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首页> 外文期刊>Journal of Applied Polymer Science >Optimization of Amphiphobic Structural Surface Thickness in Relation to its Functionality on Stainless Steel Plates
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Optimization of Amphiphobic Structural Surface Thickness in Relation to its Functionality on Stainless Steel Plates

机译：不锈钢板上两性结构表面厚度的优化及其功能

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摘要

Fluorine-based amphiphobic coatings have been widely used in commercial textiles to provide water- and oil-repelling abilities. However, few reports from the literature survey have discussed the surface structural effects of the coated substrate on amphiphobicity. In this research, various thickness amphiphobic coatings based on mixed epoxy, tetraethylorthosilicate, and a particular alkoxysilane with fluorinated side chains (F-silane) were deposited on Grade 420 stainless steel plates. Film amphiphobicity is characterized by measuring the water and oil contact angles of the coating. Film morphology is examined using atomic force microscopy. The deposited films free of F-silane are thinner than 150 nm. The films become thick at high F-silane volume percentage with the surface cavities, ridges, and granules being masked out. On the addition of F-silane, the water contact angle of the deposited films increases up to 105° and then reaches a plateau of ~ 107° with increasing F-silane. In contrast, the oil contact angle increases up to 60° at first and then slowly declines with the F-silane concentration. The total drop of oil contact angle by ~ 20° was attributed to the masking out of surface features on film thickening. This indicates that the surface oleophobicity depends on surface structures. Therefore, improving surface amphiphobicity correlates with creating more refined multiscale surface structures during the industrial manufacturing process of steel plate, prior to surface modification by F-silane. VC 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 41003.
机译：氟基两性涂料已广泛用于商业纺织品中以提供拒水和拒油的能力。然而，文献调查的报道很少讨论涂覆的基材对两亲性的表面结构影响。在这项研究中，在420级不锈钢板上沉积了多种厚度的基于混合环氧树脂，原硅酸四乙酯和特殊的带有氟化侧链的烷氧基硅烷（F-硅烷）的两性涂层。薄膜两亲性的特征在于测量涂层的水和油接触角。使用原子力显微镜检查膜的形态。不含F-硅烷的沉积膜薄于150 nm。在高F-硅烷体积百分比的情况下，薄膜会变厚，并掩盖了表面空腔，凸脊和颗粒。添加F-硅烷后，沉积膜的水接触角增加到105°，然后随着F-硅烷的增加达到约107°的平稳期。相反，油接触角首先增加到60°，然后随着F-硅烷浓度的增加而缓慢下降。油接触角的总下降约20°归因于薄膜增厚时对表面特征的掩盖。这表明表面疏油性取决于表面结构。因此，改善表面的两亲性与在通过F-硅烷进行表面改性之前在钢板的工业制造过程中创建更精细的多尺度表面结构相关。 VC 2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2014，131，41003。

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