Ultraviolet-cured acrylic resin water-based coating material and preparation method thereof
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A technology of acrylic resin and water-based paint, applied in the direction of coating, etc., can solve the problems of environmental pollution, human body, animal and plant poisonous and harmful, etc., and achieve the effect of cost reduction, significant economic and social benefits, and fast surface drying speed
Active Publication Date: 2020-12-29
HUARONG COUNTY HENGXING BUILDING MATERIALS CO LTD
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[0003] However, most of the current UV-curable coatings are oil-based paints, and a large number of organic solvents such as toluene, ethyl acetate, and butano
Method used
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preparation example Construction
[0027] Wherein, the preparation method of the acrylic resin prepolymer comprises the following steps: vinyl trithiocarbonate, AIBN, acrylic monomer and 7-methacryloyloxy-4-methylcoumarin according to The molar ratio is 1:0.5:20~200:20~200, put it into the reaction bottle, add 1,4-dioxane, nitrogen protection, react at 80°C for 5h, and distill off the organic solvent under reduced pressure to obtain acrylic resin prepolymerization body.
[0028] Wherein, the acrylic monomer is selected from one of methyl methacrylate, methyl acrylate, butyl acrylate and hydroxyethyl methacrylate, glycidyl methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate , one of acrylonitrile.
[0029] Wherein, the emulsifier is preferably one or more of sodium styrene sulfonate, polyoxypropylene glyceryl ether, and nonylphenol polyoxyethylene ether.
[0030] Wherein, the dispersant is preferably Amp-95 or Sufynol 104BC.
[0031] Among them, the defoamer is preferably tributyl phosphate or polydim...
Embodiment 1
[0034] Embodiment 1: The polymerization monomer is methyl methacrylate and hydroxyethyl methacrylate, and the consumption of each component is 50 parts of acrylic resin prepolymer, 1 part of tributyl phosphate, 1 part of sodium styrene sulfonate, 10 parts of mica powder, 10 parts of alumina powder, 100 parts of 2 parts of Amp-95 water.
Embodiment 2
[0035] Example 2: The polymerization monomers are methyl acrylate and hydroxyethyl methacrylate, and the consumption of each component is 55 parts of acrylic resin prepolymer, 1 part of tributyl phosphate, 1 part of sodium styrene sulfonate, diatom 12 parts of soil powder, 9 parts of kaolin, 2 parts of Amp-95 water and 100 parts.
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Abstract
The invention relates to an ultraviolet-cured acrylic resin water-based coating material, which is prepared from the following components in parts by weight: 50-60 parts of acrylic resin prepolymer, 1-3 parts of defoaming agent, 1-3 parts of emulsifier, 20-30 parts of filler, 2-4 parts of dispersing agent and 100 parts of water. According to the invention, an ultraviolet curing agent is directly grafted into a hyperbranched polymer structure, so that cross-linking and curing can be performed in molecules to form a three-dimensional network structure so as to achieve high curing efficiency; a curing reaction only starts cross-linking curing under ultraviolet irradiation, so that the performance of a finally cured film is easy to control, and the construction difficulty of the coating material is remarkably reduced; water is used for replacing an organic solvent, so that the method has the obvious advantages of environmental protection, no toxicity, high efficiency and cost reduction, and has remarkable economic and social benefits; and the water-based coating material prepared by the invention has the advantages of extremely strong adhesive force, high surface drying speed and highpaint film glossiness, and can be widely applied to coating of wood product surfaces.
Description
technical field [0001] The invention relates to the field of ultraviolet light curing coatings, in particular to a preparation method of an ultraviolet light curing acrylic resin water-based coating. Background technique [0002] Coatings are highly decorative, durable and protective, and multifunctional, and are widely used in various industries such as construction, home improvement, and automobiles. UV-curable coatings have the characteristics of saving energy, reducing air pollution, and fast curing speed, and are especially suitable for coating substrates that cannot be heated. Compared with traditional linear coating resins, hyperbranched polymers have the characteristics of three-dimensional structure, a large number of end groups, and no intramolecular and intermolecular chain entanglements. Mixing has good compatibility. [0003] However, most of the current UV-curable coatings are oil-based paints, and a large number of organic solvents such as toluene, ethyl ace...
Claims
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