Method for preparing photocatalysis glass self-cleaned coating
A self-cleaning, photocatalytic technology, applied in antifouling/underwater coatings, coatings, and biocide-containing paints, etc. Strong focus, improved antibacterial rate, good film-forming effect
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example 1
[0018] Measure 200mL cyclohexane, 50mL oleic acid, 30mL titanium tetraisopropoxide, add 300mL mass fraction of 10% tert-butylamine aqueous solution, stir at 300r / min for 20min, transfer to a four-neck flask, heat to 170°C, keep warm React for 3 hours, cool to room temperature and let stand for 1 hour, collect the upper oil phase and add it to an equal volume of ethanol, mix well and transfer to a centrifuge, centrifuge at 5000r / min for 3 minutes, collect the precipitate, and place the precipitate in a vacuum drying oven , dried at 70°C for 2 hours, then transferred to a pulverizer for crushing, and passed through a 200-mesh sieve to obtain hydrophobic nano-titanium dioxide; weigh 3g of the above-mentioned hydrophobic nano-titanium dioxide, add it to 120mL of chloroform, and disperse it with 300W ultrasonic wave for 30min , then add 3mL of tridecafluorooctyltriethoxysilane, stir at 300r / min for 10h in a constant temperature water bath at 40°C, let stand for 1h and then filter wi...
example 2
[0021]Measure 300mL of cyclohexane, 60mL of oleic acid, 50mL of titanium tetraisopropoxide, add 400mL of 10% tert-butylamine aqueous solution, stir at 400r / min for 30min, transfer to a four-necked flask, heat to 190°C, keep warm React for 5 hours, cool to room temperature and let stand for 2 hours, collect the upper oil phase and add it to an equal volume of ethanol, mix well and transfer to a centrifuge, centrifuge at 6000r / min for 5 minutes, collect the precipitate, and place the precipitate in a vacuum drying oven , dried at 80°C for 3 hours, then transferred to a pulverizer for crushing, and passed through a 200-mesh sieve to obtain hydrophobic nano-titanium dioxide; weigh 5g of the above-mentioned hydrophobic nano-titanium dioxide, add it to 240mL chloroform, and disperse it with 300W ultrasonic wave for 40min , then add 5mL of tridecafluorooctyltriethoxysilane, stir at 400r / min for 12h in a constant temperature water bath at 50°C, let stand for 2h and then filter with suc...
example 3
[0024] Measure 250mL of cyclohexane, 55mL of oleic acid, 40mL of titanium tetraisopropoxide, add 350mL of 10% tert-butylamine aqueous solution, stir at 350r / min for 25min, transfer to a four-necked flask, heat to 180°C, keep warm React for 4 hours, cool to room temperature and let stand for 1.5 hours, collect the upper oil phase and add it to an equal volume of ethanol, mix well and transfer to a centrifuge, centrifuge at 5500r / min for 4 minutes, collect the precipitate, and place the precipitate in a vacuum drying oven , dry it at 75°C for 2.5h, then transfer it to a pulverizer, pass it through a 200-mesh sieve, and obtain hydrophobic nano-titanium dioxide; weigh 4g of the above-mentioned hydrophobic nano-titanium dioxide, add it to 180mL of chloroform, and use 300W ultrasonic Disperse for 35 minutes, then add 4 mL of tridecafluorooctyltriethoxysilane, stir at 350 r / min for 11 hours in a constant temperature water bath at 45 °C, let stand for 1.5 hours, then filter with suctio...
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