Preparation method of waterproof thermal-insulation exterior wall coating for building

一种保温外墙、建筑用的技术，应用在涂层等方向，能够解决影响建筑物美观程度、降低建筑物使用寿命、易渗入墙面等问题，达到表面活性位点多、光泽度提高、克服热黏冷脆的效果

Inactive Publication Date: 2022-02-11
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 preparation method of a waterproof thermal-insulation exterior wall coating for buildings, and the coating comprises the following components: a fluorosilicone modified acrylic emulsion, a graphene-acrylic acid composite emulsion, silica sol, activated carbon fiber powder, fluorosilane, titanium dioxide and an auxiliary agent, the auxiliary agent comprises 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 silica sol, activated carbon fiber powder and titanium dioxide, adding fluorosilicone modified acrylic emulsion and graphene-acrylic composite emulsion, uniformly mixing, adding the auxiliary agent, uniformly mixing, and finally mixing fluorosilane. The waterproof thermal-insulating exterior wall coating for the buildings has excellent waterproof and heat-insulating properties, is self-cleaning and washable, and is suitable for various external environments.

Description

technical field [0001] The present invention is a divisional application with the application number "202011207818.2" and the name "A waterproof and thermal insulation exterior wall coating for buildings and its preparation method". 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 ...

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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