Thermal insulation coating for building exterior walls and preparation method thereof

A technology for heat insulation and building exterior walls, applied in the direction of reflection/signal coatings, coatings, etc., can solve the problems of thermal insulation characteristics to be improved, complicated process, and many steps in the production process, and achieve excellent thermal insulation performance, Increase the microporosity and improve the effect of thermal insulation performance

Inactive Publication Date: 2020-10-27
马鞍山市金韩防水保温工程股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the performance of the thermal insulation coating of exterior wall panels is mainly improved from the screening of emulsion, fillers, additives and their mutual dispersion and stability. The Chinese invention patent with the patent number of CN03118029.9 discloses a multifunctional nano-scale building exterior A wall paint and a preparation method thereof. The building exterior wall paint us

Method used

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  • Thermal insulation coating for building exterior walls and preparation method thereof

Examples

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Example Embodiment

[0037] The preparation method of the coating is as follows:

[0038] Add silicone-acrylic emulsion, modified aerogel, floating beads, reinforcing fillers, Glauber's salt and additives to the reaction kettle in proportion, first stir at 300r / min for 40-50min, and then grind for 10-12min with a high-speed dispersion mill Stir at 3000r / min for 25-30min to obtain thermal insulation coating.

Example Embodiment

[0039] Example 1

[0040] A thermal insulation coating for building exterior walls, which is made of the following parts by weight of raw materials: 50 parts by weight of silicone-acrylic emulsion, 18 parts of modified aerogel, 7 parts of floating beads, 3 parts of reinforcing filler, 2 parts of Glauber's salt, and 0.6 parts of additives Copies

[0041] The thermal insulation coating is made by the following steps:

[0042] Add silicone-acrylic emulsion, modified aerogel, floating beads, reinforcing fillers, Glauber's salt and additives into the reaction kettle in proportion, first stir at 300r / min for 40min, then grind by high-speed dispersing mill for 10min, and then 3000r / min Stir for 25 minutes to obtain thermal insulation coating.

Example Embodiment

[0043] Example 2

[0044] A thermal insulation coating for building exterior walls, which is made of the following parts by weight of raw materials: 55 parts by weight of silicone acrylic emulsion, 20 parts of modified aerogel, 8 parts of floating beads, 3.5 parts of reinforcing filler, 2.5 parts of Glauber's salt, and 0.8 parts of additives Copies

[0045] The thermal insulation coating is made by the following steps:

[0046] Add silicone-acrylic emulsion, modified aerogel, floating beads, reinforcing fillers, Glauber's salt and additives into the reaction kettle in proportion, first stir at 300r / min for 45min, and then grind by a high-speed dispersing mill for 11min, then 3000r / min Stir for 28 minutes to obtain thermal insulation coating.

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Abstract

The invention discloses a thermal insulation coating for building exterior walls. The thermal insulation coating is prepared from the following raw materials in parts by weight: 50-60 parts of a silicone acrylic emulsion, 18-22 parts of modified aerogel, 7-9 parts of floating beads, 3-4 parts of reinforcing filler, 2-3 parts of mirabilite and 0.6-1 part of auxiliaries. The invention also disclosesa preparation method of the thermal insulation coating. According to the invention, the modified aerogel is added into the coating, the silicon dioxide aerogel can be uniformly dispersed in the coating after being modified, and the aerogel can greatly improve the microporosity in the coating and prolong the heat conduction path, so that the thermal insulation performance of the coating is improved; besides, materials (rutile titanium dioxide and silicon carbide) capable of reflecting radiant heat are introduced to block a propagation path of radiant heat conduction, and a phase change energystorage material (mirabilite) is used as an efficient storage substance of heat energy, so that the coating has excellent heat preservation and heat insulation performance by starting from three paths(conduction, radiation and convection) of heat transfer.

Description

technical field [0001] The invention belongs to the technical field of architectural coatings, and in particular relates to a thermal insulation coating for building exterior walls and a preparation method thereof. Background technique [0002] As the pace of urban construction continues to accelerate, the installed capacity of air-conditioning and heating equipment continues to increase, which makes the proportion of building energy consumption continue to increase. The significance of building energy conservation is becoming more and more important. The thermal insulation of building exterior walls is an important part of building energy conservation. Coatings applied to exterior wall concrete or exterior wall panels are exposed to the atmospheric environment and undergo natural changes in climate such as wind, sun, and rain, which will cause the coating to chalk, discolor, peel off, stain, etc. Lose the original decorative effect, thereby affecting the appearance of the b...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D5/33C09D7/62C09D7/61
CPCC08K2003/2241C08K2003/3045C09D5/004C09D143/04C09D7/61C09D7/62C09D7/70C08K13/06C08K3/22C08K3/34C08K9/04C08K7/26C08K3/30
Inventor 代群范红张亮代琴
Owner 马鞍山市金韩防水保温工程股份有限公司
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