Hexagonal boron nitride based slippery liquid infused porous surface with anti-corrosion, anti-contaminant and anti-icing properties for protecting magnesium alloy

作     者：Wenhao Yan Shuaiya Xue Xuerui Zhao Wei Zhang Jian Li Wenhao Yan;Shuaiya Xue;Xuerui Zhao;Wei Zhang;Jian Li

作者机构：Key Laboratory of Eco-Functional Polymer Materials of the Ministry of EducationCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2024年第35卷第4期

页      面：532-538页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：financially supported by National Natural Science Foundation of China (Nos.51872245, 52103269) the Natural Science Key Foundation of Gansu Province China (No.23JRRA680) the Excellent Doctoral Student Project of Natural Science Foundation of Gansu Province (No.23JRRA695) the Gansu Province University Industrial Support Plan Project (No.2023CYZC-16) the Science and Technology Development Plan Project of Lanzhou City(No.2022-2-78) the Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials and Longyuan Young Talent for financial support 

主　　题：Anti-corrosion Mg alloy Hexagon boron nitride Polypyrrole SLIPS 

摘      要：In an era where the concept of green development is deeply rooted, magnesium(Mg) alloy as a light metal has a long-term development prospect in the process of energy saving, emission reduction and environmental improvement. However, anti-corrosion performance of Mg alloy is poor due to the high chemical activity and low equilibrium potential, which limits the development of Mg alloy ***, three-dimensional mesopore hollow polypyrrole spheres(MHPS) were prepared, and the MHPS was inserted into the middle of the stacked hexagon boron nitride(h-BN) lamellae, which allowed the hBN to be separated forming a further composite with abundant pore structure. Subsequently, the MHPS/hBN-OH composite was uniformly sprayed on the Mg alloy surface via simple spraying method to form the superhydrophobic surface(SHS). Finally, the slippery liquid infused porous surface(SLIPS) was successfully fabricated by applying drops of silicone lubricant on the superhydrophobic coating surface. After a series of characterization and testing, the results showed that the stacking of h-BN lamellae was significantly reduced after h-BN was successfully embedded by MHPS. In addition, the fabricated SLIPS have excellent self-cleaning, mechanical stability, anti-icing and anti-corrosion properties. Therefore, the method of embedding polymer microspheres not only offers a new strategy for h-BN exfoliation, but also the successful prepared SLIPS largely retards the corrosion of Mg alloy while providing new ideas for the development of SLIPS.