光學(xué)粘附力測量儀LSA100由LAUDA
浸漬提拉鍍膜儀文獻(xiàn):浸涂溶膠凝膠膜的蒸發(fā)驅(qū)動(dòng)自組裝
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北京東方德菲儀器有限公司
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114次
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1009次
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.