A method for preparing superhydrophobic surfaces containing guiding lines that control water motion is described. The background surfaces exhibit contact angles of θ_A/θ_R = 173°/171°, and the guiding lines are also hydrophobic (θ_A/θ_R = 104°/102°). The low-contact-angle hysteresis allows facile water motion. The sequence of steps used to prepare these surfaces is central to their success, is designed to minimize defects, and involves only two inexpensive and fluorine-free reagents: methyltrichlorosilane and dimethyldichlorosilane. Examples of patterned surfaces that direct water motion are described. The disparity in receding contact angles is identified as the key parameter for guided motion.

中文翻译：

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超疏水，低磁滞构图化学，用于水滴处理

描述了一种制备超疏水表面的方法，该表面包含控制水运动的引导线。背景表面显示出的接触角θ_甲/θ _{- [R} = 173°/ 171°，和引导线也疏水（θ_甲/θ _{- [R} = 104°/ 102°）。低接触角磁滞允许轻松进行水运动。制备这些表面的步骤顺序是其成功的关键，旨在最大程度地减少缺陷，并且仅涉及两种廉价且不含氟的试剂：甲基三氯硅烷和二甲基二氯硅烷。描述了引导水运动的图案化表面的示例。后退接触角的差异被确定为引导运动的关键参数。