A kind of superhydrophilic anti-fog coating and its preparation method and application
An anti-fog coating, super-hydrophilic technology, applied in the coating, metal material coating process, liquid chemical plating, etc., can solve the problems of titanium dioxide coating application limitations, etc., achieve good application prospects, long anti-fog duration , highly controllable effect
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[0028] Another aspect of the embodiments of the present invention also provides a method for preparing a superhydrophilic anti-fog coating, which includes: at least using any one of the physical vapor deposition method, the sol-gel method, and the plasma-enhanced chemical vapor deposition method photocatalytically active TiO 2 Elemental doping is performed to deposit a super-hydrophilic anti-fog coating on the substrate.
[0029] Further, the doped elements include any one or a combination of metal elements and non-metal elements, and are not limited thereto.
[0030] Furthermore, the elements to be doped include any one or a combination of two or more of N, C, S, F, Fe, Cr, Ni, Cu, and are not limited thereto.
[0031] Further, the element doping includes single element doping or multi-element co-doping.
[0032] In some more specific embodiments, the method includes: placing the substrate in a vacuum chamber of a film coating equipment, and then sputtering a Ti target in a...
Embodiment 1
[0051] The N-doped TiO of this embodiment 2 A superhydrophilic anti-fog coating was prepared on a glass substrate by physical vapor deposition, and the N-doped TiO 2 The total thickness of the superhydrophilic anti-fog coating is about 100 nm.
[0052] The N-doped TiO 2 The superhydrophilic anti-fog coating can be prepared according to the following steps:
[0053] (1) Cleaning, degreasing, and surface activation treatment of the glass substrate: firstly, the glass substrate is cleaned and degreased with solvents such as ethanol and acetone, and then placed in the vacuum chamber of the reactive magnetron sputtering equipment, and the Vacuumize the vacuum chamber of the above-mentioned coating equipment, then raise the temperature in the vacuum chamber to 100°C, and pass in argon gas, turn on the ion beam, the ion beam voltage is 1300V, increase the gas ionization rate, and apply - 400V bias voltage to guide argon ions to bombard and activate the metal surface;
[0054] (2)...
Embodiment 2
[0057] The N-C co-doped TiO of the present embodiment 2 A superhydrophilic anti-fog coating was prepared on a glass substrate by physical vapor deposition, and the N-C co-doped TiO 2 The total thickness of the superhydrophilic anti-fog coating is about 150nm.
[0058] The N-C doped TiO 2 The superhydrophilic anti-fog coating can be prepared according to the following steps:
[0059] (1) Cleaning, degreasing, and surface activation treatment of the glass substrate: firstly, the glass substrate is cleaned and degreased with solvents such as ethanol and acetone, and then placed in the vacuum chamber of the reactive magnetron sputtering equipment, and the Vacuumize the vacuum chamber of the above-mentioned coating equipment, then raise the temperature in the vacuum chamber to 100°C, and pass in argon gas, turn on the ion beam, the ion beam voltage is 1300V, increase the gas ionization rate, and apply - 400V bias voltage to guide argon ions to bombard and activate the metal surf...
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Abstract
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