Meena Mukesh Kumar, Tudu Balraj Krishnan, Kumar Aditya, Bhushan Bharat
Department of Chemical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India.
Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics, The Ohio State University, Columbus, OH 43210, USA.
Philos Trans A Math Phys Eng Sci. 2020 Mar 20;378(2167):20190446. doi: 10.1098/rsta.2019.0446. Epub 2020 Feb 3.
In this study, a superhydrophobic coating on steel surface has been developed with polyurethane, SiO nanoparticles and hexadecyltrimethoxysilane by using a spin-coating technique. Characterization of the coated steel surface was done by using the contact angle measurement technique, scanning electron microscopy and Fourier transform infrared spectroscopy. With a water tilt angle of 4° ± 2° and static contact angle of 165° ± 5°, the coated surface shows a superhydrophobic and self-cleaning nature. Chemical, thermal, mechanical stability tests and droplet dynamic studies were done to evaluate performance of the coating. Excellent self-cleaning, anti-fogging and anti-corrosion properties of coated steel surfaces make them ideal for industrial applications. This article is part of the theme issue 'Bioinspired materials and surfaces for green science and technology (part 3)'.
在本研究中，通过旋涂技术，利用聚氨酯、SiO纳米颗粒和十六烷基三甲氧基硅烷在钢表面制备了一种超疏水涂层。采用接触角测量技术、扫描电子显微镜和傅里叶变换红外光谱对涂层钢表面进行了表征。涂层表面的水倾斜角为4°±2°，静态接触角为165°±5°，呈现出超疏水和自清洁特性。进行了化学、热、机械稳定性测试以及液滴动力学研究，以评估涂层的性能。涂层钢表面优异的自清洁、防雾和防腐性能使其成为工业应用的理想选择。本文是主题为“绿色科学与技术的仿生材料和表面（第3部分）”的一部分。
