Spontaneous Self-healing Bio-inspired Lubricant-infused Coating on Pipeline Steel Substrate with Reinforcing Anti-corrosion,Anti-fouling,and Anti-scaling Properties  

作　　者：Hao Li Yujie Peng Kai Zhang Pengchang Li Lei Xin Xiaoli Yin Sirong Yu 

机构地区：[1]School of Material Science and Engineering,Shandong University of Science and Technology,Qingdao,266590,China [2]National Engineering Laboratory of Offshore Geophysical and Exploration Equipment,China University of Petroleum(East China),Qingdao,266580,China [3]College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao,266590,China [4]School of Materials Science and Engineering,China University of Petroleum(East China),Qingdao,266580,China

出　　处：《Journal of Bionic Engineering》2022年第6期1601-1614,共14页仿生工程学报（英文版）

基　　金：Natural Science Foundation(ZR2019BEM012);National Natural Science Foundation of China(51905315);Fundamental Research Funds for the Central Universities(20CX02316A);Opening Fund of National Engineering Laboratory of Offshore Geophysical and Exploration Equipment.

摘　　要：Superhydrophobic surfaces(SHS)and slippery lubricant-infused porous surfaces(SLIPS)attract great attention due to their multiple properties in both industries and our daily lives.Here,we first fabricated the SHS with micro-scale flower-like structures composed of nano-sheets on pipeline steel substrate.Then,we obtained the SLIPS by spin-coating lubricant into gaps of micro-scale flower-like structures,with the air still trapped among gaps of nano-sheets.The SLIPS shows excellent liquid repellency as the SHS.The SLIPS also shows stability after the scour of flowing water.These results of polarization curves(Tafel)and electrochemical impedance spectroscopies deduced the SLIPS with better and more stable anti-corrosion property than the SHS.Compared with the SHS,the lack of attachment and CaCO_(3) on the SLIPS indicates that the SLIPS demonstrates better anti-fouling and anti-scaling properties than the SHS.Moreover,the SLIPS shows promising wear resistance under the abrasion simulated by sandpaper compared with the SHS.Notably,the air trapped among nano-sheets is conducive to the lubricant flowing to the surface quickly,exhibiting spontaneous self-healing in atmosphere,even if part flower-like structures of the SLIPS subject to damage with the lubricant consumed after scratched.

关 键 词：Pipeline steel Bioinspiration Slippery surface SELF-HEALING 

分 类 号：TG174[金属学及工艺—金属表面处理]