Research Progress on Polymer-based Biomimetic Lubricants

An extremely low coefficient of friction can be achieved between biological interfaces,where biological lubricant plays an important role in the interfacial lubrication. Inspired by this,the design of bio-inspired lubricants and the study on the biomimetic lubrication mechanism have aroused widespread concern. This paper reviews the research progress of biomimetic polymer-based lubricants from two perspectives of structural bionics and functional bionics. In detail,the water-soluble polymers,polymer microgels,and polymer brushes modified composite microspheres are introduced respectively from aspects of design ideas,lubrication mechanism and applied research.