UV cured aqueous fluorine-containing resin and preparation method thereof
A fluorine-containing resin and water-based technology, which is applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of low water contact angle and complicated preparation, and achieve the effects of increasing contact angle, short preparation route and mild reaction conditions
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Embodiment 1
[0038] A UV curing water-based fluorine-containing resin, calculated in parts by weight, its raw materials include:
[0039]
[0040] Wherein, the polyether polyol is PTMG1000; the neutralizer is triethylamine. Calculated in parts by weight, the raw materials of the fluorine-containing chain extender include hexafluoroisopropanol, isophorone diisocyanate, trimethylolpropane, solvent And catalyst; Described solvent is acetone; Described catalyst is dibutyltin dilaurate.
[0041] The preparation method of described UV curing water-based fluorine-containing resin, the steps are as follows:
[0042] 1) Add hexafluoroisopropanol, isophorone diisocyanate, and the catalyst into the four-necked flask in turn according to the weight ratio, raise the temperature to 30°C, and add the solvent into the four-necked flask at a speed of 0.05ml / s according to the weight ratio , react for 1 h under stirring, then add trimethylolpropane in proportion to weight, raise the temperature to 70°C...
Embodiment 2
[0056] A UV curing water-based fluorine-containing resin, calculated in parts by weight, its raw materials include:
[0057]
[0058] Wherein, the polyether polyol is a mixture of PTMG1000 and N210 in a mass ratio of 1:1.
[0059] Described neutralizing agent is triethylamine.
[0060] Calculated in parts by weight, the raw materials of the fluorine-containing chain extender include hexafluoroisopropanol, isophorone diisocyanate, trimethylolpropane, solvent and And catalyst; Described solvent is the mixture that acetone, ethyl acetate form by volume ratio 1:1; Described catalyst is dibutyltin dilaurate.
[0061] The preparation method of the above-mentioned UV curing water-based fluorine-containing resin, the steps are as follows:
[0062] 1) Add hexafluoroisopropanol, isophorone diisocyanate, and the catalyst to the four-necked flask in sequence by weight, raise the temperature to 50°C, and add the solvent to the four-necked flask at a rate of 0.1ml / s by weight , reacte...
Embodiment 3
[0069] A UV curing water-based fluorine-containing resin, calculated in parts by weight, its raw materials include:
[0070]
[0071] Wherein, the polyether polyol is N210.
[0072] Described neutralizing agent is triethylamine.
[0073] Calculated in parts by weight, the raw materials of the fluorine-containing chain extender include hexafluoroisopropanol, isophorone diisocyanate, trimethylolpropane, solvent And catalyst; The solvent is ethyl acetate; The catalyst is dibutyltin dilaurate.
[0074] The preparation method of the above-mentioned UV curing water-based fluorine-containing resin, the steps are as follows:
[0075] 1) Add hexafluoroisopropanol, isophorone diisocyanate, and the catalyst into the four-necked flask in sequence according to the weight ratio, raise the temperature to 35°C, and add the solvent into the four-necked flask at a speed of 0.08ml / s according to the weight ratio , reacted for 2 hours under stirring, then added trimethylolpropane according ...
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