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Novel method for preparing wheat straw fiber board material

A technology of wheat straw and preparation method, which is applied in the pretreatment of molding materials, manufacturing tools, flat products, etc., can solve the problems of insufficient environmental protection performance, incomplete sterilization performance, weak water resistance, etc., and can solve the problems of straw The effect of serious waste of resources, light weight and simple manufacturing process

Inactive Publication Date: 2010-10-20
王海燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reasons are: 1. The strength of the produced board is poor; 2. The flame retardant rate is low; 3. The acid and alkali resistance is poor; 4. The water resistance is not strong; 5. The sterilization performance is not thorough; 6. The environmental performance requirements cannot be met

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: wheat straw powder 46%, stone powder 13%, talcum powder 5%, magnesium oxide 35%, additive (1) 0.2%, additive (2) 0.8%, described percentage is percentage by weight.

[0009] Combine all the above materials together, put them into a mixer and mix them for 120-150 minutes, take them out after fully mixing, and put them into a temperature-controlled control pool. It is required to control the temperature of the temperature-controlled control pool at 25°C-35°C Between ℃, control the temperature of the softened substance to be between 45% and 55%, and the time to control the temperature of the softened substance is 160 minutes, and then add 40% to 50% of water (the best is 45%) to achieve natural Fermentation and sterilization treatment, after 60 hours of natural fermentation, take the mixed substance out of the control tank, put it into the program-controlled mold and pressurize, it is required to start controlling the temperature of the program-controlled mold...

Embodiment 2

[0011] Embodiment 2: wheat straw powder 54%, stone powder 10%, talcum powder 10%, magnesium oxide 25%, additive (1) 0.6%, additive (2) 0.4%, described percentage is weight percentage.

[0012] Combine all the above materials together, put them into a mixer and mix them for 120-150 minutes, take them out after fully mixing, and put them into a temperature-controlled control pool. It is required to control the temperature of the temperature-controlled control pool at 25°C-35°C Between ℃, control the temperature of the softened substance to be between 45% and 55%, and the time to control the temperature of the softened substance is 160 minutes, and then add 40% to 50% of water (the best is 45%) to achieve natural Fermentation and sterilization treatment, after 60 hours of natural fermentation, take the mixed substance out of the control tank, put it into the program-controlled mold and pressurize, it is required to start controlling the temperature of the program-controlled mold t...

Embodiment 3

[0014] Embodiment 3: wheat straw powder 50%, stone powder 12%, talcum powder 7%, magnesium oxide 30%, additive (1) 0.4%, additive (2) 0.6%, described percentage is weight percentage.

[0015] Combine all the above materials together, put them into a mixer and mix them for 120-150 minutes, take them out after fully mixing, and put them into a temperature-controlled control pool. It is required to control the temperature of the temperature-controlled control pool at 25°C-35°C Between ℃, control the temperature of the softened substance to be between 45% and 55%, and the time to control the temperature of the softened substance is 160 minutes, and then add 40% to 50% of water (the best is 45%) to achieve natural Fermentation and sterilization treatment, after 60 hours of natural fermentation, take the mixed substance out of the control tank, put it into the program-controlled mold and pressurize, it is required to start controlling the temperature of the program-controlled mold to...

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Abstract

The invention discloses a novel method for preparing a wheat straw fiber board material. The wheat straw fiber board material consists of the following components in percentage by weight: 46 to 54 percent of wheat straw powder, 10 to 13 percent of stone powder, 5 to 10 percent of talcum powder, 25 to 35 percent of magnesium oxide, 0.2 to 0.6 percent of additive (1) and 0.4 to 0.8 percent of additive (2). The method comprises the following steps of: crushing and pulverizing the organic fiber materials, such as the wheat straw powder and the like; uniformly stirring and mixing the organic fiber powder, the stone powder, the talcum powder and the magnesium oxide; adding the additives (1 and 2) into the mixture of the organic fiber powder, the stone powder, the talcum powder and the magnesium oxide, and adding water for uniform stirring and mixing; placing the mixture into a mould for cold-pressing molding under the conditions of a conditioning temperature and a humidifying temperature, and de-molding the mixture; performing deburring on the de-molded semi-finished product according to the specification requirements of the product; and placing the de-molded and deburred semi-finished product into a pressurizing maintenance mould for maintenance and then putting the finished product in storage.

Description

technical field [0001] The invention relates to a preparation method of wheat straw fiber boards, in particular to a preparation method of novel wheat straw fiber boards. It belongs to the technical field of building components and decoration. Background technique [0002] At present, most of the raw materials of synthetic boards manufactured in China are wood materials such as miscellaneous wood, board scraps, sawdust, etc.; because the source of wood raw materials is restricted by environmental protection and other reasons, its supply is not only limited, And the price is high; therefore, some domestic enterprises and research institutions are constantly looking for artificial boards and other available alternative materials. Although some enterprises have made certain attempts to use crop straws to manufacture boards, the boards produced have some defects in terms of strength, flame retardancy, acid and alkali resistance, water resistance, and environmental protection. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10B27N3/04B27N1/00B27N1/02B27N3/08B27N3/18C04B18/24C04B18/12
CPCY02W30/91
Inventor 王海燕
Owner 王海燕
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