Water-based UV light-cured polyurethane coating and preparation method thereof
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A polyurethane coating and light-curing technology, applied in polyurea/polyurethane coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of wear resistance and poor adhesion, achieve good chemical corrosion resistance, and improve adhesion , Good acid and alkali resistance
Inactive Publication Date: 2021-03-12
中山市鑫峰光固化材料有限公司
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Problems solved by technology
[0004] The present invention provides a water-based UV light-cured polyurethane coating in order to solve the technical problem of poor wear resistance and poor adhesion when the existing water-based UV coating is applied to the floor paint
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Embodiment 1
[0029] A kind of preparation method of above-mentioned waterborne UV photocurable polyurethane coating, comprises the following steps:
[0030] 1) Weigh each component according to the ratio in Table 1, mix aromatic urethane acrylate, phosphate-modified acrylate, filler, water-based paint additives and water, and stir at 400 rpm for 30 minutes to obtain the initial order mixture;
[0031] 2) Add nano anti-wear agent, titanate coupling agent and photoinitiator to the above primary mixture, stir at 250 rpm for 30 minutes, remove impurities through filtering equipment, and obtain the product.
Embodiment 2
[0033] A kind of preparation method of above-mentioned waterborne UV photocurable polyurethane coating, comprises the following steps:
[0034] 1) Weigh each component according to the ratio in Table 1, mix aromatic urethane acrylate, phosphate-modified acrylate, filler, water-based paint additives and water, and stir at 500 rpm for 20 minutes to obtain the initial order mixture;
[0035] 2) Add nano anti-wear agent, titanate coupling agent and photoinitiator to the above primary mixture, stir at 300 rpm for 20 minutes, remove impurities through filtering equipment, and obtain the product.
Embodiment 3
[0037] A kind of preparation method of above-mentioned waterborne UV photocurable polyurethane coating, comprises the following steps:
[0038]1) Weigh each component according to the ratio in Table 1, mix aromatic urethane acrylate, phosphate-modified acrylate, filler, water-based paint additives and water, and stir at 450 rpm for 30 minutes to obtain the initial order mixture;
[0039] 2) Add nano anti-wear agent, titanate coupling agent and photoinitiator to the above primary mixture, stir at 200 rpm for 30 minutes, remove impurities through filtering equipment, and obtain the product.
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Abstract
The invention discloses a water-based UV light-cured polyurethane coating and a preparation method thereof. The water-based UV light-cured polyurethane coating is prepared from the following components: 30-39 parts of aromatic polyurethane acrylate, 25-35 parts of phosphate modified acrylate, 3-5 parts of a photoinitiator, 4-8 parts of a nano anti-wear agent, 0.6-1.8 parts of a titanate coupling agent, 1-3 parts of filler, 0.6-1.8 parts of a water-based coating additive and 15-18 parts of water. Aromatic polyurethane acrylate is used as matrix resin and is subjected to polymerization reactionwith phosphate modified acrylate to form a hyperbranched oligomer with chemical bond connection acting force, then the nano anti-wear agent composed of a composite material is added, hydroxyl groups in molecules of a titanate coupling agent can form a bonding effect with a base material, and thus the adherence is greatly improved; and the water-based coating additive can improve the dispersity andcompatibility among the raw materials. Therefore, the water-based UV light-cured polyurethane coating has the characteristics of super wear resistance and high adhesive force, also has favorable acid / alkali resistance, and can be used for floors, furniture, wood fan blades, musical instruments and other wood products.
Description
technical field [0001] The invention belongs to the technical field of wood board coatings, and in particular relates to a water-based UV photocuring polyurethane coating and a preparation method thereof. Background technique [0002] Water-based UV curing coating technology has attracted increasing attention because it conforms to the concepts of environmental protection, energy saving, and clean production. Compared with traditional solvent-based UV photo-curing coatings, its advantage is that it does not contain solvents and can greatly eliminate volatile organic compounds (VOC). Pollution to the environment, and has the advantages of fast curing speed, energy saving, high production efficiency, and good coating performance. [0003] However, when the existing water-based UV coatings are applied to floor paints, there are problems of poor wear resistance and poor adhesion. Contents of the invention [0004] The present invention provides a water-based UV light-cured po...
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Application Information
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