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Waterproof ventilating nano paint for external walls

A nano-coating and exterior wall technology, used in antifouling/underwater coatings, biocide-containing paints, etc., can solve the problems of poor comprehensive performance, low water repellency and breathability, and performance indicators that cannot meet the needs. Excellent performance and price, high stain resistance, strong aging resistance

Inactive Publication Date: 2005-08-24
QINGDAO YIQUN NEW TYPE COATING MATERIAL
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AI Technical Summary

Problems solved by technology

Our country is in the forefront of the world due to the theoretical research of nanotechnology, and its application research, including nano-coatings, has also achieved many gratifying results, such as Chinese patent CN1287144A, CN1287145A provides interior and exterior wall coatings and preparations containing nano-silicon-based oxides method, Chinese patent CN1277234A provides a method of adding oxygen-oxo-silicon-based oxides into existing coatings to improve performance, but generally speaking, the development of nano-coatings is still in the initial stage, and the performance indicators cannot meet the needs. For exterior wall coatings, the water repellency and air permeability are not high, and the overall performance is not good

Method used

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Embodiment Construction

[0030] An embodiment of the present invention is:

[0031] Mix 19.2 parts (parts by mass, the same below) of water, 3 parts of ethylene glycol, 1.4 parts of wetting and dispersing agent, 0.15 parts of defoaming agent, 0.2 parts of anti-mold agent, 20 parts of rutile titanium dioxide, 10 parts by weight Calcium, 8 parts of wollastonite, 4 parts of talc powder, and 6 parts of aluminum silicate are put into a high-speed dispersing machine with a rotation speed of 2000 rpm, and the dispersion time is 40 minutes, and then the product is put into the grinder. The grinding fineness is 50μm, the ground product is put into a mixer, and slowly add 12 parts of organosiloxane emulsion, 9.5 parts of acrylate emulsion, 2.45 parts of composite nano-material colloid, 1 part of film-forming aid, at a stirring speed of 300 rpm, 0.15 parts of defoamer, 0.5 part of thickener and 0.2 part of leveling agent are stirred and mixed uniformly, and finally passed through a 120-mesh sieve to obtain the finis...

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Abstract

A nanometer-grade paint for outer walls and its preparation method. The paint contains (by mass ): 10-25 pure water, 2-4 glycol, 8-10 heavy calcium, 3-6 aluminum silicate, 3-6talcum powder, 6-12 rubberlith, 9-30 propenoic acid,5-20 organosilicone emulsion, 0.5-3 nanometer composite material, dispersing agent, defoaming agent, auxiliary agent for forming membrane, thickening agent and flattening agent. The preparation method overcomes conglomeration of nanometer material, increase dispersion. The paint could absorb ultraviolet rays, has excellent abilities of repelling water, resisting contamination and aging.

Description

Technical field [0001] The invention relates to an architectural coating and a preparation method thereof, in particular to an exterior wall nano coating with water-repellent and breathable functions and a preparation method. Background technique [0002] Traditional architectural coatings have poor adhesion strength and anti-aging properties because they contain toxic substances or are easy to stain, mildew, and are no longer suitable for international environmental protection requirements. In recent years, extensive research and exploration have been conducted on new coatings with superior performance at home and abroad, and nano coatings are an important research direction. As China is in the forefront of the world in the theoretical research of nanotechnology, its application research, including nano coatings, has also obtained many gratifying results. For example, Chinese patents CN1287144A and CN1287145A provide interior and exterior wall coatings containing nano silicon-ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/16C09D133/04
Inventor 刘永屏
Owner QINGDAO YIQUN NEW TYPE COATING MATERIAL
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