静电植绒法制备超疏水表面研究

Preparation of superhydrophobic surface by electrostatic flocking technology

利用静电植绒技术在纺织纤维表面构建粗糙结构,结合聚二甲基硅氧烷(PDMS)表面修饰,制备超疏水表面。利用接触角测试仪、马丁戴尔摩擦仪、扫描电镜对材料表面形貌与疏水性能进行测试与表征。结果表明,经PDMS修饰的植绒织物具有超疏水性,其与水滴的静态接触角达150°以上。利用静电植绒技术制备的超疏水表面具有良好的耐磨性,其中绒毛长度为0.6 mm时具有最佳的疏水、耐磨性能。

Electrostatic flocking technology is used to construct roughness on textile fiber. Polydimethylsiloxane （PDMS） is employed to modify the rough textile fiber and prepare the superhydrophobic surface. Contact angle tester, martindale friction tester and scanning electron microscopy are applied to characterize the morphology and hydrophobicity of the surface. The results indicate that the electrostatic flocking fabrics show superhydrophobicity and have water contact angles larger than 150°. At the same time, the obtained superdrophobic surface exhibits good abrasion resistance and durability. Optimal superhydrophobic and abrasion-resistant surface can be obtained when the flocking fluff is 0. 6 mm long.