材料科学
涂层
接触角
粘附
复合材料
超疏水涂料
基质(水族馆)
表面改性
化学工程
海洋学
地质学
工程类
作者
Yujia Wang,Ming Zhang,Guanzhong Ding,Guang Pan,Rui Zheng,Chao‐Jun Li,Wei Wang,Hao Zhang,Qilong Sun,Xiangjin Zhao,Li Liu
标识
DOI:10.1016/j.colsurfb.2023.113256
摘要
A central challenge in the study of clinical medicine is to reduce the infection rate of implants without affecting cell adhesion and reproduction. For the first time, we prepared a robust and stable superhydrophobic Zn/pDop/SA coating on Zr56Al16Co28 bulk metallic glass by electrodeposition that exhibits a maximum water contact angle of 158° and a sliding angle less than 1°. The growth of the coating micro-nano structure was controlled by changing the electrodeposition process parameters. The coating showed excellent antimicrobial adhesion properties in the environment to avoid bacteria adhesion and can transform from superhydrophobic to hydrophilic in body fluids to promote cell adhesion. The biodegradation of the Zn crystal structure was responsible for the hydrophobic transformation of the coating and the rough surface after biodegradation provided a point of adhesion for the cells. By designing a uniform crater structure on the substrate as an "armour" and co-depositing dopamine into the coating, the coating's wear resistance was greatly improved. The superhydrophobic coating can maintain stable superhydrophobicity in high temperature environment, air and UV irradiation. This study opens new horizons for the surface modification of bulk metallic glass and promotes its application in the medical field.
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