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Water-based primer-topcoat in one type paint

A bottom surface, water-based technology, applied in the direction of latex paint, coating, etc., can solve the problems of weather resistance, stain resistance, poor color retention, high labor intensity of workers, and the coating film is easy to bulge and form bubbles, etc., to achieve excellent adhesion , optimize the construction process and reduce the effect of labor level

Inactive Publication Date: 2012-02-15
ZHEJIANG TRANSFER PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the exterior wall latex paint currently on the market has poor weather resistance, stain resistance, and poor color retention, which is labor-intensive for workers and high labor costs; there is also a problem that the coating film is easy to bulge due to poor matching between the primer and the top coat. Blisters or cracks into skins, fades in a short period of time, needs to be reworked after a few years

Method used

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  • Water-based primer-topcoat in one type paint
  • Water-based primer-topcoat in one type paint
  • Water-based primer-topcoat in one type paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The coating formulation of the present invention is: 300.0g deionized water, 25.0g propylene glycol, 6.0g dispersant AG165, 2.0g multifunctional auxiliary agent AMP-95, 3.0g defoamer A10, 2.0g Casson preservative LXE, 2.0g Anti-mildew and anti-algae agent R-2000, 185.0g rutile titanium dioxide R-902, 50.0g high-gloss barium, 400g epoxy modified silicon acrylic emulsion, 35.0g film-forming aid alcohol ester-12, 4.0g rheology additive RM-2020, 6.0g thickener TT-935.

[0047]Add co-solvent, dispersant, multi-functional additive, 1 / 2 of the total amount of defoamer, rutile titanium dioxide and high-gloss barium in water in sequence, disperse at high speed until the fineness is acceptable, and then add epoxy modified silicone acrylic emulsion, 1 / 2 of the total amount of defoaming agent, film-forming aid, preservative, anti-mildew and anti-algae agent, rheological additive and thickener are adjusted to a suitable viscosity, and finally the finished water-based primer and surf...

Embodiment 2

[0049] The coating formula of the present invention is: 305.0g deionized water, 25.0g ethylene glycol, 8.0g dispersant 1124, 2.5g multifunctional additive AMP-95, 3g defoamer NXZ, 1.5gBIT preservative PROXEL AQ, 3.0g Anti-mildew and anti-algae agent R-2000, 170.0g rutile titanium dioxide, 80.0g calcium carbonate, 360g epoxy modified silicone acrylic emulsion, 30.0g film-forming aid benzyl alcohol, 5.0g rheology additive RM-2020, 7.0 g Thickener TT-935. The preparation process is the same as in Example 1.

Embodiment 3

[0051] The paint formula of the present invention is: 292.0g deionized water, 25.0g propylene glycol, 6.0g dispersant CA2500, 3.0g multifunctional additive AMP-95, 4.0g defoamer NXZ, 3.0g BIT preservative PROXELAQ, 4.0g anti-mildew Anti-algae agent R-2000, 190.0g rutile titanium dioxide, 40.0g calcium carbonate, 20.0g kaolin, 420.0g epoxy modified silicon acrylic emulsion, 40.0g film-forming aid ethylene glycol butyl ether, 6.0g rheological aid Agent RM-2020, 6.0g thickener TT-935. The preparation process is the same as in Example 1.

[0052] The performance of embodiment gained bottom surface all-in-one paint is as following table:

[0053]

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Abstract

The invention relates to water-based primer-topcoat in one type paint for an exterior wall of a building. Current latex paint for the exterior wall has the problems of poor weather resistance, poor stain resistance, poor color retention, greater labor intensity of workers and high labor cost, as well as the phenomena that a coating film is easy to bulge for forming bubbles or crust to form a skin due to the poor matching property between a primer and a topcoat and the color fading can emerge within a shorter period of time, and needs to be reworked after just a few of years. The invention provides the water-based primer-topcoat in one type paint which comprises epoxy-modified silicone acrylic emulsion and a plurality of auxiliaries, wherein the epoxy-modified silicone acrylic emulsion comprises emulsion total monomers, epoxy resin and auxiliary components, the emulsion total monomers comprise methacrylate type monomers, acrylate type monomer, hydroxyl monomers containing double bonds and organic silicon monomers, the formula of the latex paint is simultaneously optimized, the obtained water-based primer-topcoat in one type paint only needs to perform forming twice during the surface contraction of a base layer of the exterior wall, after a coating is formed, the performances of the primer and the topcoat are simultaneously integrated.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a water-based bottom-surface-in-one paint for building exterior walls. Background technique [0002] Acrylic resin plays a very important role in the field of coatings. Acrylic polymer emulsions are widely used in building exterior wall emulsion paints because of their excellent adhesion, weather resistance, film-forming properties, gloss and color retention, and mechanical properties. However, acrylic resin has disadvantages such as poor adhesion and water resistance, brittleness at low temperature, and stickiness at high temperature. For this reason, in order to obtain better exterior wall latex paint, it is necessary to modify the acrylic resin. The traditional modification method is silicone modified acrylic resin, but the cost of silicone is high and the curing speed is slow. [0003] In the current exterior wall decoration, latex paint occupies half of the country. However, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12C09D5/02C09D133/12C09D133/10
Inventor 石军吴庆喜李彦海吴勇陈凯胡娟陈萍
Owner ZHEJIANG TRANSFER PAINT CO LTD
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