A kind of oil-repellent composition based on low-carbon chain organic fluorine and preparation method thereof
An organic fluorine, low carbon chain technology, applied in the field of material preparation, can solve problems such as poor stability
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Embodiment 1
[0030] A kind of vinyl silica sol, its preparation scheme is:
[0031] Add 40g of silica sol and 200g of solvent into the reaction kettle, mechanically stir for 10min, ultrasonically treat for 30min, then control the temperature to 50-70°C, add 0.5g of vinyltriethoxysilane, and 0.01g of anti-mold. agent, 0.1g of propylene glycol, and 4g of ammonia water, were added to the reaction kettle, high-speed grinding and beating for 10min, evaporated to remove ethanol, and cooled to 30°C after completion to obtain vinyl silica sol;
[0032] A kind of oil-repellent composition based on low-carbon chain organic fluorine and preparation method thereof, and its preparation method is as follows:
[0033]Mix 18.3g of perfluorobutyl(hexyl)ethyl acrylate, 80g of deionized water and 1.6g of dodecanethiol, stir for 10-30min, after mixing evenly, pass into high-purity nitrogen protection, and control the temperature to 70℃ , then slowly join the aqueous solution of potassium persulfate containin...
Embodiment 2
[0041] A kind of vinyl silica sol, its preparation scheme is:
[0042] Add 52.5g of silica sol and 250g of solvent into the reactor, mechanically stir for 15min and then ultrasonically treat for 38min, then control the temperature to 55°C, add 1.25g of vinyltriethoxysilane, and 0.03g of antifungal agent , 0.3g of propylene glycol, and 6.5g of ammonia water were added to the reaction kettle, high-speed grinding and beating for 13min, evaporating to remove ethanol, and cooling to 34 ° C after completion to obtain vinyl silica sol;
[0043] A kind of oil-repellent composition based on low-carbon chain organic fluorine and preparation method thereof, and its preparation method is as follows:
[0044] Mix 24.6g of perfluorobutyl (hexyl) ethyl acrylate, 100g of deionized water and 3.4g of dodecanethiol, stir for 16min, after mixing evenly, pass into high-purity nitrogen protection, control the temperature to 76 ℃, then The 25g aqueous solution containing 5.05g potassium persulfate ...
Embodiment 3
[0052] A kind of vinyl silica sol, its preparation scheme is:
[0053] Add 65g of silica sol and 300g of solvent into the reaction kettle, mechanically stir for 30min and then ultrasonically treat for 30-60min, then control the temperature to 70°C, add 2g of vinyltriethoxysilane, and 0.05g of antifungal agent , 0.5g of propylene glycol and 9g of ammonia water were added to the reaction kettle, high-speed grinding and beating for 10-20min, evaporated to remove ethanol, and cooled to 30-40°C after completion to obtain vinyl silica sol;
[0054] A kind of oil-repellent composition based on low-carbon chain organic fluorine and preparation method thereof, and its preparation method is as follows:
[0055] Mix 30.9g of perfluorobutane(hexyl)ethyl acrylate, 120g of deionized water and 5.2g of dodecanethiol, stir for 30min, pass into high-purity nitrogen protection after mixing evenly, control the temperature to 85°C, and then 30g of the aqueous solution containing 6.6g of potassium...
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