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使用低密度聚乙烯、聚甲基丙烯酸甲酯和疏水性SiO2为原料,通过简单的共混涂膜方法在玻璃基底上制得了具有超疏水性能的聚乙烯/疏水性SiO2和聚甲基丙烯酸甲酯/疏水性SiO2复合涂层;用接触角测量仪、扫描电子显微镜、X-射线光电子能谱仪等分析手段对涂层的润湿性能、微观结构以及表面化学成分等进行了表征。结果表明,所制备的两种聚合物/疏水性SiO2复合涂层的静态水接触角都超过150°,滚动角低至3.0°。聚合物和疏水性SiO2共混涂膜后形成了类似于荷叶的微纳米二元结构,是其表面具有优异超疏水性能的主要原因。
Using low density polyethylene, polymethylmethacrylate and hydrophobic SiO2 as raw materials, polyethylene / hydrophobic SiO2 and polymethylmethacrylate with superhydrophobic properties were prepared on a glass substrate by a simple blending coating method Ester / hydrophobic SiO 2 composite coating. The wettability, microstructure and surface chemical composition of the coatings were characterized by means of contact angle measurement, scanning electron microscopy and X-ray photoelectron spectroscopy. The results show that the prepared two polymer / hydrophobic SiO2 composite coatings have static water contact angles in excess of 150 ° and roll angles as low as 3.0 °. Polymers and hydrophobic SiO2 blend film formed after the lotus leaf-like micro-nano binary structure, is the surface of the superhydrophobic properties of the main reasons.