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Aerosol-assisted chemical vapour deposition of transparent superhydrophobic film by using mixed functional alkoxysilanes.
Scientific Reports ( IF 3.8 ) Pub Date : 2019-05-17 , DOI: 10.1038/s41598-019-43386-1 Alessia Tombesi 1, 2 , Shuhui Li 2, 3 , Sanjayan Sathasivam 2 , Kristopher Page 2 , Frances L Heale 2 , Claudio Pettinari 1 , Claire J Carmalt 2 , Ivan P Parkin 2
Scientific Reports ( IF 3.8 ) Pub Date : 2019-05-17 , DOI: 10.1038/s41598-019-43386-1 Alessia Tombesi 1, 2 , Shuhui Li 2, 3 , Sanjayan Sathasivam 2 , Kristopher Page 2 , Frances L Heale 2 , Claudio Pettinari 1 , Claire J Carmalt 2 , Ivan P Parkin 2
Affiliation
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A method for the preparation of transparent superhydrophobic silica coatings on glass substrates via aerosol-assisted chemical vapour deposition (AACVD) is described. A multi-layer process to produce dual scale silica nanoparticles films, by using different functional alkoxysilanes was investigated. A first layer of 3-methacryloxypropyltrimethoxysilane (MPS) and a second layer of tetraethylorthosilicate (TEOS) were deposited at different temperatures to generate micro and nano particles of silica. Finally, a layer of perfluorooctyltriethoxysilane was deposited on top of the two layers to achieve superhydrophobicity. The transparent superhydrophobic film showed transparency of 90% in the visible light region with a static water contact angle of 165° and a sliding angle lower than 1°. Various durability tests were performed on the transparent superhydrophobic film, showing a constant water repellency after corrosion and organic solvents tests, strong resistance under UV light, and thermal stability up to 400 °C. Sandpaper mechanical robustness durability test showed superhydrophobicity for up to 5 rubbing cycles. In this study, a novel strategy to achieve highly transparent superhydrophobic glass surfaces using AACVD of alkoxysilanes, to produce surfaces with excellent durability is described. This shows great potential to obtain silica superhydrophobic films for large-scale applications.
中文翻译：
使用混合功能烷氧基硅烷气溶胶辅助化学气相沉积透明超疏水薄膜。
描述了一种通过气溶胶辅助化学气相沉积（AACVD）在玻璃基板上制备透明超疏水二氧化硅涂层的方法。研究了使用不同功能的烷氧基硅烷生产双尺度二氧化硅纳米颗粒薄膜的多层工艺。第一层 3-甲基丙烯酰氧基丙基三甲氧基硅烷 (MPS) 和第二层原硅酸四乙酯 (TEOS) 在不同温度下沉积，生成二氧化硅微米和纳米颗粒。最后，在两层之上沉积一层全氟辛基三乙氧基硅烷以实现超疏水性。该透明超疏水薄膜在可见光区显示出90%的透明度，静态水接触角为165°，滑动角小于1°。对透明超疏水薄膜进行了各种耐久性测试，在腐蚀和有机溶剂测试后显示出恒定的拒水性，在紫外线下具有很强的抵抗力，热稳定性高达400℃。砂纸机械坚固耐用测试显示，在长达 5 次的摩擦循环中仍具有超疏水性。在这项研究中，描述了一种利用烷氧基硅烷的 AACVD 实现高度透明的超疏水玻璃表面的新策略，从而生产出具有优异耐久性的表面。这表明获得二氧化硅超疏水薄膜具有大规模应用的巨大潜力。
更新日期：2019-05-17
中文翻译：
使用混合功能烷氧基硅烷气溶胶辅助化学气相沉积透明超疏水薄膜。
描述了一种通过气溶胶辅助化学气相沉积（AACVD）在玻璃基板上制备透明超疏水二氧化硅涂层的方法。研究了使用不同功能的烷氧基硅烷生产双尺度二氧化硅纳米颗粒薄膜的多层工艺。第一层 3-甲基丙烯酰氧基丙基三甲氧基硅烷 (MPS) 和第二层原硅酸四乙酯 (TEOS) 在不同温度下沉积，生成二氧化硅微米和纳米颗粒。最后，在两层之上沉积一层全氟辛基三乙氧基硅烷以实现超疏水性。该透明超疏水薄膜在可见光区显示出90%的透明度，静态水接触角为165°，滑动角小于1°。对透明超疏水薄膜进行了各种耐久性测试，在腐蚀和有机溶剂测试后显示出恒定的拒水性，在紫外线下具有很强的抵抗力，热稳定性高达400℃。砂纸机械坚固耐用测试显示，在长达 5 次的摩擦循环中仍具有超疏水性。在这项研究中，描述了一种利用烷氧基硅烷的 AACVD 实现高度透明的超疏水玻璃表面的新策略，从而生产出具有优异耐久性的表面。这表明获得二氧化硅超疏水薄膜具有大规模应用的巨大潜力。
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