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Super-hydrophobic self-cleaning heat-insulating building external wall coating

A technology for thermal insulation, exterior wall coating, applied in building construction, antifouling/underwater coatings, construction, etc., can solve problems such as poor self-cleaning effect, achieve good chemical stability, high optical properties, excellent The effect of thermal insulation

Active Publication Date: 2018-12-14
中山多涂乐建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coating mainly utilizes the surface cleaning performance of fluorine atoms and the photocatalytic performance of nanomaterials, but its actual self-cleaning effect is not good.

Method used

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  • Super-hydrophobic self-cleaning heat-insulating building external wall coating
  • Super-hydrophobic self-cleaning heat-insulating building external wall coating
  • Super-hydrophobic self-cleaning heat-insulating building external wall coating

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preparation example Construction

[0044] The preparation method of above-mentioned insulating coating is as follows:

[0045] (1) After mixing pure acrylic elastic emulsion and flexible acrylic emulsion water-based epoxy resin emulsion, add redispersible latex powder, wollastonite powder, water town powder and 2-hydroxyethyl cellulose under high-speed stirring at 3000r / min , adhesion promoter, obtain mixed material A;

[0046] (2) Add polyacrylic acid hollow spheres into water, add modified nano-ceramic hollow microspheres in batches under high-speed stirring at 2000r / min, and continue high-speed stirring for 30-50min to obtain mixture B;

[0047] (3) Add the mixed material B into the mixed material A, and stir at 2000r / min for 10min to obtain the thermal insulation coating.

[0048] The preparation method of above-mentioned self-cleaning paint is as follows:

[0049] (1) Add dispersant NNO and ammonia water to water, disperse ultrasonically for 30 minutes under high-speed stirring at 2000r / min, then add mod...

Embodiment 1

[0052] A superhydrophobic self-cleaning thermal insulation building exterior wall coating, comprising a putty layer from inside to outside, thermal insulation coating and self-cleaning coating, the thickness of the putty layer is 5mm, the thickness of thermal insulation coating is 1mm, and the thickness of self-cleaning coating is 0.5mm;

[0053] The thermal insulation coating is composed of component A and component B in a weight ratio of 50:3. Component A includes the following components in parts by weight: 50 parts of pure acrylic elastic emulsion, 40 parts of flexible acrylic emulsion, and 30 parts of water-based epoxy resin emulsion , 15 parts of redispersible latex powder, 15 parts of wollastonite powder, 25 parts of modified nano-ceramic hollow microspheres (with a particle size of 20-50nm), 25 parts of polyacrylic acid hollow spheres (with a particle size of 0.5-5μm), township 4 parts of water powder, 3 parts of 2-hydroxyethyl cellulose, 2 parts of β-(3,4 epoxycyclohex...

Embodiment 2

[0065] A superhydrophobic self-cleaning thermal insulation building exterior wall coating, comprising a putty layer from inside to outside, thermal insulation coating and self-cleaning coating, the thickness of the putty layer is 5mm, the thickness of thermal insulation coating is 1mm, and the thickness of self-cleaning coating is 0.5mm;

[0066] The thermal insulation coating is composed of component A and component B at a weight ratio of 50:1. Component A includes the following components in parts by weight: 40 parts of pure acrylic elastic emulsion, 30 parts of flexible acrylic emulsion, and 20 parts of water-based epoxy resin emulsion , 10 parts of redispersible latex powder, 10 parts of wollastonite powder, 20 parts of modified nano-ceramic hollow microspheres (with a particle size of 20-50nm), 20 parts of polyacrylic acid hollow spheres (with a particle size of 0.5-5μm), township 1 part of water powder, 1 part of 2-hydroxyethyl cellulose, 1 part of γ-mercaptopropyltrimeth...

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Abstract

The invention provides a super-hydrophobic self-cleaning heat-insulating building external wall coating and relates to the technical field of coating. The super-hydrophobic self-cleaning heat-insulating building external wall coating comprises a putty layer, a heat-insulating coating and a self-cleaning coating from inside to outside; the heat-insulating coating consists of a component I and a component II according to the weight ratio of 50 to 1-5; the component I comprises the following components in parts by weight: a pure acrylic emulsion, a flexible acrylic acid emulsion, a water-based epoxy resin emulsion, a redispersible latex powder, an aedelforsite powder, modified nanometer ceramic hollow microspheres, polyacrylic acid hollow spheres, an anti-water powder, 2-hydroxyethyl cellulose, an adhesion promoter and water; the component II is a curing agent DX-50A; the self-cleaning coating consists of a component A and a component B according to the weight ratio of 100 to 1-5; the component A comprises the following components in parts by weight: an organic silicon emulsion, a fluorinated acrylate emulsion, modified nanometer silicon dioxide, polydimethylsiloxane, a dispersing agent NNO, ammonia water and water; the component B is a silane coupling agent KH550; and heat-insulating and self-cleaning effects are achieved.

Description

technical field [0001] The invention relates to the technical field of paints, in particular to a superhydrophobic self-cleaning paint for exterior walls of heat-retaining and heat-insulating buildings. Background technique [0002] Exterior wall coating is the most widely used type of coating in architectural coatings. With the continuous improvement of people's production and living standards, people's requirements for exterior wall coatings are getting higher and higher. They must not only have decorative properties, but also have thermal insulation and waterproof properties. , anti-corrosion, self-cleaning and many other properties, so exterior wall coatings with multiple properties at the same time came into being. [0003] The Chinese patent with the application number 201510355482.7 discloses a thermal insulation coating and its preparation method and thermal insulation coating. The thermal insulation coating includes the following components in parts by mass: 15-30 p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D163/00C09D121/00C09D183/04C09D5/16C09D7/61C09D7/62C09D7/65C09D7/63E04F13/02
CPCC08K2201/011C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08L2205/20C09D5/1675C09D5/1687C09D133/04C09D183/04C09D7/61C09D7/62C09D7/65C09D7/70E04F13/02C08L33/04C08L63/00C08L21/00C08L33/02C08L1/284C08K13/06C08K3/34C08K7/24C08L83/04C08K3/36C08K5/544
Inventor 陈群
Owner 中山多涂乐建材有限公司
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