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Environment-friendly waterborne sliced rock paint for coating external walls of buildings and preparation method thereof

An environmentally friendly technology for building exterior walls, applied in the field of decorative paint, can solve the problems of complicated preparation process, heavy weight, and many raw materials used, and achieve the effect of simple production process, superior product performance, and realistic stone-like effect

Inactive Publication Date: 2017-11-03
GUANGXI TEACHERS EDUCATION UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention patent CN 102391751 A discloses a water-in-water multi-color coating, which imitates granite with realistic effect, but the method has many preparation steps and high price
Chinese invention patent CN 101250345 B discloses a preparation method of natural rock flake paint. The natural rock flake paint prepared by the invention has a lifelike stone imitation effect after being painted, but it uses many raw materials and the preparation process is complicated. The method uses artificially synthesized rock flake as filler. Heavy weight, poor weather and water resistance

Method used

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  • Environment-friendly waterborne sliced rock paint for coating external walls of buildings and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] First, add distilled water, rare earth element compound and titanium source P25 into the reaction kettle in a certain proportion, wherein the mass ratio of distilled water, lanthanum nitrate and titanium source P25 is 1000:1:20, and then stir at a speed of 1000 rpm After 15 minutes, a white suspension dispersion was formed. After hydrothermally treating the above reaction kettle at 180°C for 8-10 hours, suction filtration, washing and roasting at 600°C for 5 hours, the rare earth element-coated nano-titanium dioxide can be obtained. Such as figure 1 shown. Secondly, calculated by weight, add water 35%, wetting agent 0.1%, defoamer 0.4%, multifunctional auxiliary agent 0.2%, film-forming auxiliary agent 3%, emulsion 35%, rare earth element package Coated with nano-titanium dioxide (that is, functional particles) 5%, natural rock slices 20%, thickener 1%, and bactericidal preservative 0.3%. After stirring for 30 minutes, an environmentally friendly water-based rock fla...

Embodiment 2

[0035] First, add distilled water, rare earth element compound and titanium source P25 into the reaction kettle in a certain proportion, wherein the mass ratio of distilled water, lanthanum nitrate and titanium source P25 is 1000:2:20, and then stir at a speed of 1000 rpm After 15 minutes, a white suspension dispersion was formed. After hydrothermally treating the above reaction kettle at 180°C for 8-10 hours, suction filtration, washing and roasting at 600°C for 5 hours, the rare earth element-coated nano-titanium dioxide can be obtained. Secondly, calculated by weight, add water 35%, wetting agent 0.1%, defoamer 0.4%, multifunctional auxiliary agent 0.2%, film-forming auxiliary agent 3%, emulsion 35%, rare earth element package Coated with nano-titanium dioxide (that is, functional particles) 5%, natural rock slices 20%, thickener 1%, and bactericidal preservative 0.3%. After stirring for 30 minutes, an environmentally friendly water-based rock flake paint can be obtained, ...

Embodiment 3

[0037] First, add distilled water, rare earth element compound and titanium source P25 into the reaction kettle in a certain proportion, wherein the mass ratio of distilled water, rare earth element compound and titanium source P25 is 1000:2:20, and the rare earth element compound is lanthanum nitrate and nitric acid Cerium was obtained by mixing at a mass ratio of 1:1, and then stirred at a speed of 1000 rpm for 15 minutes to form a white suspension dispersion. After hydrothermally treating the above reaction kettle at 180°C for 8-10 hours, suction filtration, washing and roasting at 600°C for 5 hours, the rare earth element-coated nano-titanium dioxide can be obtained. Secondly, calculated by weight, add water 35%, wetting agent 0.1%, defoamer 0.4%, multifunctional auxiliary agent 0.2%, film-forming auxiliary agent 3%, emulsion 35%, rare earth element package Coated with nano-titanium dioxide (that is, functional particles) 5%, natural rock slices 20%, thickener 1%, and bact...

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Abstract

The invention discloses environment-friendly waterborne sliced rock paint for coating external walls of buildings and a preparation method thereof. The environment-friendly waterborne sliced rock paint contains nano titanium dioxide, wherein a rare earth element covers an outer part of the nano titanium dioxide; the nano titanium dioxide is wrapped into functional granules with the grain diameter of 30nm to 50nm by the rare earth element. The functional granules are prepared by adopting the following methods: adding distilled water, the rare earth element compound and titanium sources P25 into a reaction kettle in a proportion; then stirring for 15 minutes at a rotation speed of 1000 revolutions per minute to form white suspended and turbid dispersed liquid, wherein the mass ratio of the distilled water to the rare earth element compound to the titanium sources P25 is 1000 to (1 to 2) to 20; continuously carrying out hydrothermal treatment on the reaction kettle for 8 hours to 10 hours at temperature of 180 DEG C; carrying out suction filtration and washing and roasting for 5 hours at temperature of 600 DEG C to obtain the functional granules. According to the waterborne sliced rock paint disclosed by the invention, the rare earth element covers the outer part of the nano titanium dioxide to synthesize the functional granules, and the functional granules are added into a formula to ensure that a coating has functions of carrying out self-photodegradation on air pollutants and volatile organic compounds and has an environment-friendly effect.

Description

technical field [0001] The invention relates to the technical field of decorative paints, more specifically, the invention relates to an environment-friendly water-based rock flake paint used for coating exterior walls of buildings and a preparation method thereof. Background technique [0002] Environmentally friendly water-based exterior wall coatings mainly have the advantages of economy and environmental protection. At present, the world's coating industry is developing rapidly, and new environmentally friendly coatings have always been a requirement of the times due to the actual situation of environmental pollution in our country. [0003] Nano-titanium dioxide can generate electrons with strong reduction activity and holes with strong oxidation activity under light conditions, promote the decomposition of air pollutants and volatile organic compounds (VOC), and generate CO without secondary pollution. 2 and H 2 O. Rare earth elements such as lanthanum and cerium ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12
CPCC09D143/04C08K3/34C08K7/00C08K9/02C08K9/10C08K2003/2241C08K2201/005C08K2201/011
Inventor 韦良
Owner GUANGXI TEACHERS EDUCATION UNIV
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