩擦学性能 润滑 

分 类 号：TH117.2[机械工程—机械设计及理论]