Preparation method of super-hydrophobic, super-oleophobic and high transparency triple-function coating film
A superhydrophobic, superoleophobic, high light transmittance technology, applied in the field of superhydrophobic superoleophobic high light transmittance triple function self-cleaning silica-based coating film and its preparation
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Embodiment 1
[0023] This example is the preparation of a super-hydrophobic, super-oleophobic and high-transmittance triple-functional coating film. The specific process is: use concentrated sulfuric acid (98wt%) and hydrogen peroxide (30wt%) aqueous solution to prepare a glass washing solution at a volume ratio of 3:1, soak the glass substrate in the glass washing solution for 5 minutes, and then wash it in deionized water and acetone respectively. Ultrasonic for 20 minutes, then treated with 5 mol / L sodium hydroxide aqueous solution at room temperature for 5 minutes, washed with deionized water, and dried by blowing at room temperature to obtain an activated glass substrate;
[0024] 2mL tetraethyl orthosilicate (Si(OCH 2 CH 3 ) 4 ) with 1mL dimethyldiethoxysilane ((CH 3 ) 2 Si(OCH 2 CH 3 ) 2 ) mixed, added to 25mL of absolute ethanol, stirred evenly to obtain solution A; 3mL of concentrated ammonia water (25wt%) was added to 25mL of absolute ethanol, stirred evenly to obtain solutio...
Embodiment 2
[0026] This example is the preparation of a super-hydrophobic, super-oleophobic and high-transmittance triple-functional coating film. The specific process is: use concentrated sulfuric acid (98wt%) and hydrogen peroxide (30wt%) aqueous solution to prepare a glass washing solution at a volume ratio of 3:1, soak the glass substrate in the glass washing solution for 5 minutes, and then wash it in deionized water and acetone respectively. Ultrasonic for 20 minutes, then treated with 5 mol / L sodium hydroxide aqueous solution at room temperature for 5 minutes, washed with deionized water, and dried by blowing at room temperature to obtain an activated glass substrate; 2 mL of ethyl orthosilicate (Si(OCH 2 CH 3 ) 4 ) with 1mL dimethyldiethoxysilane ((CH 3 ) 2 Si(OCH 2 CH 3 ) 2 ) mixed, added to 25mL of absolute ethanol, stirred evenly to obtain solution A; 4mL of concentrated ammonia water (25wt%) was added to 25mL of absolute ethanol, stirred evenly to obtain solution B; slow...
Embodiment 3
[0029] This example is the preparation of a super-hydrophobic, super-oleophobic and high-transmittance triple-functional coating film. The specific process is: use concentrated sulfuric acid (98wt%) and hydrogen peroxide (30wt%) aqueous solution to prepare a glass washing solution at a volume ratio of 3:1, soak the glass substrate in the glass washing solution for 5 minutes, and then wash it in deionized water and acetone respectively. Ultrasonic for 20 minutes, then treated with 5 mol / L sodium hydroxide aqueous solution at room temperature for 5 minutes, washed with deionized water, and dried by blowing at room temperature to obtain an activated glass substrate; 2 mL of ethyl orthosilicate (Si(OCH 2 CH 3 ) 4 ) with 1mL dimethyldiethoxysilane ((CH 3 ) 2 Si(OCH 2 CH 3 ) 2 ) mixed, added to 25mL of absolute ethanol, stirred evenly to obtain solution A; 5mL of concentrated ammonia water (25wt%) was added to 25mL of absolute ethanol, stirred evenly to obtain solution B; slow...
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