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High weather resistant water-thinned wall paint and its preparing method

A highly weather-resistant, water-based technology that can be used in polyurea/polyurethane coatings, coatings, latex paints, etc.

Inactive Publication Date: 2003-01-22
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, traditional coatings, whether oil-based or water-based, are vulnerable to UV damage when used as wall coatings, especially as exterior wall coatings
The reason is that without the protection of special materials, the carbon-hydrogen bonds in the film-forming resin are easily broken and degraded under strong ultraviolet radiation, thus being damaged.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Formula (percentage by weight, %):

[0035] Deionized water 12.8;

[0036] Thickener (ER-30M) 0.84;

[0037] Appropriate amount of pH regulator (AMP-25) (pH=8.5 or so);

[0038] Dispersant (731A) 1.0;

[0039] Defoamer (BYK-034) 0.4;

[0040] Coupling agent (JKH-550) 0.5;

[0041] Propylene glycol 1.5;

[0042] Nanomaterial A (solid content 15%) 2.2;

[0043] Nanomaterial B (30% solid content) 2.2;

[0044] Titanium dioxide 10.0;

[0045] Kaolin 10.0;

[0046] Lauryl alcohol 2.5;

[0047] Silicone acrylic emulsion (HBS02) 50.0;

[0048] Silica sol (GS30) 6.0.

[0049] The configuration process steps are: dissolving part of the thickener in deionized water under low-speed stirring, and then adjusting the pH of the solution to about 8.5-9.0 with a pH regulator. Gradually increase the stirring speed, add dispersant, defoamer, coupling agent and propylene glycol accordingly, and stir thoroughly. Add nanomaterials and solid fillers, stir at high speed for 1 hour, ...

Embodiment 2

[0051] Dilute the paint prepared in Example 1 by one time with deionized water, add 5% silicone acrylic emulsion, and stir thoroughly to form an interior wall paint.

Embodiment 3

[0053] Add 4.4% each of A and B to the coating prepared in Example 1, fully stir evenly, and form a highly hydrophobic and non-sticky surface after the coating dries, reflecting strong self-cleaning properties. Exterior wall paint has high weather resistance.

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PUM

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Abstract

The present invention relates to high weather resistant water-thinned wall paint, and especially relates to environment friendly high weather resistant water emulsion paint and its preparation process. The paint consists of water emulsion, netted skeleton material, nano functional material, hydrophilic and hydrophobic raedical containing material, solid stuffing and assistant. The preparation principle includes basing on emulsion with excellent performance, constructing netted structure, introduction nano material with UV resisting, photocatalytic and high shielding performance, introducing assistant with both hydrophilic and hydrophobic characteristic to form compact and high-adhesion coating with integrated high weater resistance.

Description

technical field [0001] The invention relates to a high-weather-resistant water-based wall paint, in particular to an environment-friendly, high-weather-resistant water-based latex paint and a preparation method thereof that meet the requirements of clean production. Background technique [0002] With the rapid development of the real estate industry, wall coatings, as the main architectural coatings, are in increasing demand. At the same time, with the rise of modern high-rise buildings, the requirements for weather resistance of architectural coatings are getting higher and higher. The development of high weather resistance coatings has become an active field of coating research in the world today, especially in developed countries. The cleaning and maintenance of the exterior walls of high-rise buildings is more difficult than that of ordinary low-rise buildings. Therefore, the new requirement is that the exterior decoration of the build...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/02C09D125/14C09D133/04C09D175/04
Inventor 沈培康
Owner SUN YAT SEN UNIV
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