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Sandwich integrated external wall insulation board and preparation method thereof

An external wall insulation board, an integrated technology, applied in the direction of construction, building structure, covering/lining, etc., can solve the problems of debonding of insulation materials and cement boards, failure of insulation performance of insulation materials, and affecting the health of construction workers, etc., to achieve Multiple selection margins, excellent bending strength, and the effect of preventing contact with fire and oxygen

Active Publication Date: 2021-01-26
娄底市新越鼎建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will lead to: first, it is easy to contact with moisture in the environment and get wet, which will lead to the failure of the insulation performance of the insulation material, and the volume expansion will easily cause the debonding of the insulation material and the cement board, and the freezing and frosting in winter will also accelerate cracking and failure
Second, it will reduce the fire rating
Third, the exposed insulation materials such as rock wool will pollute the environment and affect the health of construction workers
Fourth, the transportation process is also easy to damage the insulation board

Method used

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  • Sandwich integrated external wall insulation board and preparation method thereof
  • Sandwich integrated external wall insulation board and preparation method thereof
  • Sandwich integrated external wall insulation board and preparation method thereof

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Embodiment 1

[0081] The preparation method of the insulation board of the present embodiment is as follows:

[0082] (1) According to mass percentage, 42.5R cement 34.5%, 0.01-5mm quartz sand 60.55%, Beijing microbeads 1%, polycarboxylate superplasticizer 1.5%, lithium carbonate 0.1%, sodium gluconate 0.05%, glass fiber (6mm, Taishan easily dispersible glass fiber) 0.3% and water-based polyacrylic acid emulsion 2.0% are mixed together with water, and the water-binder ratio is controlled to 0.25. At this time, the cement-sand ratio is also within the preset range. Stir evenly to obtain the initial automatic fluidity It is a cement slurry with a fluidity of 234mm.

[0083] (2) Build the mold. Place the mold frame (the inside size of the mold frame is 450mm*300mm*40mm) on the surface of the plate. Before injection molding, brush a layer of 10% nano silicon dioxide emulsion on the inner wall of the mold frame and the surface of the flat plate.

[0084] (3) Inject a layer of 6mm cement slurr...

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Abstract

The invention relates to a sandwich integrated external wall insulation board which comprises a cement shell and a heat insulation core material. The cement shell is a flat hexahedron, and a filling space of the heat insulation core material is formed in the hexahedron. The cement shell is formed by cement paste through injection molding and curing, and the cement paste comprises the following components, by mass: 20-60% of cement, 30-70% of quartz sand, 0.1-10% of microbeads, 0.01-2% of a water reducing agent, 0.01-2% of lithium carbonate, 0.01-2% of sodium gluconate, 0.01-2% of glass fibersand 0.1-6% of a low-temperature water-based emulsion; water is added into the components to be mixed to obtain cement paste, the water-binder ratio is 0.25-0.5, and the cement-sand ratio is 0.25-0.7.The shell adopts an innovative cement paste formula, and enough breaking strength and compressive strength can be provided under the condition of extremely small thickness after curing. According to the invention, the insulation board has very high breaking strength and compressive strength, and the insulation board with lighter specific gravity and better thermal insulation performance can be obtained; and the shell blocks environmental factors, plays a role in protecting the thermal insulation material, can prolong the service life of the thermal insulation material and provides fireproof and flame-retardant effects.

Description

technical field [0001] The invention relates to the technical field of inorganic building boards, in particular to a sandwich integrated exterior wall insulation board and a preparation method thereof. Background technique [0002] The external thermal insulation system of the building exterior wall is a non-load-bearing thermal insulation structural assembly composed of thermal insulation boards, protective layers, and fixing materials and suitable for installing the external surface of the external wall. At present, the insulation boards used in the market are divided into inorganic insulation boards and organic insulation boards. Organic insulation boards have better insulation performance, light specific gravity, and are easy to manufacture. However, compared with inorganic insulation boards, organic insulation boards have poor stability and are flame retardant. Poor performance, not resistant to aging and easy to deform; inorganic insulation board contains perlite, diat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E04F13/075
CPCC04B28/04E04F13/0875C04B2201/50C04B2111/28C04B22/10C04B14/06C04B14/42C04B14/24C04B24/06C04B2103/302C04B24/24
Inventor 欧阳忠贞彭秧锡陈占军阳湘琳卢玉厚杨威陈金鹰彭嘉妮颜震宇
Owner 娄底市新越鼎建材科技有限公司
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