Dolomite magnesium cement inner and outer wall fireproof decoration board and preparation method thereof

A manufacturing method and technology of magnesium cement are applied in the field of dolomite magnesium cement interior and exterior wall fireproof decorative panels and their manufacturing fields, which can solve the problems of high raw material cost and difficult promotion of magnesite fireproof decorative panels.

Active Publication Date: 2011-05-18
QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Magnesite fire-proof board decorative board is widely used in the field of building materials due to its good performance such as fire prevention, light weight, high strength, anti-corrosion, and easy construction. The production area

Method used

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  • Dolomite magnesium cement inner and outer wall fireproof decoration board and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0005] Embodiment 1. A dolomite magnesium cement interior wall fire-proof decorative panel and its manufacture method, get caustic dolomite powder 10kg, magnesium chloride 1.2kg, sawdust 1kg, fly ash 0.5kg, expanded perlite 0.5kg, water 4.4kg will magnesium chloride and water to make a solution, the solution and other materials are stirred evenly in a mixer to make a slurry, the second layer of glass fiber mesh is laid in the interior wall decorative panel mold, and the non-woven fabric is laid on the back, and the slurry is injected. Under the condition of 10°C, molded and cured for 18 hours, demoulded, and cured at 10°C and relative air humidity less than 80% after demoulding, it will be finished product after 28 days.

[0006] The main technical indicators of the finished product are as follows:

[0007] Flexural strength: 25MPa, impact strength: 5kj / m 2 , horizontal combustion S: 0, vertical combustion S: 0, bulk density: 1.60g / cm 3 , Shrinkage rate: 0.3%, water resistan...

Embodiment 2

[0008] Embodiment 2: A kind of dolomite magnesium cement exterior wall fireproof decorative board and its manufacture method, take caustic dolomite powder 10kg, magnesium chloride 4kg, straw 6kg, talcum powder 3kg, expanded vermiculite 3kg, water 12kg, prepare magnesium chloride and water into a solution, the solution and other materials are stirred evenly in a mixer to make a slurry, and the second layer of glass fiber mesh is laid in the mold of the exterior wall decorative panel, and the non-woven fabric is laid on the back, and the slurry is injected. After molded and cured for 24 hours, it is demoulded, and after demoulding, it is cured at 30°C and the relative air humidity is less than 80% for 28 days before it becomes a finished product.

[0009] Its main technical indicators are as follows:

[0010] Flexural strength: 15MPa, impact strength: 3.0kj / m 2 , horizontal combustion S: 0, vertical combustion S: 0, bulk density: 1.10g / cm 3 , Dry shrinkage rate: 0.4%, water re...

Embodiment 3

[0011] Embodiment 3: a kind of dolomite magnesium cement exterior wall fireproof decorative board and its manufacture method, get caustic dolomite powder 10kg, magnesium chloride 3kg, sawdust and straw (shell) mixture 3kg, slag powder 1.5kg, polystyrene 2kg, water 8kg ,, magnesium chloride and water are prepared into a solution, and the solution and other materials are stirred evenly in a mixer to make a slurry. The second layer of glass fiber mesh is laid in the mold of the exterior wall decorative panel, and the back is laid with non-woven fabric. The slurry is molded and cured at 20°C for 20 hours and then released from the mold. After demoulding, it is cured at 25°C and the relative air humidity is less than 80% for 28 days before it becomes a finished product.

[0012] Its main technical indicators are as follows:

[0013] Flexural strength: 20MPa, impact strength: 4.8kj / m 2 , horizontal combustion S: 0, vertical combustion S: 0, bulk density: 1.40g / cm 3 , Shrinkage rat...

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Abstract

The invention relates to a dolomite magnesium cement inner and outer wall fireproof decoration board and a preparation method thereof, belonging to the chemical building material field. The decoration board contains caustic dolomite powder, magnesium chloride, light filler, inert filler, water and thermal insulation material, wherein the weight ratio of caustic dolomite powder to magnesium chloride to light filler to inert filler to water to thermal insulation material is 1.00:(0.12-0.40):(0.10-0.60):(0.05-0.30):(0.44-1.20):(0.05-0.30) and a defined amount of reinforced material is added. The preparation method comprises the following steps: mixing slurry, shaping and curing, and maintaining. The building inner and outer wall fireproof decoration board prepared by the method in the invention has the following advantages: the decoration board is fireproof, heat-insulated, corrosion-resistant, shockproof, environmentally friendly and energy-saving and has high strength, good water resistance, easy construction method, simple production technology, low energy consumption and the like. The decoration board is an updated product which can replace various boards such as plywoods, density boards, shaving boards and gypsum plaster boards and the like, belongs to the green and environmentally friendly building material and can be widely used in the building industry.

Description

1. Technical field [0001] The invention relates to a dolomite magnesium cement inner and outer wall fireproof decorative board and a manufacturing method thereof, belonging to the field of chemical building materials. 2. Background technology [0002] Magnesite fire-proof board decorative board is widely used in the field of building materials due to its good performance such as fire prevention, light weight, high strength, anti-corrosion, and easy construction. The production areas are mainly concentrated in Liaoning, my country. Due to the geographical limitations of resources, the cost of raw materials for the production of magnesite fireproof board decorative boards is relatively high, and it is not easy to promote. 3. Contents of the invention [0003] The present invention is that dolomite ore (it is the ore that calcium carbonate and magnesium carbonate double salt are main components, molecular formula is CaMg(CO 3 ) 2 ) The caustic dolomite powder and magnesium c...

Claims

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Application Information

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IPC IPC(8): C04B28/30
Inventor 肖学英王永晏常成功张全有王继东王明英火焱都永生
Owner QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
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