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Nanometer heat-insulation exterior coating and preparation method thereof

An exterior wall coating and nano-thermal insulation technology, applied in the direction of reflection/signal coatings, coatings, etc., can solve the problems of low sunlight reflection ratio, poor reflection effect, unsatisfactory heat insulation effect, etc., and achieve uniform film structure, Low cost, make up for the effect of poor reflection

Inactive Publication Date: 2017-05-31
BNSA NEW MATERIAL SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hollow vitrified microspheres of this patent have poor reflection effects on infrared rays and red light with shorter wavelengths, resulting in low reflection of the entire sunlight and unsatisfactory heat insulation effect

Method used

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  • Nanometer heat-insulation exterior coating and preparation method thereof
  • Nanometer heat-insulation exterior coating and preparation method thereof
  • Nanometer heat-insulation exterior coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A nano heat-insulating exterior wall paint, comprising the following components in parts by weight: 25 parts of resin mixed emulsion, 18 parts of titanium dioxide, 5 parts of kaolin, 7 parts of heavy calcium, 8 parts of ceramic microbeads, and 0.2 parts of film-forming aid , 1.5 parts of propylene glycol, 0.1 part of wetting agent, 0.1 part of neutralizing amine, 0.4 part of fungicide, 0.2 part of defoamer, 0.5 part of alkali swelling thickener, and 25 parts of water. The titanium dioxide is nano-rutile titanium dioxide with a particle size of 700nm, and the particle size of the ceramic microbeads is 15-20 μm. The resin mixed emulsion is made by mixing pure acrylic emulsion and modified silicone acrylic emulsion at a mass ratio of 3:1. The solid content of pure acrylic emulsion is 35%, the particle size of the emulsion is 0.1-0.2μm, the viscosity of the emulsion is 300, and the detection condition is : 3#.60rpm, 25°C, the solid content of the modified silicon-acrylic em...

Embodiment 2

[0040] A nano heat-insulating exterior wall paint, comprising the following components in parts by weight: 40 parts of resin mixed emulsion, 22 parts of titanium dioxide, 13 parts of kaolin, 10 parts of heavy calcium, 10 parts of ceramic microbeads, and 0.3 parts of film-forming aid , 0.5 parts of propylene glycol, 0.2 parts of wetting agent, 0.2 parts of neutralizing amine, 0.5 parts of fungicide, 0.3 parts of defoamer, 1 part of alkali swelling thickener, and 30 parts of water. The titanium dioxide is nano-rutile titanium dioxide with a particle size of 700nm, and the particle size of the ceramic microbeads is 15-20 μm. The resin mixed emulsion is made by mixing pure acrylic emulsion and modified silicon acrylic emulsion at a mass ratio of 2:1. The solid content of pure acrylic emulsion is 35%, the particle size of the emulsion is 0.1-0.2μm, the viscosity of the emulsion is 1500, and the detection condition is : 3#.60rpm, 25°C, the solid content of the modified silicon-acryl...

Embodiment 3

[0047] A nano heat-insulating exterior wall paint, comprising the following components in parts by weight: 30 parts of resin mixed emulsion, 20 parts of titanium dioxide, 15 parts of kaolin, 6 parts of heavy calcium, 9 parts of ceramic microbeads, and 0.4 parts of film-forming aid , 1.5 parts of propylene glycol, 0.3 parts of wetting agent, 0.3 parts of neutralizing amine, 0.6 parts of bactericide, 0.4 parts of defoamer, 1.5 parts of alkali swelling thickener, and 25 parts of water. The titanium dioxide is nano-rutile titanium dioxide with a particle size of 700nm, and the particle size of the ceramic microbeads is 15-20 μm. The resin mixed emulsion is made by mixing pure acrylic emulsion and modified silicone acrylic emulsion at a mass ratio of 2.5:1. The solid content of pure acrylic emulsion is 35%, the particle size of the emulsion is 0.1-0.2μm, the viscosity of the emulsion is 900, and the detection conditions are : 3#.60rpm, 25°C, the solid content of the modified silico...

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Abstract

The invention relates to a nanometer heat-insulation exterior coating and a preparation method thereof. The coating comprises the following ingredients (by weight): 25-40 parts of a resin synthetic emulsion, 30-45 parts of powder, 3-5 parts of an auxiliary agent and 20-30 parts of water. The preparation method comprises the following steps: firstly adding water into a stirring tank and stirring at low speed, adding part of the auxiliary agent and uniformly mixing, adding powder, raising stirring speed of the stirring tank and dispersing, reducing stirring speed of the stirring tank, successively adding the resin mixed emulsion and the other part of the auxiliary agent, and adjusting to required viscosity by adding a thickening agent so as to prepare the nanometer heat-insulation exterior coating. In comparison with the prior art, the nanometer heat-insulation exterior coating has excellent heat insulation property, water resistance, stain resistance, etc.

Description

technical field [0001] The invention relates to an exterior wall paint, in particular to a nano heat-insulating exterior wall paint and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, there is a certain demand for environmental protection awareness and energy conservation, coupled with the encouragement of policies, the exterior walls are basically made of insulation first, and then paint. Building exterior wall thermal insulation coatings are divided into three types according to their thermal insulation mechanism: 1) barrier coatings that increase the thermal resistance of the external wall to block and reduce heat conduction and heat convection; 2) reflective coatings that reflect visible light and infrared light to reduce the temperature of the external wall Heat-insulating coating; 3) Radiant coating that emits sunlight and heat absorbed by the exterior wall to the outside through radiation. The thermal ins...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D5/33C09D7/12
Inventor 侯进全
Owner BNSA NEW MATERIAL SHANGHAI CO LTD