Bormashenko Edward, Stein Tamir, Whyman Gene, Bormashenko Yelena, Pogreb Roman
The College of Judea and Samaria, the Research Institute, 44837, Ariel, Israel.
Langmuir. 2006 Nov 21;22(24):9982-5. doi: 10.1021/la061622m.
A superhydrophobic surface is produced from industrial grade polymer materials. The surface comprises partly disordered triple-scaled arrays of polyvinylidene fluoride (PVDF) globules. An inherently superhydrophobic metallic surface is produced with polymer template. The mathematical model based on the Cassie-Baxter hypothesis of air trapping under a water drop is built, which gives the apparent contact angle on the manifold-scaled interface. The presence of several scales itself is not a sufficient condition of hydrophobicity of inherently wettable surfaces. The geometrical features favoring the increase of the vapor-water interface fraction are necessary for this phenomenon.
超疏水表面由工业级聚合物材料制成。该表面包含部分无序的聚偏二氟乙烯（PVDF）球粒的三重尺度阵列。利用聚合物模板制备出具有固有超疏水性的金属表面。基于水滴下空气捕获的卡西 - 巴克斯特假设建立了数学模型，该模型给出了多尺度界面上的表观接触角。对于固有可湿性表面，多个尺度的存在本身并不是疏水性的充分条件。有利于气 - 水界面分数增加的几何特征对于这种现象是必要的。
