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Fibrous gypsum ecological wood material and preparation method thereof

A fiber gypsum, ecological technology, applied in the field of preparation of fiber gypsum ecological wood and production methods, can solve the problems of known patents and technical microstructure, hydration mechanism and molding methods, etc., to avoid high temperature thermal mismatch and save natural resources , low-cost effect

Active Publication Date: 2012-06-20
湖北格林森绿色环保材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known patents and technologies are deficient in essential aspects such as microstructure, hydration mechanism, and molding methods

Method used

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  • Fibrous gypsum ecological wood material and preparation method thereof
  • Fibrous gypsum ecological wood material and preparation method thereof
  • Fibrous gypsum ecological wood material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Composition of weight formula

[0027] 1) Calcium sulfate hemihydrate: 80 parts of β-type desulfurized hemihydrate gypsum, 20 parts of α-desulfurized hemihydrate gypsum;

[0028] 2) Plant fiber: 20 parts of bagasse;

[0029] 3) Chemical additives: 1.0 parts of water-soluble dispersible powder, 1.0 parts of waterproof silicon powder, 0.05 parts of sodium sulfoaluminate, and 0.03 parts of potassium citrate;

[0030] 4) Clear water: 18.75 parts.

[0031] 2. Production and preparation process:

[0032] (1) Raw material pretreatment: Bagasse is crushed into debris or short filaments with a length of 5-12 mm, a width of 0.5-5 mm, and a thickness of 0.1-5 mm, directly soaked and cooked in aqueous solution of sodium silicate and lime for 2 hours, and then centrifuged Dehydrate to a moisture content of 20-25%.

[0033] (2) Metering and stirring: 80 parts of β-type desulfurized hemihydrate gypsum, 20 parts of α-desulfurized hemihydrate gypsum, 20 parts of bagasse, and 2.0...

Embodiment 2

[0039] 1. Composition of weight formula

[0040] 1) Calcium sulfate hemihydrate: 100 parts of β-type desulfurized hemihydrate gypsum;

[0041] 2) Plant fiber: 20 parts of bagasse;

[0042] 3) Chemical additives: 1.0 parts of water-soluble dispersible powder, 1.0 parts of waterproof silicon powder, 0.08 parts of sodium sulfoaluminate, and 0.05 parts of potassium citrate;

[0043] 4) Clear water: 20 parts.

[0044] 2. Production and preparation process:

[0045] (1) Raw material pretreatment: Bagasse is crushed into debris or short filaments with a length of 5-12 mm, a width of 0.5-5 mm, and a thickness of 0.1-5 mm, directly soaked and cooked in aqueous solution of sodium silicate and lime for 2 hours, and then centrifuged Dehydrate to a moisture content of 20-25%.

[0046] (2) Metering and stirring: 100 parts of β-type desulfurized hemihydrate gypsum, 20 parts of bagasse, and 2.13 parts of chemical additives are respectively accurately measured and mixed in the mixer to form...

Embodiment 3

[0052] 1. Composition of weight formula

[0053] 1) Calcium sulfate hemihydrate: 100 parts of α-type desulfurized hemihydrate gypsum;

[0054] 2) Plant fiber: 12 parts of bagasse, 8 parts of sawdust;

[0055] 3) Chemical additives: 0.8 parts of water-soluble dispersible powder, 0.8 parts of waterproof silicon powder, 0.05 parts of sodium sulfoaluminate, and 0.03 parts of potassium citrate;

[0056] 4) Clear water: 19.17 parts.

[0057] 2. Production and preparation process:

[0058] (1) Raw material pretreatment: Bagasse is crushed into chips or short filaments with a length of 5-12mm, a width of 0.5-5mm, and a thickness of 0.1-5mm. The sawdust is used directly. After the two are measured according to the ratio, the silicon The aqueous solution of sodium bicarbonate and lime is soaked and boiled for 2 hours, then centrifuged and dehydrated to a moisture content of 20-25%.

[0059] (2) Metering and stirring: 100 parts of α-type desulfurized hemihydrate gypsum, 12 parts of ...

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Abstract

The invention relates to a fibrous gypsum ecological wood material and a preparation method thereof. The material is characterized in that the material is prepared from raw materials of calcium sulfate hemihydrate, dispersible plant fiber, a chemical auxiliary agent, and clear water with a weight ratio of 100:6.0-20.0:2-3.6:18.63-20. The clear water is reaction water required by calcium sulfate hemihydrate hydration. The plant fiber is processed through inorganic salt and alkaline solution steaming and impregnation, such that the surface of the plant fiber is deactivated, and the groups of the fiber are disintegrated. The material does not adopt cement, resin or plastic as a bonding agent, such that inherent plasticity and environment-protection functionality of the gypsum-based plant fiber material are sufficiently preserved. No high-temperature hot-melting harsh technology is adopted. No toxic substance exists or is released. High-temperature thermal mismatch of plant fibers is avoided. The material can be subject to continuous rolling shaping, such that a solid-core sheet material can be obtained. The solid-core sheet material has sawing, nailing, and planning-feeling textures.The material is advantaged in low cost and environment friendliness. With the material, natural resource can be saved.

Description

technical field [0001] The invention relates to a building material, in particular to a fiber gypsum ecological wood and the preparation technology of the production method. Background technique [0002] my country is a country that is relatively short of timber resources in the world. According to the latest national statistics, the per capita forest area in my country is only 21.3% of the world's average level, and the per capita forest stock volume is only one-eighth of the world's average level. According to other data, my country's per capita timber consumption is 0.22m3, the world's average is 0.65m3, and the average in developed countries is 1.16m3. In 2010, the timber supply gap will reach 60 million m3. Facing the severe situation and the adjustment of my country's forestry policy, with the implementation of the national natural forest protection project, the situation of insufficient timber supply will continue, and it is imperative to make full use of substitute w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
Inventor 韦华童军戴一军
Owner 湖北格林森绿色环保材料股份有限公司
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