A simple and feasible method is proposed for the fabrication of a super-hydrophobic coating on cotton fabric via sol–gel process. The wettability of the coating was investigated by water contact angle measurement (WCA). WCA of coated fabric reached up to 161.5 ± 1.02°. The tensile strength and Young’s modulus and mechanical properties of coated fabric is quite promising than uncoated fabric. Moreover, the coated fabric can effectively separate oil–water mixtures through an ordinary filtering process with a separation efficiency of 99%. After 15 cycles of separation the contact angle changes to 155.6 ± 0.98° only and material maintained its super-hydrophobic property. The durability of the coating was evaluated by exposing the specimen at harsh environments like acidic, alkaline, saline, and ultraviolet irradiation was conducted. The tear test was evaluated using the adhesive tape test, abrasion resistance test apart from washing stability and these results suggested that the coating was sufficiently stable. The coated fabric free of fluorine and chlorine can be effectively utilized in various fields.

中文翻译：

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HMDS–GPTMS改性的二氧化钛二氧化硅纳米复合材料：油水分离的新材料

提出了一种简单可行的方法，通过溶胶-凝胶法在棉织物上制备超疏水涂层。通过水接触角测量（WCA）研究了涂层的润湿性。涂层织物的WCA达到161.5±1.02°。涂层织物的拉伸强度，杨氏模量和机械性能比未涂层织物有很大希望。此外，该涂层织物可以通过常规过滤过程有效分离油水混合物，分离效率为99％。分离15个循环后，接触角仅变为155.6±0.98°，并且材料保持其超疏水性。通过将样品暴露在酸性，碱性，盐水和紫外线照射等恶劣环境中来评估涂层的耐久性。除了使用洗涤稳定性以外，还使用胶带试验，耐磨性试验来评估撕裂试验，这些结果表明涂层足够稳定。不含氟和氯的涂层织物可以有效地用于各种领域。