Abstract In this paper, silica dioxide nanoparticles (SiO2) were synthesized and functionalized with n-octadecyltriethoxysilane (OD) through a modified Stober method for the preparation of organic–inorganic hybrid micro-nanoparticles. Organic–inorganic hybrid micro-nanoparticles were applied onto the polyester (PET) fabric via a conventional “dipping–drying” process for the fluoro-free water-repellent textile materials. The coated PET fabric surface showed micro/nano-structures and exhibited hydrophobic behavior with water contact angle of 141°. The surface morphologies, surface chemical composition and contact angles of the coated fabrics surface were measured. Furthermore, the dynamic hydrophobic behavior of water droplet impact on the fabric was investigated. By analyzing the energy change, D(t)/D0 value and H(t)/D0 value during water droplet impact were measured. The water droplet showed an obvious effect of the dynamic rebound behavior on the coated fabric surface, further confirming that the coated PET fabric had hydrophobicity. After the rubbing and washing durability, mechanical and chemical stability treatment, the coated PET fabrics still maintained high hydrophobicity and displayed good water-repellent durability. Last but not least, PET hydrophobic fabrics exhibited excellent self-cleaning properties with dyes on the fabric surface.

中文翻译：

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通过有机硅基有机-无机杂化涂层对 PET 织物进行功能化

摘要 在本文中，通过改进的 Stober 方法合成二氧化硅纳米粒子 (SiO2) 并用正十八烷基三乙氧基硅烷 (OD) 进行功能化，以制备有机-无机杂化微纳米粒子。有机-无机杂化微纳米颗粒通过传统的“浸渍-干燥”工艺应用于无氟防水纺织材料的聚酯（PET）织物上。涂覆的 PET 织物表面显示出微/纳米结构，并表现出疏水性，水接触角为 141°。测量了涂层织物表面的表面形貌、表面化学成分和接触角。此外，研究了水滴对织物影响的动态疏水行为。通过分析能量变化，测量了水滴撞击期间的 D(t)/D0 值和 H(t)/D0 值。水滴对涂层织物表面的动态回弹行为表现出明显的影响，进一步证实了涂层PET织物具有疏水性。经摩擦耐洗、机械和化学稳定性处理后，涂层PET织物仍保持较高的疏水性和良好的拒水耐久性。最后但并非最不重要的一点是，PET 疏水织物在织物表面染色时表现出优异的自清洁性能。涂层PET织物仍保持高疏水性，并显示出良好的防水耐久性。最后但并非最不重要的一点是，PET 疏水性织物在织物表面染色时表现出优异的自清洁性能。涂层PET织物仍保持高疏水性，并显示出良好的防水耐久性。最后但并非最不重要的一点是，PET 疏水性织物在织物表面染色时表现出优异的自清洁性能。