Preparation method of cationic ultraviolet light curing resin with synergistic water solubility
A technology of curing resin and cation, which is applied in the field of preparation of cationic UV-curable resin, which can solve the problems of low hardness, influence of cured film performance, and difficulty in compounding and use, and achieve the effect of good wear resistance and good comprehensive physical and chemical properties
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Embodiment 1
[0039] A preparation method of a cationic ultraviolet light curing resin with synergistic water solubility, comprising the steps of:
[0040] The first step, in 500mL there-necked flask, add 30g solvent propylene glycol methyl ether acetate, 40g methyl methacrylate, 40g methyl acrylate, 30g glycidyl methacrylate, 60g hydroxyethyl methacrylate, 30g styrene, Stir evenly, add catalyst azobisisobutyronitrile accounting for 0.8% of the total mass of the monomer, heat to 68°C while stirring, and react for 3 hours to obtain a polyacrylate segment with hydroxyl and epoxy groups in the side chain ①, In the polyacrylate segment, the mass percent content of hydroxyethyl methacrylate (source of hydroxyl group) is 30%, and the mass percent content of glycidyl methacrylate (source of epoxy group) is 15%.
[0041] In the second step, add 1mol of toluene diisocyanate (TDI) to a 1000mL three-necked flask, heat to 63°C, and add 0.5% of dibutyltin dilaurate to 0.5mol of polyethylene glycol (mole...
Embodiment 2
[0051] A preparation method of a cationic ultraviolet light curing resin with synergistic water solubility, comprising the steps of:
[0052] In the first step, add 30g solvent ethylene glycol butyl ether acetate, 20g butyl methacrylate, 40g methyl methacrylate, 40g hydroxyethyl acrylate, 30g hydroxyethyl methacrylate, 50g formazan in a 500mL three-necked flask. Glycidyl acrylate, 10g styrene, 10g acrylonitrile, stir evenly, add 1.1% catalyst benzoyl peroxide tert-butyl peroxide, heat to 68°C while stirring, react for 3h, and obtain side The polyacrylate segment with hydroxyl and epoxy groups in the chain ①, in the polyacrylate segment, the mass percentage content of hydroxy acrylate (source of hydroxyl group) is 35%, glycidyl acrylate (source of epoxy group) The mass percentage composition is 25%.
[0053] Second step, in 1000mL there-necked flask, add the hexamethylene diisocyanate (HDI) of 1mol, be heated to 70 ℃, dibutyltin dilaurate joins the polyethylene glycol of 0.5mo...
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