A kind of highly elastic water-based UV resin and preparation method thereof
A high-elasticity, water-based technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve problems such as easy wear and tear, and achieve the effect of good gloss, high elasticity, and fast curing rate
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[0059] In one embodiment, the preparation method of the nanoparticles at least includes the following steps: mixing silicon dioxide, 4-aminobutyltriethoxysilane, and an aqueous ethanol solution, ultrasonicating for 30-50 minutes, and then heating at 60-70°C Stir for 5-10 hours, then add graphene oxide, continue stirring for 2-4 hours, wash with deionized water, and freeze-dry to prepare nanoparticles.
[0060] In a preferred embodiment, the preparation method of the nanoparticles at least includes the following steps: mixing silicon dioxide, 4-aminobutyltriethoxysilane, and an aqueous ethanol solution, sonicating for 40 minutes, and then stirring at 65°C 8h, followed by adding graphene oxide, continuing to stir for 3h, washing with deionized water, and freeze-drying to prepare nanoparticles.
[0061] In one embodiment, the weight ratio of silicon dioxide, 4-aminobutyltriethoxysilane, and ethanol aqueous solution is (2-4):1:(5-8).
[0062] In a preferred embodiment, the weight...
Embodiment 1
[0090] Embodiment 1 of the present invention provides a kind of highly elastic water-based UV resin, comprising the following components in parts by weight: 40 parts of isocyanate, 0.1 part of catalyst, 0.2 part of polymerization inhibitor, 30 parts of organosilicon compound, 30 parts of polyol, 8 parts of nanoparticles, 10 parts of hydroxy acrylate, and 8 parts of neutralizing agent.
[0091] The isocyanate is diphenylmethane diisocyanate.
[0092] The catalyst is stannous octoate.
[0093] The polymerization inhibitor is 2,6-di-tert-butyl p-ethylphenol.
[0094] The organosilicon compound is hydroxyl silicone oil.
[0095] Described polyhydric alcohol is polycarbonate dihydric alcohol, polyethylene glycol, ethylene glycol.
[0096] The weight ratio of polycarbonate diol, polyethylene glycol and ethylene glycol is 4:1.5:1.
[0097] The polycarbonate diol is polycarbonate diol 2000.
[0098] Described polyethylene glycol is polyethylene glycol 2000.
[0099] The raw mate...
Embodiment 2
[0109] Embodiment 2 of the present invention provides a kind of highly elastic water-based UV resin, comprising the following components in parts by weight: 35 parts of isocyanate, 0.05 part of catalyst, 0.1 part of polymerization inhibitor, 25 parts of organosilicon compound, 25 parts of polyol, 3 parts of nanoparticles, 5 parts of hydroxy acrylate, and 5 parts of neutralizing agent.
[0110] The isocyanate is diphenylmethane diisocyanate.
[0111] The catalyst is stannous octoate.
[0112] The polymerization inhibitor is 2,6-di-tert-butyl p-ethylphenol.
[0113] The organosilicon compound is hydroxyl silicone oil.
[0114] Described polyhydric alcohol is polycarbonate dihydric alcohol, polyethylene glycol, ethylene glycol.
[0115] The weight ratio of polycarbonate diol, polyethylene glycol and ethylene glycol is 3.8:1.2:1.
[0116] The polycarbonate diol is polycarbonate diol 2000.
[0117] Described polyethylene glycol is polyethylene glycol 2000.
[0118] The raw ma...
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