Wood magnesium board and preparation method thereof

A wood magnesium and wood powder technology, applied in the field of materials, can solve the problems of board influence, long production cycle, increased production cost, etc., and achieve the effects of improving overall strength, reducing production cost, and weak surface strength

Pending Publication Date: 2022-01-21
ANHUI HANHUA BUILDING MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is always centered on glass fiber, the structure of the board is a sandwich structure, and the finished board is made by coating glass fiber with slurry. The overall density and quality of the board cannot be guaranteed to be inconsistent, and the overall density of the board is not uniform. For The board has an impact in the later use
Moreover, the combination of traditional glass magnesium boards in the production and preparation process still has the problem that the production cycle is too long, and there are high requirements for paving, demoulding, and maintenance, which eventually leads to increased production costs.

Method used

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  • Wood magnesium board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of preparation method of wood magnesium board, comprises the following steps:

[0042] Step 1. Precise measurement of raw materials; weigh 40kg of magnesium oxide, 40kg of 29.5-degree magnesium sulfate solution, 30kg of wood powder, 200g of aluminum oxide, 3kg of magnesium silicate, 300g of oxalic acid, 500g of waterproofing agent, and 2kg of modifier, and pass through the tank The negative pressure air delivery metering system can weigh the raw materials, which can control the measurement accuracy error to one thousandth, and can be weighed through the negative pressure air delivery metering system of the tank warehouse, and the error control is more accurate;

[0043] Step 2, dry mixing and stirring; using a column type high-speed mixer with a blade speed of 1000 revolutions per minute, the above raw materials are mixed evenly at high speed under the dry process;

[0044] Step 3, dispersing; using a column type low-speed mixer, the blade speed is 10 revolutions...

Embodiment 2

[0052] A kind of preparation method of wood magnesium board, comprises the following steps:

[0053] Step 1. Accurate measurement of raw materials; weigh 40kg of magnesium oxide, 40kg of magnesium sulfate solution at 29.5 degrees, 30kg of wood powder, 200g of aluminum oxide, 3kg of magnesium silicate, 300g of oxalic acid, 500g of water repellent, and 2kg of common market modifiers. The negative pressure air delivery metering system of the tank warehouse can weigh raw materials, which can control the measurement accuracy error within one thousandth, and can be weighed by the negative pressure air delivery metering system of the tank warehouse, and the error control is more accurate;

[0054] Step 2, dry mixing and stirring; using a column-type high-speed mixer with a blade speed of 1100 revolutions per minute, the above-mentioned raw materials are mixed evenly at high speed under the dry process;

[0055] Step 3, dispersing; using a column-type low-speed mixer, the blade speed ...

Embodiment 3

[0063] A kind of preparation method of wood magnesium board, comprises the following steps:

[0064] Step 1. Accurate measurement of raw materials; weigh 40kg of magnesium oxide, 40kg of magnesium sulfate solution at 29.5 degrees, 30kg of wood powder, 200g of aluminum oxide, 3kg of magnesium silicate, 300g of oxalic acid, 500g of water repellent, and 2kg of common market modifiers. The negative pressure air delivery metering system of the tank warehouse can weigh raw materials, which can control the measurement accuracy error within one thousandth, and can be weighed by the negative pressure air delivery metering system of the tank warehouse, and the error control is more accurate;

[0065] Step 2, dry mixing and stirring; using a column type high-speed mixer with a blade speed of 1000 revolutions per minute, the above raw materials are mixed evenly at high speed under the dry process;

[0066] Step 3, dispersing; using a column-type low-speed mixer, the blade speed is 15 revo...

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Abstract

The invention relates to the technical field of materials, and particularly discloses a wood magnesium board and a preparation method thereof. The wood magnesium board is prepared from the following raw materials in percentage by weight: 20-40% of magnesium oxide, 10-20% of a magnesium sulfate solution, 20-30% of wood flour, 0.2-0.3% of metal oxide, 3-4% of non-metal oxide, 1-2% of inorganic salt, 0.5-1% of acid, 0.1-0.5% of a waterproof agent and 1-2% of a modifier. The invention also discloses a preparation method of the wood magnesium board. The preparation method comprises the following steps: accurately metering raw materials; and conducting mixing, stirring, dispersing, metering and paving under a dry process, conducting pre-pressing, carrying out secondary hot press molding, conducting demolding, cutting and sanding in a short time, drying frame pieces, finally finely cutting and sanding a finished product, and packaging and delivering a finished product. The production cost is effectively reduced, the production period is shortened, and the plate is high in strength, good in toughness, environment-friendly and non-toxic.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a wood magnesium board and a preparation method thereof. Background technique [0002] In the process of modern decoration, the use of panels has been very extensive. Various wall panels and floors can be applied to different scenarios through combination and assembly. People's requirements for boards are getting higher and higher. The selection of base materials in the existing boards still takes a large proportion of the application of glass magnesium boards, but the formula of glass magnesium boards involves a variety of organic solvents, such as Benzene emulsion has neurotoxicity and irritation. Non-toxic organic solvents will also cause harm to the body of workers in the actual manufacturing process. The adhesive glue emulsion used is styrene-butadiene emulsion, carboxylated styrene-butadiene emulsion and acrylic acid One or more of the emulsions are also organic substanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32C04B14/30C04B24/42B28B3/02B28B11/24B28B11/12B28B11/08B28B13/02
CPCC04B28/32C04B14/303C04B40/0039B28B3/02B28B3/025B28B11/243B28B11/12B28B11/0845B28B13/02C04B2103/65C04B2201/50C04B18/26C04B14/042C04B24/06C04B2103/0068C04B24/42C04B24/00C04B22/143
Inventor 李小林洪良飞
Owner ANHUI HANHUA BUILDING MATERIALS TECH
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