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Waterproof thermal-insulation exterior wall coating for buildings and preparation method thereof

A technology for thermal insulation of exterior walls and buildings, applied in the direction of coating, etc., can solve the problems of reducing the service life of buildings, affecting the aesthetics of buildings, and easy penetration into walls, etc., to achieve increased gloss, more surface active sites, Overcome the hot sticky cold crisp effect

Active Publication Date: 2021-01-22
王洪磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-based acrylic paints on the market are often hot, sticky and brittle. In the dry environment below 0°C for a long time in northern my country, it is easy to crack, and the paint needs to play a certain role in heat preservation. In the warm and humid southern my country In the environment, water vapor, rainwater, etc. are easy to penetrate into the wall and corrode the wall, which not only affects the aesthetics of the building, but also reduces the service life of the building

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The first waterproof and thermal insulation exterior wall coating for buildings provided by this embodiment comprises the following components in parts by mass:

[0034] Fluorosilicone modified acrylic emulsion 50 parts

[0035] Graphene-acrylic composite emulsion 25 parts

[0036] Fluorosilane 15 parts

[0037] 15 parts of silica sol

[0038] Activated carbon fiber powder 15 parts

[0039] 25 parts of titanium dioxide

[0040] Auxiliary 5 parts

[0041] 25 parts of water.

[0042] Wherein: the solid content of fluorosilicon modified acrylic acid emulsion and graphene-acrylic acid composite emulsion is 50%-60%; the average particle diameter of described activated carbon fiber powder is 200-400 mesh; dispersant is sodium hexametaphosphate; wetting The agent is CO-630; the thickener is hydroxyethyl cellulose; the defoamer is mineral oil; the film-forming aid is dodecyl alcohol ester; the antifreeze is ethylene glycol.

Embodiment 2

[0044] The second waterproof and thermal insulation exterior wall coating for buildings provided by this embodiment comprises the following components in parts by mass:

[0045] Fluorosilicone modified acrylic emulsion 50 parts

[0046] 20 parts of graphene-acrylic composite emulsion

[0047] Fluorosilane 20 parts

[0048] 20 parts of silica sol

[0049] Activated carbon fiber powder 20 parts

[0050] 30 parts of titanium dioxide

[0051] Auxiliary 8 parts

[0052] 35 parts of water.

[0053]Among them: the solid content of fluorosilicon modified acrylic emulsion and graphene-acrylic composite emulsion is 50%-60%; the average particle size of the activated carbon fiber powder is 200-400 mesh; the dispersant is dispersant 5040; the wetting agent Including CO-630; thickener is hydroxyethyl cellulose; defoamer is silicone defoamer; film-forming aid is dodecyl alcohol ester; antifreeze is ethylene glycol.

Embodiment 3

[0055] The third waterproof and thermal insulation exterior wall coating for buildings provided by this embodiment includes the following components in parts by mass:

[0056] Fluorosilicone modified acrylic emulsion 45 parts

[0057] 15 parts of graphene-acrylic composite emulsion

[0058] Fluorosilane 10 parts

[0059] 10 parts of silica sol

[0060] Activated carbon fiber powder 10 parts

[0061] 20 parts of titanium dioxide

[0062] Auxiliary 1 part

[0063] 15 parts of water.

[0064] Wherein: the solid content of fluorosilicon modified acrylic acid emulsion and graphene-acrylic acid composite emulsion is 50%-60%; the average particle diameter of described activated carbon fiber powder is 200-400 mesh; dispersant is sodium hexametaphosphate; wetting The agent is CO-630; the thickener is hydroxyethyl cellulose; the defoamer is mineral oil; the film-forming aid is dodecyl alcohol ester; the antifreeze is ethylene glycol.

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Abstract

The invention discloses a waterproof thermal insulation exterior wall coating for buildings and a preparation method thereof. The waterproof thermal insulation exterior wall coating is prepared from afluorosilicone modified acrylic emulsion, graphene acrylic acid composite emulsion, silica sol, activated carbon fiber powder, fluorosilane, titanium dioxide and auxiliaries, and the auxiliaries comprise a dispersing agent, a wetting agent, a thickening agent, a defoaming agent, a coalescing agent and an anti-freezing agent. The preparation method comprises the following steps: uniformly mixing the silica sol, activated carbon fiber powder and titanium dioxide, adding a fluorosilicone modified acrylic emulsion and a graphene-acrylic composite emulsion, uniformly mixing, adding the assistant,uniformly mixing, and finally mixing with fluorosilane. The waterproof thermal insulation exterior wall coating for the building has excellent waterproof and thermal insulation properties, is self-cleaning and washable, and is suitable for various external environments.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a waterproof and thermal insulation exterior wall coating for buildings and a preparation method thereof. Background technique [0002] Architectural exterior wall coatings are coatings that are applied to the entire exterior wall of a building. Its main function is to decorate and protect the exterior wall, making the building look flat and beautiful, and at the same time protecting the building. Exterior wall paint needs to be exposed to the outdoor environment. Compared with interior wall paint, it faces a harsher environment, especially in some humid areas in the south, where the waterproof function of exterior wall paint is more demanding. [0003] In the prior art, acrylic emulsion is often used as the base material, and the prepared water-based acrylic paint has the advantages of moderate cost and good adjustability. However, the water-based acrylic paints on the market ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/10C09D7/61C09D7/63
CPCC09D143/04C09D7/61C09D7/70C09D7/63C08K2201/005C08L2205/035C08L33/10C08K13/06C08K3/36C08K3/042C08K7/26C08K5/54
Inventor 王洪磊
Owner 王洪磊
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