Dry powder latex paint and preparation method

A technology of dry powder latex and latex paint, applied in the field of latex paint, which can solve the problems of rough coating, incomplete coating of pigments and fillers with rubber powder, and powder removal, etc., to achieve fine coating, cheap and easy-to-buy raw materials, and low production cost Effect

Inactive Publication Date: 2013-06-12
广东顺德石头彩涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a dry powder latex paint capable of rapidly dissolving in water to form a uniform emulsion, aiming at defects such as incomplete coating of pigments and fillers by rubber powder in dry powder latex paints, powder removal, and rough coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1) Mix 15 parts of vinyl acetate and higher fatty acid vinyl ester copolymer rubber powder, 10 parts of anatase titanium dioxide, 15 parts of light calcium carbonate, 10 parts of calcined kaolin, 30 parts of talcum powder, 5 parts of microcrystalline powder, and 0.5 parts of benzene Ethylene maleic anhydride copolymer is mixed to make it homogeneous by mixer at 200 rev / min rotating speed;

[0035] 2) Put the semi-finished product mixed in step 1) into the vortex airflow micromachine for interface peeling and coating;

[0036] 3) Put the product obtained in step 2) into a mixer, add 0.5 parts of hydroxypropyl methylcellulose, 0.5 parts of polyether defoamer and 0.5 parts of polyurethane leveling agent, and age at 40 ° C for 20 minutes to obtain a color The filler is the core, and the rubber powder is the shell, which is a kind of dry powder latex paint that can be quickly dissolved in water and has strong coating integrity. According to GB / T9756-2009 "Synthetic Resin Em...

Embodiment 2

[0040] 1) Mix 20 parts of vinyl acetate and ethylene copolymer rubber powder, 10 parts of zinc oxide, 40 parts of talc powder, 20 parts of heavy calcium carbonate, 5 parts of microcrystalline powder, 5 parts of quartz powder, and 0.8 parts of sodium hexametaphosphate The machine is mixed at a speed of 150 rpm to make it uniform;

[0041] 2) Put the semi-finished product mixed in step 1) into the vortex airflow micromachine for interface peeling and coating;

[0042]3) Put the product obtained in step 2) into a mixer, add 0.5 parts of methyl cellulose, 0.4 parts of polyether defoamer and 0.2 parts of silicone leveling agent, and age at 50 ° C for 10 minutes to obtain a product based on pigments and fillers. The core and rubber powder are a kind of dry powder latex paint that can be quickly dissolved in water with strong shell coating integrity. According to GB / T9756-2009 "Synthetic Resin Emulsion Interior Wall Paint" interior wall primer requirements, the specific indicators o...

Embodiment 3

[0046] 1) Mix 20 parts of vinyl acetate copolymer rubber powder, 10 parts of anatase titanium dioxide, 5 parts of zinc oxide, 20 parts of talc powder, 20 parts of light calcium carbonate, 10 parts of mica powder, 10 parts of calcined kaolin, 5 parts of microcrystalline Powder, 1 part of sodium polyacrylate are mixed at 170 rpm by a mixer to make them uniform;

[0047] 2) Put the semi-finished product mixed in step 1) into the vortex airflow micromachine for interface peeling and coating;

[0048] 3) Put the product obtained in step 2) into the mixer, add 1 part of carboxyethyl cellulose, 0.5 part of silicone oil defoamer and 0.5 part of polyurethane leveling agent, and age at 45 ° C for 15 minutes to obtain pigments and fillers as the core 1. Rubber powder is a kind of dry powder latex paint that can dissolve in water quickly and has strong shell coating integrity.

[0049] According to the requirements of GB / T9755-2001 "Synthetic Resin Emulsion Exterior Wall Paint", the spec...

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PUM

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Abstract

The invention discloses a dry powder latex paint and a preparation method. The dry powder latex paint is characterized by consisting of the following raw materials in parts by weight: 55-70 parts of inorganic powder, 15-25 parts of redispersible latex powder, 10-20 parts of whitening agent, 5-10 parts of active agent, 0.5-1 part of thickener, 0.5-1 part of dispersant, 0.3-0.5 part of antifoaming agent and 0.2-0.5 part of leveling agent. According to the invention, the dry powder latex powder and the inorganic color filler are subjected to interface stripping and coating in a vortex airflow micro-machine to obtain a dry powder latex paint. The dry powder latex paint has good coating effect, delicate coating and excellent film formation, prevents powder removal, is convenient to use, and does not contain VOC (volatile organic compounds), thereby being really an environment-friendly and efficient latex paint.

Description

technical field [0001] The invention relates to the field of latex paint, in particular to a dry powder latex paint capable of rapidly dissolving in water to form an emulsion and a preparation method. Background technique [0002] my country's architectural coating products are developing in the direction of water-based, high solid content, and low VOC. As an important water-based paint variety, latex paint occupies an absolute share in the paint market due to its convenient use, easy color matching, and good water resistance. However, because it is a water-based dispersion system, the solid content is mostly 30-40%, and the rest are water and volatile substances, which cause a lot of waste in packaging, storage, transportation and use, especially in order to make liquid latex paint reach storage Stable and non-mildew, antifreeze, lubricant, preservative and other additives need to be added, such as ethylene glycol, ammonia water, formaldehyde, etc., which become the main s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/02C09D5/03C09D131/04C09D123/08C09D133/08C09D125/14C09D125/10C09D7/12
Inventor 陈庆曾军堂刘仕兵
Owner 广东顺德石头彩涂料有限公司
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