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首页 > 资料下载 > 浸渍提拉镀膜仪文献:浸涂溶胶凝胶膜的蒸发驱动自组装

浸渍提拉镀膜仪文献:浸涂溶胶凝胶膜的蒸发驱动自组装

点击次数:342 发布时间:2020/5/26
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In this review, we discuss the spontaneous pattern formation of sol­gel dip coating films induced by solvent evaporation, as a novel patterning technique. Linearly arranged striations and cell-like patterns were obtained upon withdrawing the substrate from the coating solution at increasing withdrawal rates. Such highly ordered micropatterns formed by the Bénard­Marangoni convection mechanism triggered by solvent evaporation. In contrast, dip-coating at rates below 1.0cm/min generated periodic stripe patterns arranged on the surface of the films that were perpendicular to the substrate withdrawal direction. Such a formation design was attributed to the onset of capillary flow of the coating solution at the meniscus induced by solvent evaporation.

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