【摘要】 有机污秽沉积并浸润于甲基二氧化硅超疏水涂层表面，将导致涂层的自清洁性能下降，进而导致涂层在脏污湿润环境条件下的绝缘强度下降。目前尚且缺少关于有机污秽浸润对于甲基二氧化硅超疏水涂层表面绝缘强度影响特性的研究。基于此，制备具有绝缘性能的甲基二氧化硅超疏水涂层样品，使用烷烃类有机物进行不同程度和方式的浸润后，为反映绝缘强度，测量了涂层样品在脏污湿润条件下的泄漏电流幅值。结果表明，在试验条件下，将有机污秽浸润面积增大至3倍时，甲基二氧化硅超疏水涂层表面泄漏电流幅值升高50%以上；增大有机污秽位置的分散程度，涂层泄漏电流幅值下降了16%左右。重度有机浸润的试验条件下，甲基二氧化硅超疏水涂层水滴静态接触角和滚动角分别下降10°和增大7°以上。更多还原

【Abstract】 The deposition and infiltration of organic pollutants on the surface of methyl silica superhydrophobic coatings will lead to a decrease in the self-cleaning properties of the coatings, which in turn will lead to a decrease in the insulation strength of the coatings under dirty and wet environmental conditions. There is a lack of research on the effect of organic fouling on the insulation strength of methyl silica superhydrophobic coatings. The insulation strength of the coating samples under dirty and wet conditions is reflected by measuring the leakage current amplitude of the coating samples after they are wetted with alkane organic substances in different degrees and ways. The results show that the leakage current amplitude of the surface of methyl silica superhydrophobic coating increases by more than 50% when the infiltration area of organic pollution is increased to 3 times under the experimental conditions. The leakage current amplitude of the coating is decreased by about 16% by increasing the dispersion degree of organic pollution sites. Under the experimental conditions of heavy organic infiltration, the static contact angle and rolling angle of methyl silica super-hydrophobic coating drops are decreased by 10° and increased by more than 7° respectively.更多还原