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Method for preparing novel straw stalk fiber boards

A technology of rice straw and preparation method, which is applied to the pretreatment of molding materials, flat products, manufacturing tools, etc., which can solve the problems of insufficient environmental protection performance, incomplete sterilization performance, and weak water resistance, etc., and achieve the goal of solving straw Serious waste of resources, light weight, and simple manufacturing process

Inactive Publication Date: 2010-10-13
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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: rice straw powder 46%, corn straw 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 100-120 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 20°C-30°C Between ℃, control the temperature of the softened substance to be between 35% and 45%, and the time to control the temperature of the softened substance is 130 minutes, and then add 40% to 50% of water (the best is 45%) to achieve natural Fermentation and sterilization treatment, after 40 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 ...

Embodiment 2

[0011] Embodiment 2: rice straw powder 54%, corn straw 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 100-120 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 20°C-30°C Between ℃, control the temperature of the softened substance to be between 35% and 45%, and the time to control the temperature of the softened substance is 130 minutes, and then add 40% to 50% of water (the best is 45%) to achieve natural Fermentation and sterilization treatment, after 40 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 mo...

Embodiment 3

[0014] Embodiment 3: rice straw powder 50%, corn straw 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 100-120 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 20°C-30°C Between ℃, control the temperature of the softened substance to be between 35% and 45%, control the temperature of the softened substance for 130 minutes, and then add 40% to 50% of water (the best is 45%) to achieve natural Fermentation and sterilization treatment, after 40 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 be between...

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Abstract

The invention relates to a method for preparing novel straw stalk fiber boards. The straw stalk fiber board is prepared from the following components in percentage by weight: 46 to 54 percent of straw stalk powder, 10 to 13 percent of maize straw powder, 5 to 10 percent of talcpowder, 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 organic fiber materials such as the straw stalks and the like; stirring and uniformly mixing the organic fiber powder, the maize straw powder, the talcpowder and the magnesium oxide; adding the additive (1) and the additive (2) into the organic fiber powder, the maize straw powder, the talcpowder and the magnesium oxide, adding water into the mixture, and uniformly stirring and mixing the mixture; loading the mixed materials into a mold under the conditions of mediate temperature and humidifying temperature, cold pressing and molding the materials, and removing a mold; trimming the demolded semi-finished products as required in product specification; and loading the demolded and trimmed semi-finished products into a pressure maintaining and curing mold for curing, and warehousing finished products.

Description

technical field [0001] The invention relates to a preparation method of a rice straw fiber board, in particular to a preparation method of a novel rice straw fiber board. 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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IPC IPC(8): B27N3/04B27N1/00B27N3/08B27N3/18
Inventor 王海燕
Owner 王海燕
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