Abstract Self-cleaning materials with photoinduced hydrophilicity have received significant attention. These materials have been applied to rigid and flat substrates such as glasses and ceramics; however, their utilization on flexible substrates is necessary for their future applications. Herein, the preparation of a flexible and transparent self-cleaning film with photoinduced hydrophilicity is reported. The self-cleaning film was developed using three layers, namely, TiO2 as a cleaning layer, phosphonic-acid-modified polysilsesquioxane (PAPS) as a protective and anchoring layer, and poly(bisphenol A-co-epichlorohydrin) (PBE) as a plastic supporting layer. The surface morphology, transmittance, photoinduced hydrophilicity, and organic dye photodegradation ability of the self-cleaning film were evaluated. The free-standing film demonstrated high flexibility and transparency. Moreover, water contact angle of this TiO2/PAPS/PBE film changed to ~5° from 34° under UV irradiation. Furthermore, durability of the film was investigated via photocatalytic tests by examining the water contact angle, degradation of methylene blue, and appearance of the film under conditions that replicated a service life of one year. The TiO2/PAPS/PBE film exhibited photocatalytic activity and its appearance was superior to that of the TiO2/PBE film.

中文翻译：

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包含膦酸改性聚倍半硅氧烷锚定二氧化钛的具有光致亲水性的柔性自清洁膜的表征

摘要 具有光致亲水性的自清洁材料受到了广泛的关注。这些材料已应用于刚性和平面基板，如玻璃和陶瓷；然而，它们在柔性基板上的使用对于它们未来的应用是必要的。本文报道了一种具有光致亲水性的柔性透明自清洁薄膜的制备。自清洁膜使用三层开发，即TiO2作为清洁层，膦酸改性的聚倍半硅氧烷（PAPS）作为保护和锚定层，聚（双酚A-共-表氯醇）（PBE）作为塑料支撑层。评价了自洁膜的表面形貌、透光率、光致亲水性和有机染料光降解能力。独立式薄膜表现出高度的柔韧性和透明度。此外，在紫外线照射下，这种 TiO2/PAPS/PBE 薄膜的水接触角从 34° 变为 ~5°。此外，通过光催化试验研究了薄膜的耐久性，通过检查水接触角、亚甲蓝的降解以及在复制一年使用寿命的条件下薄膜的外观。TiO2/PAPS/PBE薄膜表现出光催化活性，其外观优于TiO2/PBE薄膜。以及在复制一年使用寿命的条件下薄膜的外观。TiO2/PAPS/PBE 薄膜表现出光催化活性，其外观优于 TiO2/PBE 薄膜。以及在复制一年使用寿命的条件下薄膜的外观。TiO2/PAPS/PBE 薄膜表现出光催化活性，其外观优于 TiO2/PBE 薄膜。