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Building exterior wall coating with good weather resistance and exterior wall coating construction process

A technology for building exterior walls and weather resistance, applied in coatings, buildings, building structures, etc., can solve problems such as peeling, coating cracking, coating loss of decorative protection functions, etc., to improve adhesion, improve weather resistance, Effect of improving crack resistance and peeling resistance

Active Publication Date: 2020-02-18
深圳陆城装饰设计工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the coating is exposed to the atmosphere, it has to withstand the effects of wind, sun, salt spray corrosion, rain, cold and heat changes, etc. Under the long-term repeated action of these external natural environments, the coating is prone to cracking or even peeling off. Cause the coating to lose its original decorative protection function

Method used

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  • Building exterior wall coating with good weather resistance and exterior wall coating construction process
  • Building exterior wall coating with good weather resistance and exterior wall coating construction process
  • Building exterior wall coating with good weather resistance and exterior wall coating construction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1, is a kind of good weather resistance architectural exterior wall paint disclosed by the present invention, comprises the coating for the first topcoat layer and the coating for the second topcoat layer, and the coating for the first topcoat layer comprises the following groups by weight: Minute:

[0044] components parts by weight components parts by weight Polyacrylate Emulsion 55 magnesium hydroxide 2.1 calcium bicarbonate 12 Sodium lignosulfonate 0.65 Polyacrylamide Resin Particles 6.5 AMP-95 0.33 polyvinyl alcohol 3 ASE 0.67 Propylene Glycol 1.5 Quartz sand 7.5

[0045] The particle size of polyacrylamide resin particles is 0.1mm; the particle size of quartz sand is 1.5mm;

[0046] The coating for the second topcoat layer comprises the following components by weight:

[0047] components parts by weight components parts by weight PTFE emulsion 55 UV-O 0.45 Ti...

Embodiment 2

[0057] Embodiment 2, is a kind of good weather resistance architectural exterior wall paint disclosed by the present invention, comprises the coating for the first topcoat layer and the coating for the second topcoat layer, and the coating for the first topcoat layer comprises the following groups by weight: Minute:

[0058] components parts by weight components parts by weight Polyacrylate Emulsion 65 magnesium hydroxide 3 calcium bicarbonate 15 Sodium lignosulfonate 0.8 Polyacrylamide Resin Particles 8 AMP-95 0.375 polyvinyl alcohol 4 ASE 1.125 Propylene Glycol 2 Quartz sand 10

[0059] The particle size of polyacrylamide resin particles is 0.1mm; the particle size of quartz sand is 1.5mm;

[0060] The coating for the second topcoat layer comprises the following components by weight:

[0061]

[0062]

[0063] An exterior wall coating construction process, the specific process steps are the same as in Ex...

Embodiment 3

[0064] Embodiment 3, is a kind of good weather resistance architectural exterior wall paint disclosed by the present invention, comprises the coating for the first topcoat layer and the coating for the second topcoat layer, and the coating for the first topcoat layer comprises the following groups by weight: Minute:

[0065] components parts by weight components parts by weight Polyacrylate Emulsion 45 magnesium hydroxide 1 calcium bicarbonate 10 Sodium lignosulfonate 0.4 Polyacrylamide Resin Particles 5 AMP-95 0.25 polyvinyl alcohol 2 ASE 0.25 Propylene Glycol 1 Quartz sand 5

[0066] The particle size of polyacrylamide resin particles is 0.1mm; the particle size of quartz sand is 1.5mm;

[0067] The coating for the second topcoat layer comprises the following components by weight:

[0068] components parts by weight components parts by weight PTFE emulsion 40 UV-O 0.3 Titanium dio...

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Abstract

The invention relates to a building exterior wall coating with good weather resistance and an exterior wall coating construction process. The building exterior wall coating comprises a coating for a first finish paint layer and a coating for a second finish paint layer, the coating for the first finish paint layer comprises the following components in parts by weight: 45-65 parts of a polyacrylateemulsion, 10-15 parts of calcium bicarbonate, 5-8 parts of polyacrylamide resin particles, 2-4 parts of polyvinyl alcohol, 1-2 parts of propylene glycol, 1-3 parts of magnesium hydroxide, 0.4-0.8 part of sodium lignin sulfonate, 0.5-1.5 parts of a thickening agent and 5-10 parts of quartz sand. The coating for the second finish paint layer comprises the following components in parts by weight: 40- 70 parts of Polytetrafluoroethylene emulsion, 6-10 parts of titanium dioxide, 5 to 8 parts of calcium stearate, 3 to 6 parts of acrylamide, 0.4 to 0.8 part of sodium lignin sulfonate, 1.5 to 2.5 parts of propylene glycol, 0.3 to 0.6 part of UV-O, 0.5 to 1.5 parts of acrylic acid, 2 to 4 parts of zinc borate, 0.4 to 0.8 part of vinyltriethoxysilane and 0.7 to 1.2 parts of a thickening agent. Theweather resistance of the coating within the service life is improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a building exterior wall coating with good weather resistance and a construction process of the exterior wall coating. Background technique [0002] Coatings are materials that can be coated on the surface of a base material and form a firmly attached continuous film, which can give buildings protection and aesthetics. Paint and paint are the same concept. Paint is a customary name that people have used for a long time. After it was introduced into my country, it has been used in the construction industry. The function of coatings can be summarized into three aspects: protection, decoration and special functions. [0003] Architectural exterior wall paint is applied to form a coating on the surface of the exterior wall. The coating includes the outermost topcoat layer. The topcoat layer usually needs to be applied in two layers, including the first topcoat layer on t...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D7/61C09D7/63C09D7/65C09D4/02C09D4/06E04F21/06E04F13/02
CPCC08K2003/2224C09D4/06C09D133/08C09D7/61C09D7/63C09D7/65E04F13/02E04F21/06C08L33/26C08L29/04C08L97/005C08K13/02C08K5/053C08K3/22C08K3/36
Inventor 张越军张桂浩林大坚张侥玲林素君
Owner 深圳陆城装饰设计工程有限公司
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