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Multifunctional superhydrophobic coatings fabricated from basalt scales on a fluorocarbon coating base
Journal of Materials Science & Technology ( IF 10.9 ) Pub Date : 2021-01-24 , DOI: 10.1016/j.jmst.2020.12.022
Hongpeng Zheng , Li Liu , Fandi Meng , Yu Cui , Zhong Li , Emeka E. Oguzie , Fuhui Wang

Superhydrophobic coatings are increasingly being evaluated as anticorrosion interventions in exceedingly hydrated environments. However, concerns about their long-term durability and amenability to large-area applications in marine environments are still hindering commercial-scale deployment. This study is focused on development of easy-to-apply superhydrophobic coatings, with multifunctional capabilities, in order to extend the integrity and durability of the coatings in harsh marine environments. Here, a set of facile methods involving selective chemical etching using concentrated NaOH, as well as fluorination with perfluoropolyether methyl ester were adopted to fabricate a superhydrophobic surface on basalt scales, having the required rough hierarchical micro-nanotextured and low surface energy. The superhydrophobic basalt scales were subsequently aligned atop a fluorocarbon resin, pre-deposited on a metal substrate, to yield a multifunctional superhydrophobic coating (3 μL water droplet; contact angle = 165.1°, rolling angle = 0.7°), easily amenable to large surface area application and having excellent wear resistance, UV-aging resistance, salt spray resistance, corrosion resistance and antibacterial capabilities.



中文翻译:

在碳氟化合物涂料基底上由玄武岩鳞片制造的多功能超疏水涂料

超疏水性涂料正日益被评估为在过度水合的环境中的防腐措施。但是,对于它们的长期耐久性和在海洋环境中适合大面积应用的担忧仍在阻碍商业规模的部署。这项研究专注于开发具有多功能功能的易于应用的超疏水性涂料,以扩展在恶劣海洋环境中涂料的完整性和耐久性。在这里,采用了一套简便的方法,包括使用浓NaOH进行选择性化学蚀刻,以及用全氟聚醚甲酯进行氟化,以玄武岩规模制造超疏水表面,具有所需的粗糙的分级微纳米结构化和低表面能。

更新日期:2021-02-15
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