Self-cleaning transparent superhydrophobic coatings through simple sol-gel processing of fluoroalkylsilane
Self-cleaning transparent superhydrophobic coatings through simple sol-gel processing of fluoroalkylsilane
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DOI：
10.1016/j.apsusc.2015.06.016
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发表时间：
2015-10-01
影响因子：
6.7
通讯作者：
Xing, Ruimin
中科院分区：
文献类型：
--
作者：
Liu, Shanhu;Liu, Xiaojing;Xing, Ruimin
在与多尘超疏水表面接触时，移动的球形水滴收集灰尘颗粒并最终从表面流出。在此，我们报告了一个非常简单的一步法，通过溶胶-凝胶处理的长链氟烷基硅烷制备透明和自清洁的超疏水涂层。涂层表面呈现出类似于荷叶微观结构的粗糙、褶皱、丘状形态（粗糙的微尺度乳头），这是有希望的超疏水性。被困在粗糙的小山状结构中的气囊允许水滴呈圆形，接触角为169度。这些圆形水滴以小于5 °的倾斜度突然从涂层表面滚下。在滚降过程中没有观察到大的或小的水滴钉扎。研究了超疏水涂层的防尘（自清洁）性能、胸甲稳定性和抗水射流冲击的耐久性。(C)2015爱思唯尔B. V.保留所有权利。
Upon contact with a dusty superhydrophobic surface, moving spherical water drops collect the dust particles and eventually flow off the surface. Herein, we report a very simple one-step approach to fabricate transparent and self-cleaning superhydrophobic coatings via the sol-gel processing of long-chain fluoroalkylsilane. The coating surface exhibited a rough, wrinkled, hill-like morphology similar to the microstructure of the lotus leaf (rough micro-scale papillae), which is promising for superhydrophobicity. The air bags trapped in the rough, hill-like structure allow the water drops to take a round shape with a contact angle of 169 degrees. These round water drops abruptly roll off the coating surface at less than 5 of tilting. No major or minor water-drop pinning was observed during the roll off. The dust-repellent (self-cleaning) property, plastron stability, and durability against water-jet impact were examined on the superhydrophobic coatings. (C) 2015 Elsevier B.V. All rights reserved.