Biomimetic lubricant-grafted surfaces on laser-textured microwell arrays with multifunctionality  

作　　者：Xiaorui SONG Zhiqiang HOU Zhehao GAN Yuyao HU Hongyu ZHENG Yongling WU Mingming LIU 

机构地区：[1]Centre for Advanced Laser Manufacturing(CALM),School of Mechanical Engineering,Shandong University of Technology,Zibo 255000,China [2]School of Environmental and Material Engineering,Yantai University,Yantai 264405,China [3]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China

出　　处：《Friction》2024年第12期2707-2725,共19页摩擦（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.52205313);Natural Science Foundation of Shandong Province(ZR2022QE161),China Postdoctoral Science Foundation(2023M734093);the Tribology Science Fund of State Key Laboratory of Solid Lubrication(LSL-2312);Scientific Innovation Project for Young Scientists in Shandong Provincial Universities(2023KJ145,2023KJ148).

摘　　要：Recently,various slippery liquid-infused porous surfaces(SLIPS)have been fabricated for the protection of various materials.However,these SLIPSs are limited by their underlying storage structure and superficial lubricant layer,showing poor durability.Herein,inspired by the high-strength structure of Shell nacre’s“brick-mud”layer,we fabricated an all-inorganic composite coating by using wet chemically etched MXene as a brick and an aluminum phosphate binder(AP)as mud.Then,a series of microwell-array structures were designed and prepared on the coating via nanosecond ultrafast laser writing ablation technology.Subsequently,the textured surface was modified by a silane coupling agent.Vinyl-terminated polydimethylsiloxane(PDMS)was tightly grafted onto the porous surface through a thiol-ene click reaction to obtain lubricant grafted texture surface(LGTS).The prepared LGTS showed good lubrication properties for multiple phases,including various liquids,ice crystals,and solids.It exhibits excellent chemical stability and mechanical durability under deionized water impact,centrifugal test,strong acid solutions,anti/de-icing cycles,and high-intensity friction.Thus,the proposed strategy for constructing robust LGTS will greatly promote theoretical research on super wetting interfacial materials and their applications in the fields of antifouling,anti/de-icing,and lubricating protection.

关 键 词：laser texture LUBRICANT covalent grafting omniphobicity ANTI-ICING 

分 类 号：TH117[机械工程—机械设计及理论]