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Deep color environmentally-friendly thermal-insulation exterior wall coating and preparation method thereof

A technology for exterior wall coatings and dark colors, which is applied in the direction of reflection/signal coatings, coatings, etc., and can solve problems such as high prices and low market share

Inactive Publication Date: 2011-08-17
SHAANXI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of pigment is expensive, and the country mainly relies on imports. There are very few Chinese coating companies that have the production technology of this kind of dark environmental protection and heat-insulating exterior wall coating, and the market share is very low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) Preparation of infrared reflective pigments

[0023] First mix magnesium oxide with iron oxide and chromium oxide at 8%, 55% and 37% by mass, then grind the mixed powder, and calcinate the ground and mixed powder at 1000°C for 6 hours and then cool to obtain a dark brown block body material, and finally the black-brown block material is discharged to a ball mill for ball milling for hours to obtain a dark-brown infrared reflective pigment;

[0024] 2) Preparation of water-based color paste

[0025] Take 55% filler titanium dioxide, 5% infrared reflective pigment, 39.5% tap water and 0.5% dispersant BYK-110 by mass fraction, add the dispersant to tap water under stirring, and then add the dispersant to the tap water Add fillers and infrared reflective pigments in sequence, and after mixing evenly, ball mill for 2 hours to obtain water-based color paste;

[0026] 3) The paint formula is as follows: 50% styrene-acrylic emulsion, 25% alkaline silica sol with a solid co...

Embodiment 2

[0030] 1) Preparation of infrared reflective pigments

[0031] First, mix cobalt oxide, iron oxide and chromium oxide at 12%, 45% and 43% by mass, then grind the mixed powder, and calcinate the ground and mixed powder at 900°C for 8 hours, then cool to obtain a dark brown block Body material, finally the black-brown bulk material is discharged to a ball mill for ball milling for 4 hours to obtain a dark-brown infrared reflective pigment;

[0032] 2) Preparation of water-based color paste

[0033] Take 65% filler talcum powder, 2.5% infrared reflective pigments, 31.8% tap water and 0.7% dispersant BYK-110 by mass fraction, add the dispersant to tap water under stirring, and then add the dispersant to the tap water Add fillers and infrared reflective pigments in sequence, and after mixing evenly, ball mill for 1 hour to obtain water-based color paste;

[0034] 3) The paint formula is as follows: 75% styrene-acrylic emulsion, 20% water-based color paste, 4% film-forming aid est...

Embodiment 3

[0038] 1) Preparation of infrared reflective pigments

[0039] First, mix aluminum oxide, iron oxide and chromium oxide at 10%, 55% and 35% by mass, then grind the mixed powder, and calcinate the ground and mixed powder at 920°C for 7.5 hours, then cool to obtain a dark brown block Body material, finally the black-brown bulk material is discharged to a ball mill for ball milling for 3 hours to obtain a dark-brown infrared reflective pigment;

[0040] 2) Preparation of water-based color paste

[0041] Take 65% filler mica powder, 4.4% infrared reflective pigment, 30% tap water and 0.6% dispersant BYK-110 by mass fraction, add the dispersant to the tap water under stirring, and then add the dispersant to the tap water Add fillers and infrared reflective pigments in sequence, and ball mill for 1.5 hours to obtain water-based color paste after mixing evenly;

[0042] 3) The paint formula is as follows: 60% styrene-acrylic emulsion, 35% water-based color paste, 3.5% film-forming ...

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PUM

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Abstract

The invention discloses a deep color environmentally-friendly thermal-insulation exterior wall coating and a preparation method thereof. The deep color environmentally-friendly thermal-insulation exterior wall coating comprises an aqueous color paste production procedure and a color paint production procedure. Aqueous color paste is prepared by mixing a filler, a self-prepared infrared reflective pigment, running water and a dispersant according to a certain ratio and ball milling; and a color paint is prepared by simply and mechanically dispersing and mixing styrene-acrylate emulsion, silica solution, the self-prepared aqueous color paste, a film-forming assistant, a pH regulator and a defoamer according to a certain ratio. The coating meets GB / 18582-2001 environment-protection requirements, the thermal-insulation temperature difference of the coating is 10 to 20 DEG C, and the physical properties of the coating all reach national standards. The coating is deep color thermal-insulation coating, can change the market situation that the conventional building thermal-insulation coatings in China are white or light colored and satisfy increasingly growing consumption and spirit needs of people, and has large market application space.

Description

technical field [0001] The invention relates to a paint belonging to the field of chemical industry, in particular to a dark-color environment-friendly heat-insulating exterior wall paint and a preparation method thereof. Background technique [0002] With the development of society and the improvement of people's living standards, more attention is paid to energy saving, environmental protection and safety in the selection and use of building materials. For architectural coatings with decorative, protective and livable improvement functions, energy conservation, environmental protection and safety are particularly important, and they are also effective measures for the implementation of energy conservation and emission reduction targets in various countries. A series of energy-saving and environmentally friendly architectural coatings have emerged, the most typical of which are white roof coatings and white or light-colored wall coatings, which can significantly reduce the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D5/33
Inventor 袁新强冯小明张营堂杨晓明艾桃桃任金玲
Owner SHAANXI UNIV OF TECH