A kind of polyurethane modified epoxy acrylate resin and preparation method thereof
An epoxy acrylate and polyurethane modification technology, applied in the field of resin, can solve the problems of increased molecular weight of resin, complex synthesis process, increased irritation, etc., and achieve the effect of simple method, avoiding irritation, and cheap raw materials
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Embodiment 1
[0049] 1) Add 62 parts of the bisphenol A epoxy acrylate (mixture, the purchase pathway in the reactant), and the number of catalyst ethylhexanoate, 0.2 copies of catalyst ethylhexanoate, and stirring. After the temperature of the temperature is 110-120 ° C in the system, 37.8 parts of hexide (N (hydroxyl group) = 1 after the temperature is stable. 2), after the half an hour is added, the reaction of the inner ester molecule in the system is present, and the reaction is ended to obtain a modified epoxy acrylate.
[0050]
[0051] 2) 56.5 parts of the isofluorone diisocyanate and 0.3 parts of catalyst in Dikutaric acid dibutyltin were added to the reaction kettle, and the temperature of the system was increased to the temperature of 50-60 ° C for the temperature of about 30 min. After the temperature is stable, 43.2 parts of hydroxyethyl acrylate were added dropwise, and the temperature of the reaction system was 0.0-60 ° C, and the reaction was completed at the end of the reacti...
Embodiment 2
[0083] 1) Add 59.2 parts of the phenolic epoxy acrylate (mixture, purchase pathway to: Jiangsu Guangxin Photographic Material Co., Ltd.), 0.2 parts of catalyst ethylhexanoate, stirred even after stirring The temperature is 110-120 ° C, and 40.6 parts of caprolactone (N (hydroxyl group) = 1: 3), half an hour drops in half an hour after temperature is stable. After the completion of the completion, the reaction of the inner ester molecules in the system is present, and the reaction is completed to obtain a modified epoxy acrylate.
[0084]
[0085]
[0086] 2) Add 57.23 parts of toluene diisocyanate and 0.3 parts of catalyst in the reaction kettle and 0.3 parts of catalyst, after removing the oxygen in the system through about 30 min, the temperature of the temperature is 50-60 ° C, and the temperature is temperature After stabilization, 42.47 parts of hydroxypropyl acrylate were added dropwise, and the temperature of the reaction system was 0.0-60 ° C, and the reaction was comp...
Embodiment 3
[0104] 1) 58.6 parts of the bisphenol acrylate, 0.2 parts of catalyst ethylhexanoate, stirred well, and the temperature of the temperature is 110-120 ° C, and the temperature is stable after temperature. 41.2 parts of caprolactone (N (-OH): N (caprolactone) = 1: 1), the dripping is completed in half an hour, and the reaction is reacted when the innerness molecule is present. Oxygen acrylate.
[0105]
[0106] 2) 56.38 parts of 1,6-hexetin diisocyanate and 0.3 parts of catalyst were added to the reactor, and the temperature of the system was removed to the system after removing the oxygen in the system through about 30 min. After -60 ° C, after the temperature is stable, add 43.32 parts of hydroxypropyl methacrylate, and the temperature of the reaction system is 0.0-60 ° C, and the reaction is at the end of the reaction for about 3 h, and the reaction is half-closed. Isocyanate.
[0107]
[0108] 3) 37.2 parts of step 1) modified epoxy acrylate, 62.5 parts of step 2) of semi-bl...
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