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Insulating board and production method thereof

A technology of sheet and mica powder, applied in the preparation of the insulating sheet and the field of insulating sheet, can solve the problems of electrostatic protection, heavy sheet weight and inability to bear weight, etc., to avoid the risk of burning by open fire, the preparation method is simple, and the weight is light. Effect

Inactive Publication Date: 2017-11-21
山西大美至善石膏设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many insulating boards sold in the market, including PVC boards, PC boards, cast-in-place boards, and external insulation wall boards. The existing cement blocks, gypsum boards, and cast-in-place boards all have the characteristics of strong fire resistance, but the weight of the boards in the cement blocks is large, and there are shortcomings in the protection of static electricity; the external insulation wallboard is light in weight , but not load-bearing; PVC board, PC board weight is small, but the price is a bit high
To sum up, the existing building boards cannot meet the requirements of light weight, fire prevention, low price and insulation at the same time.

Method used

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preparation example Construction

[0023] The preparation method of the above-mentioned insulating board comprises the following steps:

[0024] Mix the gypsum powder, gypsum fiber, fly ash and mica powder in the above mass ratio to obtain a mixture, then stir the mixture with water dissolved in methyl cellulose to obtain a dry mixture, and then press and shape it in the mold , that is, an insulating gypsum mica sheet with a predetermined thickness is obtained.

[0025] Among them, methyl cellulose has wettability, dispersibility, adhesiveness, thickening, emulsification, water retention and film-forming properties, with a bulk density of 0.35-0.55g / cm3 and a viscosity of about 18,000-200,000.

[0026] The thickness of the insulating gypsum mica sheet can usually be set according to the actual needs of the mold size, and then get different thickness of the insulating gypsum mica sheet.

[0027] The technical proposal is especially suitable for insulating floor tiles used in elevator shafts and cable shafts.

Embodiment 1

[0030] Dissolve 0.1 part of methyl cellulose in hot water at 90 degrees, and after it is completely dissolved, fully mix it with 90 parts of high-strength gypsum powder, 1 part of gypsum short fiber, 25 parts of mica powder, and 1 part of fly ash to obtain uniform mixture, then add the mixture into the aqueous solution of methyl cellulose, and continue to stir for 10 minutes to obtain a sandwich material, and then pour it into a mold, pressurize, and shape to obtain a finished product.

Embodiment 2

[0032] Dissolve 1.8 parts of methyl cellulose in hot water at 90 degrees. After all of it is dissolved, fully mix it with 20 parts of high-strength gypsum powder, 8 parts of short gypsum fibers, 1 part of mica powder, and 3 parts of fly ash to obtain uniform mixture, then add the mixture into the aqueous solution of methyl cellulose, and continue to stir for 10 minutes to obtain a sandwich material, and then pour it into a mold, pressurize, and shape to obtain a finished product.

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Abstract

The invention discloses an insulating board and a production method thereof. The insulating board is prepared from high-strength gypsum powder, gypsum short fibers, mica powder, fly ash and methyl cellulose. The preparation method includes: evenly mixing the gypsum powder and the gypsum short fibers with the fly ash and the mica powder to obtain a mixture, mixing the mixture with water dissolved with the methyl cellulose to obtain a dry mixed material, and performing extrusion forming in a die to obtain the insulating gypsum-mica board with a preset thickness. Compared with the prior art, the insulating board and the production method thereof have the advantages that the production method is simple and easy to operate; the produced insulating board is widely applicable, especially applicable to the floors of a high-rise elevator shaft, an electric cable well and a machine room, lightweight, thermal-insulation, fireproof, insulating and capable of thoroughly avoiding the risk of flaming combustion.

Description

technical field [0001] The invention relates to a board in the construction field, in particular to an insulating board, and also relates to a preparation method of the insulating board. Background technique [0002] At present, there are many insulating boards sold in the market, including PVC boards, PC boards, cast-in-place boards, and external insulation wall boards. The existing cement blocks, gypsum boards, and cast-in-place boards all have the characteristics of strong fire resistance, but the weight of the boards in the cement blocks is large, and there are shortcomings in the protection of static electricity; the external insulation wallboard is light in weight , but not load-bearing; PVC board, PC board weight is small, but the price is a bit high. To sum up, the existing building boards still cannot meet the requirements of light weight, fire prevention, low price and insulation at the same time. [0003] Gypsum board is a material made of building gypsum as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B111/28C04B111/92
CPCC04B28/14C04B2111/28C04B2111/92C04B2201/32C04B2201/50C04B14/38C04B14/20C04B18/08C04B24/383
Inventor 孙红芳殷越殷彤
Owner 山西大美至善石膏设备股份有限公司
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