Photo-cured acrylate-layered double hydroxide nano composite material and preparation method thereof

[0031] Under nitrogen atmosphere and ice-water bath conditions, add 0.20mol diphenylmethylene diisocyanate, 300mL toluene and 0.05% dibutyl tin laurate by weight of diphenylmethylene diisocyanate to a 500mL three-necked flask , slowly drop 0.20 mol of 2-hydroxyethyl methacrylate into a three-necked flask at a rate of 10 drops / minute, continue to react for 4 hours under ice-water bath conditions after dropping, then raise the temperature to 60°C, add 0.5% p-hydroxyanisole by weight of the reactant was reacted for 4 hours to obtain a toluene solution of acrylate modifier 1 with a concentration of 0.27 g / mL.

[0032] 30g sodium lauryl sulfate was added to 400mL concentration of 10% by weight of MgAl 2 ·6H 2 O (0.225mol) and 500mL Al(NO 3 ) 3 9H 2 In the mixed aqueous solution of O (0.075mol), after completely dissolving, at 80 DEG C with 500 revolutions per minute while stirring, dropwise add an alkaline solution with a concentration of 50% by weight until the pH value is 7-

[0039] Under nitrogen atmosphere and ice-water bath condition, add 0.20mol isophorone diisocyanate, 300mL tetrahydrofuran and dibutyl tin laurate ester of 0.2% by isophorone diisocyanate weight in the 500mL three-neck flask, add 0.20mol Slowly add 2-hydroxyethyl acrylate into the three-necked flask, continue to react for 2 hours under the condition of ice-water bath after dropping, then raise the temperature to 50°C, add 0.5% hydroquinone by weight of reactant, react 8 hours, a tetrahydrofuran solution of acrylate modifier 2 with a concentration of 0.25 g / mL was obtained.

[0040] 20g sodium dodecylsulfate, 10g sodium dodecylbenzenesulfonate are added to 8.3% ZnAl by 600mL weight concentration 2 (0.4mol) and 300mL of Al(NO 3 ) 3 9H 2 In the mixed aqueous solution of O (0.1mol), after completely dissolving, at 30 ℃ with 3000 rev / min rotating speed, add dropwise the alkaline solution that is 5% by weight until the pH value is 8-9, and the titration ends Afterwards, keep the

[0045] Under nitrogen atmosphere and ice-water bath conditions, add 0.20mol toluene diisocyanate, 200mL dioxane, 100mL toluene and 0.1% dibutyltin oxide by weight of toluene diisocyanate to a 500mL three-necked flask, and 0.20mol acrylate -2-Hydroxypropyl ester was slowly added dropwise to the three-necked flask. After the drop, the reaction was continued for 3 hours in an ice-water bath, and then the temperature was raised to 55°C. 0.3% phenol by weight of the reactant was added and reacted for 6 hours to obtain the concentration A 0.22 g / mL solution of Acrylate Modifier 3 in toluene / dioxane.

[0046] 30g sodium lauryl sulfate was added to 4.2% ZnAl by 600mL weight concentration 2 (0.2mol) and 300mL of 11.1% Al(NO 3 ) 3 9H 2In the mixed aqueous solution composed of O (0.1mol), after completely dissolving, at 30°C, while stirring at a speed of 3000 rpm, add dropwise an alkaline solution with a concentration of 10% by weight until the pH value is 11-12, and titrate After t