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Water-based paint function regulator and preparation method thereof
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A water-based paint and modifier technology, applied in the field of paint, can solve the problems of paint storage and other problems, and achieve the effects of low spray viscosity, low viscosity and good spray performance.
Inactive Publication Date: 2020-04-03
QINGYUAN HAOYU CHEM TECH
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Problems solved by technology
[0005] The water-based interference type pearlescent glitter paint disclosed in the above patent has a scientific proportion, the components are coordinated with each other, the drying speed is fast, and the construction performance is good. It meets the requirements of the 2C1B coating process for coatings, greatly saves costs, reduces energy consumption, and has energy saving and emission reduction. The advantages; the formed paint film has a gorgeous and soft luster, a pearl-like color, full of aesthetic feeling, no color difference, blooming, graining, loss of light or poor pearl effect, etc., and it has excellent water resistance and corrosion resistance, and good weather resistance. Decorative requirements for high-end cars; but there are still some defects in the existing technology, because the rheologically modified waxemulsion it uses is BYK AQUATIX 8421, and AQUATIX 8421 is easily affected by the comprehensive effect of pH value and dosage, which makes the paint prone to storage. sexual problems
Method used
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Embodiment 1
[0040] The water-based paint function regulator provided by the embodiments of the present invention is made of the following components in parts by mass:
[0061] Embodiment two: the present embodiment is the water-based paint function modifier implemented on the basis of embodiment one, and its difference is:
[0062] It is made of the following components in parts by mass ratio:
[0068] 5 parts of 0.5mol / L acetic acid solution.
[0069] In the preparation method of the water-based paint function modifier in this embodiment, 20 parts by mass of deionized water are added to the dispersion tank in the step (1), and 700 parts by mass of deionized water are added to the dispersion tank in the step (3).
[0070] The test result of the water-based paint function regulator in the present embodiment is as follows:
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Abstract
The invention discloses a water-based paint function regulator which is prepared from the following components in parts by mass: 40-60 parts of ethylene glycol butyl ether, 600-830 parts of deionizedwater, 15-30 parts of water dispersiblecellulose ester, 5-10 parts of a wetting dispersant, 80-100 parts of ethylene-vinyl acetatecopolymerwaxemulsion and 1-10 parts of 0.5mol / L acetic acid solution. The invention also discloses a preparation method of the water-based paint function regulator. The water-based paint function regulator provided by the invention can be used for spraying water-based polyurethane metallic flashing paint with the pH value of 7.5-9.0. When the water-based paint function regulator is mixed with water-based polyurethane metallic flashing paint with the pH value of7.5-9.0 according to the weight ratio of 1: 1 for spraying construction, the viscosity of the paint can be improved and the metallic flashing effect can be improved, and meanwhile, the drying speed ofa paint film can be remarkably increased.
Description
technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based coating function modifier and a preparation method thereof. Background technique [0002] Due to the need to take into account the stability of the water-based polyurethane dispersion used in the water-based polyurethane metallic glittercoating and the metal pigments used, such as aluminum powder, a neutralizer needs to be added to make the PH value slightly alkaline, which generally needs to be controlled at 7.5 ~9.0. In addition, a large amount of deionized water is used in waterborne polyurethane metallic flash coatings. When spraying, unlike solvent-based coatings, deionized water has a slow volatilization rate, which easily causes metallic pigments to flow and gather together in the coating film. , Forming the disadvantage of "clouds and flowers" coating film. [0003] BYK's AQUATIX 8421 is an ethylene-vinyl acetatecopolymerwaxemulsion. Under alkaline co...
Claims
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Application Information
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