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A method for improving the toughness of fast-growing poplar wood chips

A wood chip and toughness technology, which is applied in the field of improving the toughness of fast-growing thin poplar wood chips, can solve the problems of easy deformation, poor toughness, and difficult handling of products, and achieve the effect of increasing the scope of application, improving stability and toughness

Active Publication Date: 2020-09-11
安徽三和工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Poplar has the characteristics of fast growth, wide adaptability and easy processing. It has become a pillar industry in many areas. Basswood is a kind of cork. Many light furniture will use basswood as the furniture frame, which is wear-resistant and corrosion-resistant. , not easy to crack, easy to process, strong toughness, etc. Its hardness is moderate, the wood is mild, so it is not easy to crack, the wood grain is fine, easy to process, and strong toughness, but basswood is not easy to plant. First, my country's basswood basically relies on Russian basswood for maintenance. As a result, the production cost increases. The density of fast-growing poplar is equivalent to that of basswood, but its material properties are large, and the wood fiber has high toughness. When it is processed into thin slices with a thickness of less than 5mm, the surface wood wool is not easy to handle, and the product is easy to deform and has poor toughness. Unable to meet actual usage needs

Method used

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  • A method for improving the toughness of fast-growing poplar wood chips

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Effect test

Embodiment 1

[0019] A method for improving the toughness of fast-growing poplar wood chips, comprising the following content:

[0020] (1) Put the poplar to be treated into a sugar alcohol ethanol solution with a mass concentration of 30%, vacuumize to a negative pressure of 0.08MPa, keep it for 50 minutes, pressurize it to 0.7MPa, and keep the pressure for 2.5 hours. After completion, take it out and dry it The residual liquid on the surface is treated at a temperature of 70°C for 35 minutes to obtain a pretreated plate;

[0021] (2) Preparation of treatment agent, in parts by weight, including 14 parts of copper borate, 5.5 parts of chitosan, 20 parts of imide, 4 parts of calcium hydrogen phosphate, 2 parts of dill seed volatile oil, and a hydroxyl group with a mass concentration of 2%. 100 parts of carboxylic acid aqueous solution;

[0022] (3) Put the pretreated plate obtained in step (1) into the treatment agent, vacuumize to minus 0.08MPa, keep it for 25 minutes, take it out, and re...

Embodiment 2

[0033] A method for improving the toughness of fast-growing poplar wood chips, comprising the following content:

[0034] (1) Put the poplar to be treated into a sugar alcohol ethanol solution with a mass concentration of 25%, vacuumize to a negative pressure of 0.08MPa, keep it for 60 minutes, pressurize it to 0.65MPa, and keep the pressure for 2 hours. After completion, take it out and dry it The residual liquid on the surface is treated at a temperature of 70°C for 40 minutes to obtain a pretreated plate;

[0035] (2) Preparation of treatment agent, in parts by weight, including 12 parts of copper borate, 7 parts of chitosan, 22 parts of imide, 5 parts of calcium hydrogen phosphate, 1 part of dill seed volatile oil, and a hydroxyl group with a mass concentration of 2%. 100 parts of carboxylic acid aqueous solution;

[0036] (3) Put the pretreated plate obtained in step (1) in the treatment agent, vacuumize to minus 0.08MPa, keep it for 30 minutes, take it out, and refriger...

Embodiment 3

[0047] A method for improving the toughness of fast-growing poplar wood chips, comprising the following content:

[0048] (1) Put the poplar to be treated into a sugar alcohol ethanol solution with a mass concentration of 35%, evacuate to a negative pressure of 0.08MPa, keep it for 40 minutes, pressurize it to 0.75MPa, and keep the pressure for 3 hours. After completion, take it out and dry it The residual liquid on the surface is treated at a temperature of 70°C for 30 minutes to obtain a pretreated plate;

[0049] (2) Preparation of treatment agent, in parts by weight, including 16 parts of copper borate, 4 parts of chitosan, 18 parts of imide, 3 parts of calcium hydrogen phosphate, 3 parts of dill seed volatile oil, and hydroxyl group with a mass concentration of 2%. 100 parts of carboxylic acid aqueous solution;

[0050] (3) Place the pretreated plate obtained in step (1) in the treatment agent, vacuumize to minus 0.08MPa, keep it for 20 minutes, take it out, and refriger...

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Abstract

The invention belongs to the technical field of thin poplar sheet processing, and specifically relates to a method for improving the toughness of a thin fast growing poplar sheet. The method comprisesfollowing steps: processing a thin fast growing poplar sheet by an ethanol solution of sugar alcohol to obtain a preprocessed sheet, processing the preprocessed sheet by a processing agent, refrigerating the sheet, drying the sheet in a drying kiln, and preparing a finished product. Compared with the prior art, the method has the advantages that poplar wood is preprocessed by an ethanol solutionof sugar alcohol at a proper temperature, the structures of cells in the polar sheets are changed; processed poplar sheets will not be cracked in the drying kiln during the drying process; after the poplar sheets are processed by the processing agent, refrigerated, and dried in the drying kiln, the fibers in the wood are redistributed and combined, the fibers become uniform and are resistant to deformation; wood splinters will not be generated during the cutting and planning process, the stability and toughness of obtained poplar sheets are improved, and the application range is enlarged.

Description

technical field [0001] The invention belongs to the technical field of poplar wood chips processing, and in particular relates to a method for improving the toughness of fast-growing poplar wood chips. Background technique [0002] Poplar has the characteristics of fast growth, wide adaptability and easy processing. It has become a pillar industry in many areas. Basswood is a kind of cork. Many light furniture will use basswood as the furniture frame, which is wear-resistant and corrosion-resistant. , not easy to crack, easy to process, strong toughness, etc. Its hardness is moderate, the wood is mild, so it is not easy to crack, the wood grain is fine, easy to process, and strong toughness, but basswood is not easy to plant. First, my country's basswood basically relies on Russian basswood for maintenance. As a result, the production cost increases. The density of fast-growing poplar is equivalent to that of basswood, but its material properties are large, and the wood fiber ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/52B27K5/00
CPCB27K3/52B27K5/001
Inventor 徐治合徐蓝天徐艳云
Owner 安徽三和工艺品有限公司
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