材料科学
制作
纳米技术
纳米材料
复合材料
接触角
环境友好型
超疏水涂料
涂层
生态学
医学
生物
病理
替代医学
作者
Sedef Ilk,Nusret Celik,Mahmut Ruzi,M. Serdar Onses
标识
DOI:10.1016/j.surfcoat.2020.126543
摘要
Solution-phase deposition of nanomaterials represents a highly promising technology with strong industrial application potential for the fabrication of superhydrophobic surfaces. An important barrier towards the adaptation of such materials and processes in a broad range of applications is the limited mechanical durability of the nanostructures. Herein, we present a universal solution to this challenge by benefiting from the unique micro-structure of paper. Our approach is based on transferring the structure of paper into a target material, to form a mechanical protection layer for nanomaterials that were deposited from solution-phase, i.e. spray-coating. We demonstrate this concept through the transfer of the structure of paper to a free-standing PDMS film using a simple molding process. Spraying a dispersion of alkyl-silane functionalized silica nanoparticles on the structured free-standing film results in a hierarchically structured superhydrophobic surface with a water contact angle of 175° ± 2° and a sliding angle <2° ± 1°. The fabricated superhydrophobic surface displays high levels of mechanical, chemical and thermal stability. The robust, inexpensive, scalable, flexible, and environmentally friendly nature of the presented approach may be a key enabler in superhydrophobic coating applications. • Transferring the structure of paper as a generalizable strategy for fabrication of robust superhydrophobic surfaces • All-solution processable, inexpensive, scalable, and environmentally friendly fabrication • Inherently flexible coatings adaptable to virtually all types of substrates
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