超疏水涂料在自清洁与防腐蚀方面的应用

Study on Self Cleaning and Anti-Corrosion with Super Water-Repellent Coating

选取实验室自制环保型超疏水涂料,主要从所制备涂料涂层的自清洁性和防腐蚀性两方面来研究此涂料的实际应用价值和开发前景.以玻璃片和金属片为基底通过制备超疏水涂料并跟踪观察其置于自然条件下的表面清洁程度和防腐蚀状况,以接触角的大小和稳定性作为此涂料在自清洁性和防腐蚀性能方面的主要指标.实验结果表明,在水晶液蜡涂料和空白基片的对比下,超疏水涂料构建的涂层表面,在自然条件下清洁程度和防腐蚀性能最佳,说明了实验室自制超疏水涂料在自清洁和防腐蚀性能方面的优势,也证明了其在自清洁和防腐蚀材料领域的研究价值.

Glass substrates and metal substrates coated with different water contact angle-materials are fabricated,and the direct correlation between the water contact angle and the standing time in a natural environment is investigated. As a result,the surface cleanliness increases and the surface properties remain unchanged with the increase of the water contact angle of the substrates. The rough surface of the substrates,coated with dispersion containing super water-repellent silica nanoparticles may decrease contact area with water,resulting in anti-corrosion and subsequently increasing the surface cleanliness. Herein,we also briefly review our papers where the super water-repellent surfaces are applied to drag deduction in tubes and yachts. We also briefly review recent papers on self cleaning and anti-corrosion by super water-repellent surfaces in this paper.