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Exterior wall dope and preparation method of exterior wall dope

A technology for exterior wall coatings and pigments, applied in the field of coatings for exterior walls and their preparation, can solve problems such as the growth of mold and algae, and achieve the effects of improving weather resistance, strong storage stability and good compatibility

Active Publication Date: 2012-10-17
NIPPON PAINT GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, since the film-forming substance is an organic polymer with a certain degree of hydrophilicity, mold and algae will grow under certain temperature and humidity conditions.

Method used

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  • Exterior wall dope and preparation method of exterior wall dope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh the following components according to the weight ratio: emulsion base material: 10 parts of acrylate emulsion, filler: 30 parts of mica powder, dispersant: 0.1 part of polyphosphate, water glass: 30 parts of aqueous solution of potassium silicate, pigment: 10 parts of rutile titanium dioxide, defoamer: 0.1 part of saturated fatty acid, thickener: 0.2 part of hydroxyethyl cellulose, wetting agent: 0.1 part of polyethylene glycol aliphatic ether, anti-mold preservative: isothiazolin 0.5 parts of ketone derivatives, viscosity stabilizer: 5 parts of isotridecyloxypropyl amine oxide, film-forming aid: 2 parts of lauryl alcohol, 10 parts of water; then follow the steps below:

[0033] (1) Add water and thickener under stirring at 200rpm-500rpm, and stir for 3 minutes;

[0034] (2) Adjust the speed to 600rpm-900rpm, add 10% defoamer and dispersant, and stir for 2 minutes;

[0035] (3) Adjust the speed to 1100rpm-1400rpm, add pigments and fillers, and stir for 30 minutes...

Embodiment 2

[0041] Weigh the following components according to the weight ratio: emulsion base material: 30 parts of styrene-acrylic emulsion, filler: 15 parts of calcium carbonate, dispersant: 2 parts of polyacrylic acid sodium salt, water glass: 10 parts of aqueous solution of sodium silicate, pigment : 20 parts of rutile titanium dioxide, defoaming agent: 2 parts of fatty acid ester, thickener: 1 part of bentonite, wetting agent: 0.5 parts of modified aromatic polyether, anti-mold preservative: benzimidazole derivative 0.2 parts, viscosity stabilizer: 1 part of isotridecyloxypropyl amine oxide, film-forming aid: 1 part of lauryl alcohol, 20 parts of water; then follow the steps below:

[0042] (1) Add water and thickener under stirring at 200rpm-500rpm, and stir for 3 minutes;

[0043] (2) Adjust the speed to 600rpm-900rpm, add 25% defoamer and dispersant, and stir for 2 minutes;

[0044] (3) Adjust the speed to 1100rpm-1400rpm, add pigments and fillers, and stir for 30 minutes;

[0...

Embodiment 3

[0050] Weigh the following components according to the weight ratio: emulsion base material: 20 parts of silicon acrylic emulsion, filler: 15 parts of barium sulfate, dispersant: 1.2 parts of polyphosphate, water glass: 20 parts of aqueous solution of potassium silicate, pigment: 25 parts of rutile titanium dioxide, defoamer: 1 part of saturated fatty acid, thickener: 0.5 part of xanthan gum, wetting agent: 0.2 part of polyethylene glycol aliphatic ether, anti-mold preservative: pipetriazine derivative 0.5 parts, viscosity stabilizer: 4 parts of isotridecyloxypropyl amine oxide, film-forming aid: 3 parts of 200# solvent oil, 30 parts of water; then follow the steps below:

[0051] (1) Add water and thickener under stirring at 200rpm-500rpm, and stir for 3 minutes;

[0052] (2) Adjust the speed to 600rpm-900rpm, add 40% defoamer and dispersant, and stir for 2 minutes;

[0053] (3) Adjust the speed to 1100rpm-1400rpm, add pigments and fillers, and stir for 30 minutes;

[0054]...

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Abstract

The invention discloses an exterior wall dope for building. The exterior wall dope comprises an emulsion binder, a pigment, paddings, a solvent, a film-forming assistant and an auxiliary material and further comprises a water glass and a viscosity stabilizer. The exterior wall dope has good weather resistance, good mold-algae resistance, excellent performance and good compatibility with base materials as well as is stable to store. Moreover, the invention further discloses a preparation method of the exterior wall dope. The preparation method is simple to operate and convenient to realize.

Description

technical field [0001] The invention relates to a coating for exterior walls and a preparation method thereof, in particular to an exterior wall coating with good weather resistance and mold and algae resistance and a preparation method thereof. Background technique [0002] The coatings used on the exterior walls of buildings in my country are mainly latex paints, and their film-forming substances are polymer emulsions. The emulsions used for exterior walls include styrene-acrylic emulsion, pure acrylic emulsion, silicon-acrylic emulsion, fluorocarbon emulsion, etc. Whether it is styrene-acrylic emulsion, pure acrylic emulsion, silicon-acrylic emulsion or fluorocarbon emulsion, after making latex paint on the wall, After five to ten years of outdoor aging, its performance has declined significantly, mainly manifested as powder shedding or even peeling off of the coating. On the other hand, since the film-forming material is an organic polymer with a certain degree of hydro...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D5/14C09D133/00
Inventor 杨文睿林惠赐
Owner NIPPON PAINT GUANGZHOU
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