Quick-drying high-gloss white polyurethane finish and preparation technology thereof
A polyurethane, white topcoat technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of slow construction drying speed, poor leveling performance, poor anti-yellowing resistance, etc., and achieve excellent flow Flat performance, excellent anti-yellowing performance, fast drying effect
Inactive Publication Date: 2015-01-28
YINGDE YAJIA PAINT
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Problems solved by technology
[0005] The invention discloses a manufacturing process of polyurethane quick-drying high-gloss white topcoat, which has solved the problems of slow construction and drying speed, poor yellowing resistance and poor leveling performance in existing products; the product of the invention It has the characteristics of fast drying speed, good yellowing resistance and good leveling
Method used
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Embodiment 1
[0026]
[0027] The production process is as follows:
[0028] (1) First, add 40 parts of low-hydroxyl acrylic resin, 20 parts of low-hydroxyl alkyd resin, 0.5 part of dispersant and 0.3 part of defoamer into the dispersion tank, adjust the speed to 450r / min, and disperse at a low speed for 5 minutes;
[0029] (2) After the above ingredients are mixed evenly, add 30 parts of titanium dioxide and continue to disperse until the fineness reaches ≤20um;
[0030] (3) Put 0.1 parts of drier, 0.5 parts of leveling agent and 8.6 parts of solvent into the dispersing tank, stir at low speed for 15 minutes and disperse.
[0031] The white finish paint of this embodiment needs to be used together with supporting curing agent and diluent during construction. The construction ratio is 1:0.6:0.5.
[0032] From the above description, it can be seen that the product of the present invention uses low-hydroxyl acrylic resin and low-hydroxyl alkyd resin as resin raw materials, so the product...
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The invention discloses a quick-drying high-gloss white polyurethane finish and a preparation technology thereof. The finish comprises 40wt% of low hydroxyl acrylic resin, 20wt% of low hydroxyl alkyd resin, 0.5wt% of a dispersant, 0.3wt% of an antifoaming agent, 30wt% of titanium dioxide, 0.1wt% of a drying agent, 0.5wt% of a leveling agent and 8.6wt% of a solvent. The preparation technology comprise the following steps: adding the low hydroxyl acrylic resin, the low hydroxyl alkyd resin, the dispersant and the antifoaming agent into a dispersing cylinder, adjusting the rotating speed to 300-500r / min, carrying out low speed dispersion for 5min to uniformly mix the above components, adding titanium dioxide, carrying out high speed dispersion until the fineness is less than or equal to 20[mu]m, adding the drying agent, the leveling agent and the solvent to the dispersing cylinder, and carrying out low speed stirring dispersion for 15min. The quick-drying high-gloss white polyurethane finish has the characteristics of quick drying, good yellowing resistance, good levelability and the like.
Description
technical field [0001] The invention relates to the field of paint chemical industry, in particular to a manufacturing process of polyurethane quick-drying high-gloss white finish. Background technique [0002] At present, in the existing technology, PU (polyurethane) high-fullness anti-sag bright white finish paint is an environmentally friendly coating with excellent comprehensive performance, which has good anti-sag, high whiteness, good fullness, and yellowing resistance. Excellent features, widely used in the topcoat coating of high-end suite furniture and high-end cabinet furniture. After the construction of similar products on the market, the common disadvantages are slow drying speed, poor fullness, general adhesion, and general yellowing resistance. [0003] The Chinese patent with the application number "201210433763.6" discloses an invention patent named "a PU high-fullness anti-sag bright white topcoat". Acrylic resin, PU high-grade bright white flour paste, di...
Claims
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Login to View More IPC IPC(8): C09D175/04C09D175/06C09D7/12C08G18/62C08G18/42
CPCC09D175/04C08G18/6216C08G18/68C08K3/22C08K2003/2241C09D7/20C09D7/61
Inventor 刘文革刘文志
Owner YINGDE YAJIA PAINT