【摘要】 利用质量变化表示法评估化学腐蚀过程中超疏水涂层表面的腐蚀速率,并制备出一种在面漆中添加含氟类化合物的超疏水涂层。在室温环境下对涂覆含氟超疏水涂层、无氟超疏水涂层与RTV涂层的玻璃基板进行耐酸、碱、盐腐蚀性试验,并在试验中设置了不同的腐蚀时间、腐蚀介质浓度,研究化学腐蚀对超疏水涂层表面憎水性的影响。结果表明:超疏水涂层的耐酸、盐腐蚀性强于耐碱腐蚀性;添加含氟类化合物能够显著提升超疏水涂层的耐化学腐蚀性;含氟超疏水涂层的耐酸、碱腐蚀性与RTV涂层接近,但耐盐腐蚀性明显优于RTV涂层。更多还原

【Abstract】 The surface corrosion rate of superhydrophobic coating during chemical corrosion was evaluated by using mass change representation method, and a modified superhydrophobic coating by adding fluorine-containing compound to the final coating was proposed. Under room temperature, acid, alkali, and salt corrosion resistance experiments were conducted on glass substrates coated with fluorine-containing superhydrophobic coatings, fluorine-free superhydrophobic coatings, and RTV coatings, respectively, and different corrosion time and corrosive medium concentration were set. The results show that the acid and salt resistance of superhydrophobic coating is stronger than the alkali resistance. The addition of fluorine-containing compounds can significantly improve the chemical resistance of superhydrophobic coating. The acid and alkali resistance of the fluorine-containing superhydrophobic coatings is similar to that of the RTV coatings, but its salt corrosion resistance is significantly better than that of the RTV coatings.更多还原