SiO2 aerogel thermal insulation latex paint and preparation method thereof

A thermal insulation and latex coating technology, applied in latex paint, coatings, fibrous fillers, etc., can solve the problems affecting the service life of building thermal insulation systems, the reduction of thermal insulation performance of coatings, and the thickness of thermal insulation coatings. Achieve good heat insulation effect, improve performance, and simple construction

Active Publication Date: 2012-07-25
广州泰祥混凝土外加剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently commonly used thermal insulation coatings are mostly prepared by using conventional thermal insulation coatings such as sepiolite, expanded perlite, expanded vermiculite, etc. as thermal insulation additives. Easy to stain and other shortcomings, not suitable for use on building exterior walls and easily affect the service life of building insulation systems
[0003] Airgel, as a new type of lightweight super thermal insulation material with good thermal insulation performance, has a nanoporous structure with a controllable structure. Due to its unique nanostructure, it has unique properties such as low thermal conductivity, low density and high specific surface area. Performance, the thermal conductivity is about 0.013W/m·K, and the density is 0.11~0.15g/cm 3 , high specific surface area is about 500 ~ 1200m 2 /g, and the airgel has superhydrophobicity with a

Method used

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  • SiO2 aerogel thermal insulation latex paint and preparation method thereof
  • SiO2 aerogel thermal insulation latex paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1:

[0045] This embodiment is SiO by mass percentage 2 1% of aerogel particles, 89% of silicone-acrylic exterior wall latex paint and 10% of deionized water are mixed and configured.

[0046] First use deionized water to dilute the silicone-acrylic exterior wall latex paint, and place it on a magnetic stirrer for 20 minutes, then divide it into two parts of equal mass, labeled A and B respectively, and use A as a control sample; Weigh 1% SiO by mass 2 One part of aerogel particles and part B of diluted latex paint are mixed and stirred for 20 minutes to obtain uniformly mixed SiO 2 Aerogel thermal insulation latex paint and marked as C, the following is A part of silicone acrylic exterior wall latex paint and C part of SiO 2 Comparison of the performance of aerogel thermal insulation latex coatings:

[0047] First, clean the surface of the ordinary white glass sheet with a size of 25mm×30mm and a thickness of 5mm. That is, first use a neutral detergent to remove vario...

Example Embodiment

[0048] Example 2:

[0049] The content of this embodiment is SiO by mass percentage 2 5% of aerogel particles, 80% of silicone acrylic exterior wall latex paint and 15% of deionized water are mixed and configured. The procedure is the same as in Example 1. The thermal conductivity of the sample is measured by the flat-panel transient thermal conductivity meter, and the silicone acrylic exterior wall latex paint and SiO can be obtained correspondingly 2 The thermal conductivity of aerogel thermal insulation latex coatings is 0.976, 0.887, 0.844W / mK and 0.611, 0.520, 0.397W / mK, respectively. It can be seen that adding 5% SiO 2 After aerogel, SiO 2 Compared with silicone acrylic exterior wall latex paint, the thermal conductivity of silicone aerogel thermal insulation latex paint is reduced by more than 40%.

Example Embodiment

[0050] Example 3:

[0051] The content of this embodiment is SiO by mass percentage 2 10% of aerogel particles, 75% of silicone-acrylic exterior wall latex paint and 15% of deionized water are mixed and configured. The steps are the same as in Example 1, except that the volume of the selected silicone acrylic exterior wall latex paint and thermal insulation latex paint is 100mm respectively 3 , 450mm 3 , And then can obtain silicone acrylic exterior wall latex paint and SiO with thicknesses of 0.1mm and 0.6mm respectively 2 Aerogel thermal insulation latex coating. Use the flat transient thermal conductivity meter to measure the thermal conductivity of the sample, which can correspond to the silicone acrylic exterior wall latex paint and SiO 2 The thermal conductivity of aerogel thermal insulation latex coatings are 1.075, 0.976W / mK, 0.214 and 0.187W / mK, respectively. It can be seen that after adding 10% aerogel, SiO 2 The thermal conductivity of aerogel thermal insulation latex ...

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Abstract

The invention discloses a SiO2 aerogel thermal insulation latex paint and a preparation method of the SiO2 aerogel thermal insulation latex paint. The paint is formed by proportionally stirring SiO2 aerogel particles, emulsion paint and water. The SiO2 aerogel thermal insulation latex paint has the characteristics of good thermal insulation, flame resistance, high temperature resistance, incombustibility, high safety, high toughness, high compactness and the like, and is good thermal insulation paint.

Description

technical field [0001] The invention relates to a thermal insulation coating, in particular to a high-performance SiO 2 Airgel thermal insulation latex paint and preparation method thereof. Background technique [0002] Building energy consumption accounts for 30% to 40% of human energy consumption, while in developed cities the energy consumed by heating and heating in summer and winter has accounted for 40% to 50% of the total energy consumption of buildings. Thermal insulation performance is an important way to reduce building energy consumption and improve building functions. In recent years, the method of using energy-saving thermal insulation mortar and thermal insulation coating on the wall of buildings has attracted more and more attention. However, currently commonly used thermal insulation coatings are mostly prepared by using conventional thermal insulation coatings such as sepiolite, expanded perlite, expanded vermiculite, etc. as thermal insulation additives. ...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D133/04C09D131/04C09D123/16C09D125/14C09D5/02C09C1/28C09C3/12
Inventor 吴会军丁云飞廖云丹张宝玉
Owner 广州泰祥混凝土外加剂有限公司
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