Powder coating for building external wall and preparation method of powder coating

A technology for powder coatings and building exterior walls, which is applied in the field of building materials, can solve the problems of application restrictions on building exterior walls, poor coating adhesion, and difficulty in pan-alkali, etc., and achieves simple preparation and construction, good chemical resistance, and decorative properties. strong effect

Inactive Publication Date: 2017-11-10
ANHUI ZHENXIN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of construction equipment and curing conditions, architectural powder coatings are limited in the application of architectural exterior walls
In addition, the coating of inorganic silicate gel film-forming substances has poor adhesion, no elasticity, easy to crack, and not easy to efflorescence and other problems.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A powder coating for building exterior walls, comprising the following components by weight:

[0014] Portland cement 15 parts, high alumina cement 20 parts, terpolymer 15 parts, methyl hydroxyethyl cellulose ether 20 parts, defoamer 5 parts, dispersant 6 parts, waterproofing agent 15 parts, kaolin 12 parts , 6 parts of diatomite, 8 parts of activated carbon, 12 parts of heavy calcium, and 8 parts of alkali-resistant glass fiber; the terpolymer is acrylic acid-acrylate-sulfonate terpolymer.

[0015] Further, the waterproofing agent is organic silicon polymer powder.

[0016] The preparation method of the building exterior wall powder coating according to the present invention, weighs each raw material and puts it into a mixer, mixes it evenly, and then discharges and packs it.

Embodiment 2

[0018] A powder coating for building exterior walls, comprising the following components by weight:

[0019] 5 parts of Portland cement, 10 parts of high alumina cement, 5 parts of terpolymer, 8 parts of methyl hydroxyethyl cellulose ether, 2 parts of defoamer, 1 part of dispersant, 8 parts of waterproofing agent, 10 parts of kaolin , 2 parts of diatomite, 2 parts of activated carbon, 5 parts of heavy calcium, 2 parts of alkali-resistant glass fiber; the terpolymer is acrylic acid-acrylate-sulfonate terpolymer.

[0020] Further, the waterproofing agent is organic silicon polymer powder.

[0021] The preparation method of the building exterior wall powder coating according to the present invention, weighs each raw material and puts it into a mixer, mixes it evenly, and then discharges and packs it.

Embodiment 3

[0023] A powder coating for building exterior walls, comprising the following components by weight:

[0024] 20 parts of Portland cement, 30 parts of high alumina cement, 25 parts of terpolymer, 30 parts of methyl hydroxyethyl cellulose ether, 10 parts of defoamer, 8 parts of dispersant, 25 parts of waterproofing agent, 18 parts of kaolin , 10 parts of diatomite, 12 parts of activated carbon, 18 parts of heavy calcium, and 12 parts of alkali-resistant glass fiber; the terpolymer is acrylic acid-acrylate-sulfonate terpolymer.

[0025] Further, the waterproofing agent is organic silicon polymer powder.

[0026] The preparation method of the building exterior wall powder coating according to the present invention, weighs each raw material and puts it into a mixer, mixes it evenly, and then discharges and packs it.

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PUM

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Abstract

The invention provides a powder coating for a building external wall. The powder coating is prepared from components in parts by weight as follows: 5-20 parts of Portland cement, 10-30 parts of high-alumina cement, 5-25 parts of a terpolymer, 8-30 parts of methyl hydroxyethyl cellulose ether, 2-10 parts of a defoaming agent, 1-8 parts of a dispersant, 8-25 parts of a waterproof agent, 10-18 parts of kaolin, 2-10 parts of diatomaceous earth, 2-12 parts of activated carbon, 5-18 parts of calcium triple superphosphate and 2-12 parts of alkali-resistant glass fiber; the terpolymer is an acrylic acid-acrylic ester-sulfonate terpolymer. The coating not only has the characteristics of ageing resistance and chemical resistance of an inorganic coating, but also has breathable, waterproof and antifouling functions, and the influence of silicate efflorescence on appearance of the coating is avoided. The product is simple to prepare and construct, high in practicability and broad in application range, during use, water is added, and the powder coating is stirred and constructed through spraying, brushing and blade coating.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a building exterior wall powder coating and a preparation method thereof. Background technique [0002] In recent years, the construction industry has gradually developed into a pillar industry of the national economy. The proportion of architectural coatings in coatings has also increased year by year, accounting for 40 parts of the total coatings. Among them, the application of exterior wall decorative coatings has exceeded 35 parts of architectural coatings. share. Architectural coatings are directly related to people's health and living environment, reflecting people's living standards. With the development of modern life, culture and social economy, people have higher requirements for architectural coatings, which determines the development trend of architectural coatings in the future. [0003] Powder coating is a solvent-free powder coating with a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2111/00482C04B7/02C04B24/163C04B24/383C04B2103/50C04B2103/408C04B24/42C04B14/10C04B14/08C04B14/022C04B14/28C04B14/44
Inventor 姚丽玉
Owner ANHUI ZHENXIN PAINT
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