仿生超疏水微纳米结构的制备与分析

Preparation and Analysis of Bionic Super-Hydrophobic Microstructures and Nanostructures

摘要: 受超疏水低粘附荷叶启发，经过两次复型处理得到类荷叶表面微纳米结构，借助蜡烛灰纳米碳的沉积增强其表面微观结构，再利用绿色生物蜡修饰改变其表面化学组成，构筑具有超疏水低粘附自清洁表面。实验结果表明：制备的材料静态水滴接触角达到151.8˚，滚动角约5˚，展现出良好的“荷叶效应”；同时，制备所得的表面在酸碱盐等物质存在下有良好的耐腐蚀性，在进行水流冲击实验30 min后的情况下，依然保持着表面疏水性的稳定性。

Abstract: Inspired by the super hydrophobic and low adhesion lotus leaf, the micro nano structure of lotus leaf like surface was obtained after twice replica treatment. The surface micro structure was en-hanced by the deposition of candle ash nano carbon, and then the chemical composition of its sur-face was modified by green biological wax to build a self-cleaning surface with super hydrophobic and low adhesion. The experimental results show that the static water drop contact angle of the prepared material reaches 151.8˚, and the rolling angle is about 5˚, showing a good “lotus leaf effect”. At the same time, the prepared surface has good corrosion resistance in the presence of acid, alkali, salt and other substances, and it still maintains the stability of surface hydrophobicity 30 minutes after the water impact test.