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Magnesium oxysulfate cement plate and preparation method thereof

A technology of magnesium oxysulfide cement board and cement board, which is applied in the field of building materials, can solve the problems of reducing the service life of products, stagnation of glass magnesium board, and returning to halogen, and achieves the effects of avoiding halogen returning, good flexural strength and reasonable formula.

Inactive Publication Date: 2016-07-13
ZHUO DA NEW MATERIAL TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since magnesium chloride is used as a blending agent, after the plate is formed, problems such as back halogen and frosting have not been resolved for a long time.
In addition, the installation of glass magnesium boards mostly relies on light steel keels. If the surface of the light steel keel is not coated or the coating is not tight, it will also be rusted due to the principle of the original battery, which will greatly reduce the service life of the product.
This has brought a certain stagnation to the development of glass magnesium boards, and an innovative research and development is urgently needed to overcome this technical problem

Method used

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  • Magnesium oxysulfate cement plate and preparation method thereof
  • Magnesium oxysulfate cement plate and preparation method thereof

Examples

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Embodiment 1

[0026] A magnesium oxysulfide cement board, comprising the following components by weight: 60 parts of magnesium oxide, 30 parts of magnesium sulfate solution, 8 parts of coarse wood powder, 6 parts of fine wood powder, 3 parts of reinforcing materials and 0.2 parts of modifier ; The purity of the magnesium oxide is 85%, and its activity is 62%; the concentration of the magnesium chloride solution is 22°Bé; the fineness of the coarse wood powder is 10 orders, and the fineness of the fine wood powder 40 mesh; the reinforcing material is fly ash; the modifier comprises the following components by weight: 3 parts of sodium butylnaphthalene sulfonate, 10 parts of ammonium carbonate, 5 parts of magnesium hydroxide, chlorine 5 parts of ammonium chloride and 1 part of sodium carboxymethylcellulose.

[0027] The preparation method of described magnesium oxysulfate cement board, comprises the following steps:

[0028] (1) Preparation of magnesium sulfate solution: start pre-preparatio...

Embodiment 2

[0034] A magnesium oxysulfate cement board, comprising the following components by weight: 75 parts of magnesium oxide, 40 parts of magnesium sulfate solution, 10 parts of coarse wood powder, 8 parts of fine wood powder, 6 parts of reinforcing material and 0.5 part of modifier ; The purity of the magnesium oxide is 95%, and its activity is 65%; the concentration of the magnesium chloride solution is 28°Bé; the fineness of the coarse wood powder is 20 orders, and the fineness of the fine wood powder 60 mesh; the reinforcing material is silica fume; the modifying agent comprises the following components by weight: 5 parts of sodium butylnaphthalene sulfonate, 15 parts of ammonium carbonate, 15 parts of magnesium hydroxide, chloride 8 parts of ammonium and 3 parts of sodium carboxymethylcellulose.

[0035] The preparation method of described magnesium oxysulfate cement board, comprises the following steps:

[0036] (1) Preparation of magnesium sulfate solution: start pre-prepara...

Embodiment 3

[0042] A magnesium oxysulfate cement board, comprising the following components by weight: 70 parts of magnesium oxide, 35 parts of magnesium sulfate solution, 9 parts of coarse wood powder, 7 parts of fine wood powder, 5 parts of reinforcing material and 0.4 part of modifier The purity of the magnesium oxide is 90%, and its activity is 63%; the concentration of the magnesium chloride solution is 25°Bé; the fineness of the coarse wood powder is 15 orders, and the fineness of the fine wood powder 50 mesh; the reinforcing material is slag; the modifier comprises the following components by weight: 4 parts of sodium butylnaphthalene sulfonate, 12 parts of ammonium carbonate, 10 parts of magnesium hydroxide, ammonium chloride 6 parts and 2 parts of sodium carboxymethylcellulose.

[0043] The preparation method of described magnesium oxysulfate cement board, comprises the following steps:

[0044] (1) Preparation of magnesium sulfate solution: start pre-preparation 2 days before u...

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Abstract

The invention belongs to the technical field of building materials and particularly relates to a magnesium oxysulfate cement plate and a preparation method thereof.The magnesium oxysulfate cement plate is characterized by comprising the following components according to parts by weight: 60-75 parts of magnesium oxide, 30-40 parts of magnesium sulfate solution, 8-10 parts of coarse wood flour, 6-8 parts of fine wood flour, 3-6 parts of reinforcing material, and 0.2-0.5 part of a modifier.The magnesium oxysulfate cement plate has a reasonable formula, is convenient to use, good in breaking strength and good in water resistance; the magnesium oxysulfate cement plate of the invention is free of scumming during usage and never deforms during long-term usage.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a magnesium oxysulfide cement board and a preparation method thereof. Background technique [0002] Glass magnesium board has been widely used in the construction industry. With the development of the market and the increase of construction volume, different consumer groups have put forward different requirements and technical requirements for manufacturers. In the prior art, the manufacturing method of the glass magnesium board is usually the method of magnesium oxide + magnesium chloride for production, and then modified by a modifier. However, since magnesium chloride is used as a blending agent, after the plate is formed, problems such as brine return and frosting have not been solved for a long time. In addition, the installation of glass magnesium panels mostly relies on light steel keels. If the surface of the light steel keel is not coated or the c...

Claims

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Application Information

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IPC IPC(8): C04B28/30C04B18/08C04B18/26C04B22/06C04B22/10C04B22/12C04B24/16C04B24/38C04B18/14
CPCC04B28/30C04B18/26C04B18/08C04B24/16C04B22/10C04B22/066C04B22/124C04B24/383C04B18/146C04B18/141Y02W30/91
Inventor 杨卓舒李绍东
Owner ZHUO DA NEW MATERIAL TECH GRP
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