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Reflective thermal-insulation coating used for external wall

A technology for reflective heat-insulating coatings and exterior walls, applied in the field of coatings, can solve the problems of easy agglomeration, poor dispersion of hollow glass microspheres, uneven reflection and heat insulation, etc., and achieve the effect of increasing dispersion performance, not easy to fall off, and uniform film formation

Active Publication Date: 2019-08-23
浙江泰基涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, adding hollow glass microspheres to the formula of the above-mentioned reflective heat-insulating coating improves the reflective performance of the coating, but in the actual use process, the hollow glass microspheres have poor dispersion and are prone to agglomeration, resulting in The problem of uneven heat insulation in mid-reflection

Method used

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  • Reflective thermal-insulation coating used for external wall
  • Reflective thermal-insulation coating used for external wall

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1: A reflective and heat-insulating coating for exterior walls. The components and their corresponding parts by weight are shown in Table 1. Among them, the dispersant is sodium polyacrylate S298808 purchased from Shanghai Aladdin Biochemical Technology Co., Ltd., the wollastonite powder is purchased from Hubei Fengjiashan Silicon Fiber Co., Ltd. WP325, and the styrene-acrylic emulsion is purchased from Anping, Anhui The styrene-acrylic emulsion AP-168 of Building Materials Co., Ltd., the defoamer is the paint defoamer Z-5189 purchased from Shanghai Yuewan New Material Co., Ltd., and the wetting agent is the wetting agent OT purchased from Shanghai Yudun Chemical Co., Ltd. -75, the film-forming aid is purchased from the film-forming aid JS-PPH of Shanghai Banggao Chemical Co., Ltd., the leveling agent is purchased from the polyurethane leveling agent HT-880 of Nantong Hantai Chemical Co., Ltd., and the pH regulator is ammonia.

[0030] The modified microbeads i...

Embodiment 2-5

[0042] Embodiment 2-5: a kind of reflective heat-insulating paint for exterior walls, the difference from embodiment 1 is that the parts by weight of its raw materials are as shown in table 1:

[0043] Each component and parts by weight thereof in table 1 embodiment 1-5

[0044]

Embodiment 6

[0045] Embodiment 6: A reflective heat-insulating coating for exterior walls, the difference from Example 1 is that in the preparation method of modified microbeads, the ceramic microbeads are roughened before adding ceramic microbeads in step 1, The specific coarsening processing method is:

[0046] Mix ceramic microbeads and sodium fluoride uniformly at a mass ratio of 1:0.5 to obtain a mixed powder, then add the mixed powder to a hydrochloric acid solution with a mass concentration of 5% for mechanical stirring, and acid etch to obtain a slurry, and after acid etching Solid-liquid separation of the slurry, drying the separated powder to obtain roughened ceramic beads;

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Abstract

The invention discloses a reflective thermal-insulation coating used for an external wall, and relates to the technical field of coatings. The technical solution key point is as follows: the reflective thermal-insulation coating used for the external wall comprises the following components, in parts by weight: 150-200 parts of water, 6-12 parts of a dispersant, 10-20 parts of an auxiliary agent, 10-15 parts of ethylene glycol, 200-250 parts of titanium dioxide, 50-100 parts of heavy calcium carbonate, 30-50 parts of wollastonite powder, 300-400 parts of a styrene-acrylic emulsion, 20-30 partsof modified microbeads, and 1-2 parts of a pH regulating agent, wherein each modified microbead comprises a ceramic microbead and a polyurethane layer wrapping the surface of the ceramic microbead. The coating provided by the invention has the advantages of good dispersibility and uniform reflection and heat insulation.

Description

technical field [0001] The invention relates to the technical field of coatings, more specifically, it relates to a reflective heat-insulating coating for exterior walls. Background technique [0002] my country's building energy consumption accounts for about 30% to 40% of the total energy consumption, and building energy conservation is gradually on the agenda. When the coating layer with good heat insulation effect is used as the exterior finish of the building, it can greatly reduce the internal and external energy exchange of the building, thereby playing the role of heat insulation. [0003] In the Chinese invention patent with the notification number CN102898905B, a reflective heat-insulating coating is disclosed, which includes the following components in weight percentage: fluorocarbon resin 40-60%, fumed silica 0.2-1.5%, additives 8-16% %, pigment 15-30%, hollow glass microspheres 6-20%, solvent 5-15%. [0004] However, adding hollow glass microspheres to the for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D7/61C09D5/33C09D7/62
CPCC08K2003/2241C08K2003/265C09D5/004C09D125/14C09D7/61C09D7/62C09D7/70C08K13/06C08K9/10C08K7/18C08K7/10C08K3/22C08K3/26C08K3/34
Inventor 周航帆
Owner 浙江泰基涂料有限公司
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