Hossain Mohammad Motaher, Lokasani Vinay Reddy
Department of Mechanical & Industrial Engineering, Texas A&M University-Kingsville, Kingsville, TX 78363, USA.
Conf Proc Soc Plast Eng. 2021 May;2021:268-274.
Introduction of surface textures has long been used to improve the hydrophobicity of solid materials. This study focusses on understanding the effects of various micro-texture geometries on the hydrophobicity of textured polymer surfaces. Square pillar, cylindrical, hemispherical and conical surface features, both protrusion and cavity, are considered in this study for two polymers. Employing the well-known models, the study shows that introducing textures on polymer surfaces generally increases the contact angle and, therefore, improves the hydrophobicity of polymers. The effect of surface texture on hydrophobicity significantly varies with texture geometry and dimension. The study provides useful guidelines for improving hydrophobicity of polymers by introducing textures on the surface.
引入表面纹理长期以来一直被用于改善固体材料的疏水性。本研究聚焦于理解各种微纹理几何形状对纹理化聚合物表面疏水性的影响。本研究针对两种聚合物考虑了方形柱体、圆柱体、半球体和圆锥体表面特征，包括凸起和凹陷。通过使用知名模型，该研究表明在聚合物表面引入纹理通常会增加接触角，从而提高聚合物的疏水性。表面纹理对疏水性的影响会因纹理几何形状和尺寸的不同而有显著差异。该研究为通过在表面引入纹理来提高聚合物的疏水性提供了有用的指导方针。
