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Preparation method of magnesium oxide board

A technology of glass magnesium board and preparation steps, which is applied in the field of building decoration materials, can solve the problems of incomplete component reaction, easy moisture absorption, product deformation, etc., and achieve the effects of improving mechanical strength, avoiding deformation, and improving hardness

Active Publication Date: 2017-12-08
SHENZHEN HUAZHU HABITAT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the problem that the traditional glass magnesium board is prone to moisture absorption and halogen return during use due to the incomplete reaction of the components in the preparation process, and the product is deformed, a glass magnesium board is provided. Plate preparation method

Method used

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  • Preparation method of magnesium oxide board

Examples

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Effect test

example 1

[0021] In parts by weight, 60 parts of lightly burned powder, 300 parts of 8% hydrochloric acid by mass fraction, and 10 parts of polyethylene glycol were successively added to the reactor, and stirred at a constant temperature at a temperature of 45°C and a speed of 400r / min. After reacting for 2 hours, filter to obtain the filtrate; in parts by weight, add 20 parts of lightly burned powder, 20 parts of filtrate, and 4 parts of magnesium chloride hexahydrate in the mixer, and stir and mix for 30 minutes at a speed of 300 r / min. , to obtain a slurry; a layer of non-woven fabric is laid on the bottom of the mold, and a layer of glass fiber cloth is laid on the surface of the non-woven fabric, and then the slurry is poured into the mold and roll-formed to obtain a wet billet, and then on the surface of the wet billet Lay a layer of glass fiber cloth, and lay a layer of non-woven fabric on the surface of the glass fiber cloth, then dry it naturally for 3 days at room temperature, ...

example 2

[0023] In parts by weight, take 10 parts of rice husk, 10 parts of quicklime, and 20 parts of water successively, pour them into a glass jar, stir and mix with a glass rod for 15 minutes, seal the glass jar and let it stand for 15 days, filter to obtain a filter cake, It is the mixed wet material of rice husk and lime; in parts by weight, 20 parts of lightly burned powder, 20 parts of water, 20 parts of magnesium chloride hexahydrate, and 3 parts of mixed wet material of rice husk and lime are added successively in the mixer. Under the condition of 300r / min, stir and mix for 30 minutes to obtain the slurry; lay a layer of non-woven fabric on the bottom of the mold, and lay a layer of glass fiber cloth on the surface of the non-woven fabric, then pour the slurry into the mold, roll forming, The wet billet was obtained, and then a layer of glass fiber cloth was laid on the surface of the wet billet, and a layer of non-woven fabric was laid on the surface of the glass fiber cloth,...

example 3

[0025]In parts by weight, take 10 parts of rice husks, 10 parts of quicklime, and 20 parts of water in turn, pour them into a glass jar, stir and mix with a glass rod for 15 minutes, seal the glass jar and let stand for 15 days, filter to obtain a filter cake, That is, rice husk lime mixed wet material; in parts by weight, add 60 parts of light calcined powder, 300 parts by mass of 8% hydrochloric acid, 10 parts of polyethylene glycol in the reaction kettle in turn, at a temperature of 45 ℃, rotating speed Under the condition of 400r / min, after constant temperature stirring reaction for 2h, filter to obtain filtrate; in parts by weight, add 20 parts of light calcined powder, 20 parts of filtrate, 4 parts of magnesium chloride hexahydrate, 3 parts of rice into the mixer in turn Shell lime mixed with wet material, under the condition of rotating speed of 300r / min, stirring and mixing for 30min to obtain slurry; lay a layer of non-woven fabric at the bottom of the mold, and lay a ...

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Abstract

The invention discloses a preparation method of a magnesium oxide board, and belongs to the technical field of decoration materials of buildings. The preparation method comprises the following steps of uniformly stirring and mixing rice husk, quicklime and water, sealing and standing, and filtering, so as to obtain rice husk and quicklime mixed wet material; stirring light burning powder, hydrochloric acid and polyethylene glycol to react at constant temperature, filtering to obtain filtrate, and uniformly stirring and mixing with the light burning powder, magnesium chloride hexahydrate and the rice husk and quicklime mixed wet material, so as to obtain slurry; paving one layer of nonwoven cloth and one layer of magnesium oxide cloth at the bottom of a die, pouring the slurry into the die, forming, paving one layer of magnesium oxide cloth and one layer of nonwoven cloth, and drying, so as to obtain a blank of the magnesium oxide board; moving into a curing chamber to cure, fumigating by nitrogen carrying trimethylaluminum in the curing period, and discharging material after the curing is finished, so as to obtain the magnesium oxide board. The preparation method has the beneficial effects that the better property of resisting moisture absorbing and halogen reforming is realized; the bending strengths in dry and wet states are high; the weight increasing rate is low after moisture absorbing; the deformation of the magnesium oxide board in the use process is effectively avoided; the magnesium oxide board is suitable for being popularized and applied.

Description

technical field [0001] The invention relates to a method for preparing a glass magnesium board, which belongs to the field of building decoration materials. Background technique [0002] Glass magnesium plate (commonly known as magnesium oxide plate) is a magnesia cementitious material with stable performance made of magnesium oxide, magnesium chloride and water as a ternary system, configured and added with a modifier. It is also a medium-alkaline glass fiber mesh It is a new type of non-combustible decorative material compounded with lightweight materials as fillers for reinforcing materials. Material composition for the production of glass magnesium board: active high-purity magnesium oxide, high-quality magnesium chloride, alkali-resistant glass fiber cloth, extremely flexible plant fiber, non-combustible and light perlite, chemically stable lithopone, high-molecular polymer, high-performance modified sex agent. Glass magnesium board is a structure that can be made int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32
CPCC04B28/32C04B2111/00629C04B2201/50C04B18/248C04B22/064C04B22/066C04B22/122C04B24/28C04B22/12C04B40/02
Inventor 朱浩明方晓俊许蘅
Owner SHENZHEN HUAZHU HABITAT TECH CO LTD
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