Straw artificial board and preparation method thereof

A technology for wood-based panels and straws, which is applied in the field of aldehyde-free, non-toxic and fire-resistant straw-based wood-based panels and their preparation fields, can solve problems such as harm to health, and achieve the effects of cost reduction, high hardness and enhanced performance indicators.

Inactive Publication Date: 2017-11-21
SHENYANG AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a non-aldehyde, non-toxic, fire-resistant straw-based panel and its preparation method. Hazardous health problems; using the preparation method to produce straw-based panels can reduce the cost of straw-based panels and improve the strength of straw-based panels

Method used

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  • Straw artificial board and preparation method thereof
  • Straw artificial board and preparation method thereof

Examples

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Embodiment 1

[0039] A straw-based panel, the straw-based panel is prepared by a preparation method comprising the following steps:

[0040] (1), the preparation of inorganic gelling material: with the MgO of 30%, the MgSO of 40% 4 , 20% MgCO 3 , 1% active silicon, 6% Al 2 SiO 5 and 3% red clay were added to warm water at 50°C, and stirred evenly to obtain an inorganic gelling material;

[0041] (2), preparation of organic gelling material: bean gum and polyamide epichlorohydrin are mixed, add water, stir, obtain organic gelling material; The weight ratio of described bean gum and polyamide epichlorohydrin is 5:1;

[0042] (3), mix the inorganic gelling material obtained in step (1) and the organic gelling material obtained in step (2) according to a weight ratio of 1:1, and use a colloid mill to grind the mixture while adding deionized water, When the solid content in the mixture is 35%, and the mixture is sticky and paste-like, with a delicate hand feeling and no sticky feeling when ...

Embodiment 2

[0046] A straw-based panel, the straw-based panel is prepared by a preparation method comprising the following steps:

[0047] (1), the preparation of inorganic gelling material: with the MgO of 50%, the MgSO of 20% 4 , 15% MgCO 3 , 3% active silicon, 10% Al 2 SiO 5 and 2% red clay were added to warm water at 30°C, and stirred evenly to obtain an inorganic gelling material;

[0048] (2), preparation of organic gelling material: bean gum and polyamide epichlorohydrin are mixed, add water, stir, obtain organic gelling material; The weight ratio of described bean gum and polyamide epichlorohydrin is 10:1;

[0049] (3), mix the inorganic gelling material obtained in step (1) and the organic gelling material obtained in step (2) according to a weight ratio of 5:1, and use a colloid mill to grind the mixture while adding deionized water, When the solid content in the mixture is 40%, and the mixture is sticky and paste-like, with a delicate hand feeling and no sticky feeling whe...

Embodiment 3

[0053] A straw-based panel, the straw-based panel is prepared by a preparation method comprising the following steps:

[0054] (1), the preparation of inorganic gelling material: with the MgO of 50%, the MgSO of 30% 4 , 10% MgCO 3 , 2% active silicon, 7% Al 2 SiO 5 and 1% red clay were added to warm water at 40°C, and stirred evenly to obtain an inorganic gelling material;

[0055] (2), preparation of organic gelling material: bean gum and polyamide epichlorohydrin are mixed, add water, stir, obtain organic gelling material; The weight ratio of described bean gum and polyamide epichlorohydrin is 9:1;

[0056] (3), mix the inorganic gelling material obtained in step (1) and the organic gelling material obtained in step (2) according to a weight ratio of 2:1, and use a colloid mill to grind the mixture while adding deionized water, When the solid content in the mixture is 50%, and the mixture is sticky and paste-like, with a delicate hand feeling and no sticky feeling when ...

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Abstract

The invention provides a straw artificial board and a preparation method thereof. The straw artificial board is prepared by using aldehyde-free and poison-free adhesive, so that the problem of harming to the health due to use of formaldehyde-type adhesive is solved; meanwhile, compared with a technical scheme of using isocyanate, the cost is greatly reduced; and chloride ion molecular groups in polyamide epichlorohydrin are fully used for reinforcing the binding performance of an inorganic gel material, so that all performance indexes of the board are greatly improved. The straw artificial board prepared by the preparation method of the straw artificial board is high in hardness and excellent in thickness uniformity; the adhesive cost is reduced; meanwhile, the success rate of the straw artificial board is increased; and the yield and the efficiency are both greatly improved.

Description

technical field [0001] The invention relates to the technical field of wood-based panels, in particular to a non-aldehyde, non-toxic, fire-resistant straw wood-based panel and a preparation method thereof. Background technique [0002] my country's straw resources are abundant, and the waste is serious, and it has caused a series of problems such as environmental pollution. After the straw is pretreated, pressing it into a plate is one of the effective ways to rationally utilize straw resources. Straw raw materials come from a wide range of sources, and they are pressed into straw-based panels as building wall materials to produce energy-saving and environmentally friendly passive houses, so that the environmental and ecological problems caused by agricultural waste such as straw have been fundamentally resolved. The thermal insulation coefficient of straw wood-based panels is much higher than that of clay brick walls, while the heating heat consumption and heating cost are...

Claims

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Application Information

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IPC IPC(8): B27N1/02B27N3/00B27N3/02B27N3/10B27N3/20C09J1/00C09J189/00C09J11/08C09J11/04
CPCB27N3/002B27N1/0209B27N3/02B27N3/10B27N3/203C08K2003/222C08L2201/02C09J1/00C09J11/04C09J11/08C09J189/00C08L77/00C08K3/00C08K3/34C08K3/30C08K3/22C08K3/346
Inventor 刘德军董彬宫元娟高翔董仁杰牛高峰马世傲
Owner SHENYANG AGRI UNIV
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