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Economical and environment-friendly external wall thermal insulating coating material and preparing method thereof

A technology of thermal insulation coating and coating material, applied in the direction of coating, anti-corrosion coating, reflection/signal coating, etc., can solve the problems of poor coating performance, poor dispersion of nanoparticles, and high price of nano-calcium carbonate, and achieve construction Convenience, improve thermal insulation performance, highlight the effect of comprehensive performance

Inactive Publication Date: 2017-02-22
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are few commercial thermal insulation coatings currently used, and the coatings basically use ordinary titanium dioxide as the pigment and nano-calcium carbonate as the filler.
For thermal insulation coatings using nano-calcium carbonate as filler, due to the poor dispersion of nanoparticles, it is very easy to agglomerate, so the performance of the coating is not very good, and the price of nano-calcium carbonate is high, which eventually leads to the price of the coating. higher

Method used

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  • Economical and environment-friendly external wall thermal insulating coating material and preparing method thereof
  • Economical and environment-friendly external wall thermal insulating coating material and preparing method thereof
  • Economical and environment-friendly external wall thermal insulating coating material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Weigh the raw materials according to the following ratio:

[0036] Water-based fluorocarbon emulsion 50g;

[0037] Titanium dioxide 17g;

[0038] Hollow microspheres 1g;

[0039] Sodium stearate modified shell powder 10g;

[0040] Wetting agent 0.5g;

[0041] Dispersant 0.5g

[0042] Defoamer 0.5g;

[0043] Coalescing aid 0.5g;

[0044] 20g of water.

[0045] 2. Preparation of sodium stearate modified shell powder: weigh shell powder and sodium stearate with a mass of 0.1% to 3.0% of shell powder, dissolve it in alcohol 10 times the mass of shell powder, ultrasonically disperse for 30 minutes, and then Heating to 70°C, and stirring at a speed of 1000r / min for one hour during the heating process, filtering and drying after the stirring is completed, to obtain sodium stearate modified shell powder.

[0046] 3. Add titanium dioxide, sodium stearate modified shell powder, wetting agent, dispersant, defoamer and water to the water-based fluorocarbon emulsion, and ...

Embodiment 2

[0066] 1. Weigh the raw materials according to the following ratio:

[0067] Water-based fluorocarbon emulsion 30g;

[0068] Titanium dioxide 10g;

[0069] Hollow microspheres 5g;

[0070] Sodium stearate modified shell powder 20g;

[0071] Wetting agent 3g;

[0072] Dispersant 3g;

[0073] Defoamer 3g;

[0074] Film-forming aid 3g;

[0075] 23g of water.

[0076] The preparation of the coating in this example was carried out according to the preparation steps of Example 1, and an economical and environment-friendly exterior wall heat-insulating coating material with a dosage of sodium stearate modified shell powder of 20 g was obtained.

[0077] The solar reflectance of this economical and environmentally friendly exterior wall thermal insulation coating in the visible light band (420nm-720nm) and near-infrared band (720nm-2500nm) has reached 84%; the adhesion is grade 1, and there is no abnormality in the water resistance for 96 hours. No blistering, no peeling, no c...

Embodiment 3

[0079] 1. Weigh the raw materials according to the following ratio:

[0080] Water-based fluorocarbon emulsion 35g;

[0081] Titanium dioxide 20g;

[0082] Hollow microspheres 3g;

[0083] Sodium stearate modified shell powder 14g;

[0084] Wetting agent 1g;

[0085] Dispersant 0.5g;

[0086] Defoamer 1g;

[0087] Coalescing aid 0.5g;

[0088] 25g of water.

[0089] The preparation of the coating in this example was carried out according to the preparation steps of Example 1, and an economical and environment-friendly exterior wall heat-insulating coating with a dosage of sodium stearate modified shell powder of 14 g was obtained.

[0090] The solar reflectance of this economical and environmentally friendly exterior wall thermal insulation coating in the visible light band (420nm-720nm) and near-infrared band (720nm-2500nm) has reached 85%; the adhesion is level 1, and there is no abnormality in the water resistance for 96 hours. The weather resistance test No blister...

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Abstract

The invention discloses an economical and environment-friendly external wall thermal insulating coating material and a preparing method thereof. According to the economical and environment-friendly external wall thermal insulating coating material, sodium stearate modified shell powder and hollow microsphere are adopted as main filler, adopted emulsion is water-borne fluorocarbon emulsion, and pigment is titanium dioxide; the preparing method of the economical and environment-friendly external wall thermal insulating coating comprises the steps of 1, weighing raw materials according to the mass ratios of components in the washing-resistant thermal insulating external wall coating; 2, adding the titanium dioxide, the sodium stearate modified shell powder, a wetting agent, a dispersant, a antifoaming agent and water into the water-borne fluorocarbon emulsion, afterwards grinding and dispersing evenly at a room temperature to obtain the mixture; 3, adding the hollow microsphere and a coalescing agent into the mixture, and stirring to obtain the economical and environment-friendly external wall thermal insulating coating material. The economical and environment-friendly external wall thermal insulating coating material greatly saves costs, and improves dispersing performance and thermal insulating performance of the filler, construction is convenient, and the coating has excellent comprehensive performance.

Description

technical field [0001] The invention belongs to the field of coating materials, and in particular relates to an economical and environment-friendly exterior wall heat-insulation coating material and a preparation method thereof. Background technique [0002] In civil buildings, the surface temperature of the wall increases after receiving the strong radiant light from the sun continuously. For example, in hot summer, the temperature of the exterior wall and roof surface of the building can reach 40-50 °C, and the surface temperature of metal objects can reach 70-70 °C. 80°C. The increase in the temperature of the building's exterior walls also increases the temperature inside the house. In today's society, in order to reduce the temperature of their living environment, human beings use a large number of sprinklers, electric fans, air conditioners, air conditioners, etc., and the energy consumed by these cooling and refrigeration equipment accounts for more than 20% of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D5/08C09D5/33C09D5/16C09D7/12
CPCC09D127/12C08K3/26C08K5/098C08K7/26C08K13/04C08K2003/265C08K2201/003C09D5/004C09D5/08C09D5/1662C09D5/1687
Inventor 张亚梅唐强张培根孙正明施锦杰田无边
Owner SOUTHEAST UNIV
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