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Implementation method for persistent super-hydrophilicity of sapphire surface
The invention provides a method for realizing persistent super-hydrophilicity of a sapphire surface, which comprises the following steps of: S1, ablating the sapphire surface by femtosecond laser to form a periodic micron-sized notch groove structure on the sapphire surface and generate hydrophilic gamma-phase aluminum oxide at the same time; s2, spin-coating a titanium dioxide precursor solution on the sapphire surface of the formed micron-sized notch groove structure and the gamma-phase aluminum oxide; and S3, after the titanium dioxide precursor solution is dried, putting the sapphire into a muffle furnace, and carrying out high-temperature annealing, so that the lasting super-hydrophilicity of the surface of the sapphire is realized. The femtosecond laser is combined with the anatase type titanium dioxide crystal coating, the contact angle between the sapphire surface and water can be 0 degree, and the contact angle can be kept for more than 180 days in the super-hydrophilic state.
本发明提供一种蓝宝石表面持久超亲水的实现方法，包括如下步骤：S1、采用飞秒激光对蓝宝石表面进行烧蚀，在蓝宝石表面形成周期性的微米级刻槽结构并同时生成具有亲水性的γ相氧化铝；S2、在形成的微米级刻槽结构与γ相氧化铝的蓝宝石表面旋涂二氧化钛前驱体溶液；S3、待二氧化钛前驱体溶液干燥后，将蓝宝石放入马弗炉中进行高温退火，实现蓝宝石表面持久的超亲水性。本发明利用飞秒激光与锐钛矿型二氧化钛晶体涂层相结合，能够实现蓝宝石表面与水的接触角为0°，并且在此超亲水状态下能够保持180天以上。
Implementation method for persistent super-hydrophilicity of sapphire surface
The invention provides a method for realizing persistent super-hydrophilicity of a sapphire surface, which comprises the following steps of: S1, ablating the sapphire surface by femtosecond laser to form a periodic micron-sized notch groove structure on the sapphire surface and generate hydrophilic gamma-phase aluminum oxide at the same time; s2, spin-coating a titanium dioxide precursor solution on the sapphire surface of the formed micron-sized notch groove structure and the gamma-phase aluminum oxide; and S3, after the titanium dioxide precursor solution is dried, putting the sapphire into a muffle furnace, and carrying out high-temperature annealing, so that the lasting super-hydrophilicity of the surface of the sapphire is realized. The femtosecond laser is combined with the anatase type titanium dioxide crystal coating, the contact angle between the sapphire surface and water can be 0 degree, and the contact angle can be kept for more than 180 days in the super-hydrophilic state.
本发明提供一种蓝宝石表面持久超亲水的实现方法，包括如下步骤：S1、采用飞秒激光对蓝宝石表面进行烧蚀，在蓝宝石表面形成周期性的微米级刻槽结构并同时生成具有亲水性的γ相氧化铝；S2、在形成的微米级刻槽结构与γ相氧化铝的蓝宝石表面旋涂二氧化钛前驱体溶液；S3、待二氧化钛前驱体溶液干燥后，将蓝宝石放入马弗炉中进行高温退火，实现蓝宝石表面持久的超亲水性。本发明利用飞秒激光与锐钛矿型二氧化钛晶体涂层相结合，能够实现蓝宝石表面与水的接触角为0°，并且在此超亲水状态下能够保持180天以上。
Implementation method for persistent super-hydrophilicity of sapphire surface
蓝宝石表面持久超亲水的实现方法
YANG JIANJUN (author) / YAN DANDAN (author) / ZOU TINGTING (author)
2022-03-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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