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Straw artificial board

A technology of wood-based panels and straw, which is applied in the direction of manufacturing tools, pretreatment of molding materials, flat products, etc., can solve the problems of poor mechanical properties and waterproof performance of straw-based panels, and achieve the effect of improving mechanical properties and waterproof performance

Inactive Publication Date: 2018-06-22
黄旭东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: Aiming at the problems of poor mechanical properties and waterproof performance of traditional straw-based panels, a straw-based panel is provided

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

example 1

[0022]Move the wheat straw into the steam-explosion tank, and inject water vapor into the tank until the pressure inside the tank is 3.8 MPa. After the pressure-holding treatment for 10 minutes, open the valve at the bottom of the steam-explosion tank and release the pressure to obtain the steam-explosion wheat straw. Mix with silane coupling agent at a mass ratio of 1:5, mix and stir for 80 minutes at a temperature of 55°C and a rotation speed of 350r / min, filter to obtain a filter cake, move the filter cake into a drying oven, and store it at a temperature of 90 After drying at ℃ for 30 minutes, pretreated wheat straw was obtained; rice straw was mixed with 0.12% calcium hydroxide solution at a mass ratio of 1:8, soaked at a constant temperature of 40℃ for 8 hours, and then filtered , to obtain filter residue, after drying the filter residue at a temperature of 85°C for 30 minutes, the pretreated rice straw was obtained. After 2 days of constant temperature fermentation unde...

example 2

[0024] Move the wheat straw into the steam-explosion tank, and inject water vapor into the tank until the pressure inside the tank is 3.8 MPa. After the pressure-holding treatment for 10 minutes, open the valve at the bottom of the steam-explosion tank and release the pressure to obtain the steam-explosion wheat straw. Mix with silane coupling agent at a mass ratio of 1:5, mix and stir for 80 minutes at a temperature of 55°C and a rotation speed of 350r / min, filter to obtain a filter cake, move the filter cake into a drying oven, and store it at a temperature of 90 After drying at ℃ for 30 minutes, pretreated wheat straw was obtained; rice straw was mixed with 0.12% calcium hydroxide solution at a mass ratio of 1:8, soaked at a constant temperature of 40℃ for 8 hours, and then filtered , to obtain filter residue, after drying the filter residue at a temperature of 85°C for 30 minutes, the pretreated rice straw was obtained. After 2 days of constant temperature fermentation und...

example 3

[0026] Move the wheat straw into the steam-explosion tank, and inject water vapor into the tank until the pressure inside the tank is 3.8 MPa. After the pressure-holding treatment for 10 minutes, open the valve at the bottom of the steam-explosion tank and release the pressure to obtain the steam-explosion wheat straw. Mix with silane coupling agent at a mass ratio of 1:5, mix and stir for 80 minutes at a temperature of 55°C and a rotation speed of 350r / min, filter to obtain a filter cake, move the filter cake into a drying oven, and store it at a temperature of 90 After drying at ℃ for 30 minutes, pretreated wheat straw was obtained; rice straw was mixed with 0.12% calcium hydroxide solution at a mass ratio of 1:8, soaked at a constant temperature of 40℃ for 8 hours, and then filtered , to obtain filter residue, after drying the filter residue at a temperature of 85°C for 30 minutes, the pretreated rice straw was obtained. After 2 days of constant temperature fermentation und...

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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Abstract

The invention discloses a straw artificial board, and belongs to the technical field of building materials. A preparation method of the straw artificial board comprises the following steps: successively weighing the following components in parts by weight: 20-30 parts of pretreated wheat straws, 25-35 parts of activated rice straws, 5-8 parts of an additive and 15-20 parts of a modified adhesive;adding the pretreated wheat straws and the activated rice straws in a blender mixer; successively adding the additive and the modified adhesive in the blender mixer; stirring and mixing for 35-60 minutes under the conditions that the temperature is 55-65 DEG C and the rotating speed is 320-380 r / min to obtain a mixture; injecting the mixture into a mold, and carrying out compression moulding underthe conditions that the temperature is 180-220 DEG C, and the pressure is 2.8-4.0 MPa to obtain a blank board; and drying the blank board at a constant temperature for 45-90 minutes under the condition that the temperature is 75-85 DEG C to obtain the straw artificial board. The obtained straw artificial board has excellent mechanical property and water resistance.

Description

technical field [0001] The invention discloses a straw artificial board, which belongs to the technical field of building materials. Background technique [0002] Environment and development are two major themes in the world in the 21st century. Forest resources are in short supply and timber supply is tight. It is an arduous task to meet the timber needs of 22% of the world's population with less than 5% of the world's forest resources, and at the same time ensure the food security of 7% of the world's arable land. In order to protect the ecological environment and benefit future generations, natural forest protection projects have been launched, and logging bans have been implemented in many areas. However, the demand for timber in national economic construction and people's life continues to rise. There are four ways to solve this contradiction: vigorously develop artificial fast-growing forests; moderately expand timber imports; improve the level of wood processing th...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N1/02B27N3/00B27N3/08
Inventor 黄旭东徐珉张淼
Owner 黄旭东
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