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首页> 外文期刊>Langmuir: The ACS Journal of Surfaces and Colloids >Transparent Superhydrophobic/Translucent Superamphiphobic Coatings Based on Silica?Fluoropolymer Hybrid Nanoparticles
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Transparent Superhydrophobic/Translucent Superamphiphobic Coatings Based on Silica?Fluoropolymer Hybrid Nanoparticles

机译：基于二氧化硅-含氟聚合物杂化纳米粒子的透明超疏水/半透明超疏水涂层

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摘要

This paper describes a simple approach to prepare a transparent superhydrophobic coating and a translucent superamphiphobic coating via spraying silica? fluoropolymer hybrid nanoparticles (SFNs) without any preor post-treatment of substrates; these nanoparticles create both microscale and nanoscale roughness, and fluoropolymer acts as a low surface energy binder. We also demonstrate the effects of varying the concentration of the SFN sol on the water and hexadecane repellency and on the transparency of the coated glass substrates. An increase in the concentration of the sol facilitates the transition between the superhydrophobic/transparent and superamphiphobic/translucent states. This transition results from an increase in the discontinuities in the three-phase (solid?liquid?gas) contact line and in the light scattering properties due to micropapillae tuned by varying the concentration of the sol. This versatile and controllable approach can be applied to a variety of substrates over large areas and may provide a wide range of applications for self-cleaning coatings of optoelectronics, liquid-repellent coatings, and microfluidic systems.
机译：本文介绍了一种通过喷涂二氧化硅来制备透明超疏水涂层和半透明超疏水涂层的简单方法。含氟聚合物杂化纳米颗粒（SFN），无需对基材进行任何前处理或后处理;这些纳米粒子会同时产生微米级和纳米级的粗糙度，并且含氟聚合物可作为低表面能粘合剂。我们还证明了改变SFN溶胶的浓度对水和十六烷的排斥性以及对涂覆的玻璃基板的透明度的影响。溶胶浓度的增加促进了超疏水/透明和超两亲/半透明状态之间的过渡。这种转变是由于三相（固体-液体-气体）接触线的不连续性增加以及由于通过改变溶胶浓度而调节的微乳头导致的光散射特性所致。这种通用且可控制的方法可以应用于大面积的各种基材，并且可以为光电的自清洁涂层，拒液涂层和微流体系统提供广泛的应用。

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