Zhang Youfa, Yao Daozhou, Wang Shanlin, Xiao Zhen, Yu Xinquan
Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University Nanjing 211189 P. R. China
School of Material Science and Engineering, Southwest University of Science and Technology Mianyang 621010 PR China.
RSC Adv. 2018 Oct 26;8(63):36375-36382. doi: 10.1039/c8ra06942e. eCollection 2018 Oct 22.
In recent years, there have been great achievements in superhydrophobic coatings. However, there are still some barriers restricting superhydrophobic coatings in practical applications, such as widely used organic solvents and poor oleophobicity. In this study, we proposed a method for fabricating absolutely waterborne superamphiphobic coatings in two steps. Firstly, we synthesized the waterborne SiO sol using methyltriethoxysilane, and then the SiO sol was modified in an aqueous system with a fluorocarbon surfactant. The results showed that the coating had contact angles of 160°, 153° and 150° and sliding angles of 1°, 4.7° and 6.3° with respect to water, soybean oil and hexadecane. Moreover, the coating could withstand 300 °C heating and immersion in various corrosive solutions for several hours. Furthermore, it is worth mentioning that the waterborne coating showed excellent performances in antifouling, self-cleaning, and damp-proof fields.
近年来，超疏水涂层取得了巨大成就。然而，在实际应用中仍存在一些限制超疏水涂层的障碍，如广泛使用的有机溶剂和疏油性差。在本研究中，我们提出了一种两步法制备完全水性超双疏涂层的方法。首先，我们用甲基三乙氧基硅烷合成了水性SiO溶胶，然后在水性体系中用氟碳表面活性剂对SiO溶胶进行改性。结果表明，该涂层对水、大豆油和十六烷的接触角分别为160°、153°和150°，滑动角分别为1°、4.7°和6.3°。此外，该涂层能够承受300°C的加热以及在各种腐蚀性溶液中浸泡数小时。此外，值得一提的是，水性涂层在防污、自清洁和防潮领域表现出优异的性能。
