Leaf vein-inspired transparent superhydrophobic coatings with high stability

IF 7.4 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Science China Materials Pub Date : 2025-03-10 DOI:10.1007/s40843-024-3269-6

Hang Li (, ), Zehao Wang (, ), Hongyi Tu (, ), Min Chen (, ), Yi Wu (, ), Limin Wu (, )

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Abstract

Transparent superhydrophobic coatings hold significant potential for applications in architectural glass and optoelectronic devices. However, obtaining good compatibility between highly transparent, low haze and excellent mechanical stability in a superhydrophobicity coating remains a significant challenge. Inspired by the natural protection mechanism of the hierarchical structure of leaf veins, we have designed and fabricated transparent superhydrophobic coatings with highly detailed hierarchical vein-like ridges via a template-assisted multi-mask photolithography and inverted mold process combined with a spraying technique. The coated glass exhibited not only outstanding superhydrophobicity, with contact angle ⩾ 160° and sliding angle ⩽ 1.5° but also a high optical transmittance of 88.4% and a low haze of 8.1%, as well as remarkable mechanical durability and weather resistance.

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叶脉启发透明超疏水涂层，具有高稳定性

透明超疏水涂层在建筑玻璃和光电子器件中具有巨大的应用潜力。然而，在超疏水性涂层中获得高透明度、低雾度和优异的机械稳定性之间的良好相容性仍然是一个重大挑战。受叶脉分层结构的自然保护机制的启发，我们通过模板辅助多掩模光刻和倒模工艺结合喷涂技术，设计并制造了具有高度详细的分层脉状脊的透明超疏水涂层。涂层玻璃不仅表现出出色的超疏水性，接触角小于160°和滑动角≥1.5°，而且还表现出88.4%的高光学透过率和8.1%的低雾度，以及卓越的机械耐久性和耐候性。

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来源期刊

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.