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Eucalyptus plate modifying method

A technology of board and eucalyptus, which is applied in the field of modification of eucalyptus board, can solve the problem of inability to solve the problem of fungal decay of wood board, and achieve the effect of improving anticorrosion performance, improving performance and purifying the environment

Inactive Publication Date: 2018-03-27
中垣林业科技(定南)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patents cannot solve the problem of fungus rot of wood panels

Method used

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  • Eucalyptus plate modifying method

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Effect test

Embodiment 1

[0017] A method for modifying eucalyptus boards, the technological process comprising:

[0018] (1) Prepare modifier: Accurately weigh 20.0g of chitosan and place it in 400mL of 2% acetic acid solution, stir to dissolve, add 40mL of 2% glutaraldehyde, stir, keep at 50°C for 1 hour to obtain a yellow transparent chitosan hydrogel, and place it at room temperature 48h to get yellow transparent chitosan hydrogel, add chitosan hydrogel, activator, catalyst and other additives in distilled water, take 1L distilled water as standard, chitosan hydrogel 50mL, activator 10g, catalyst 8g and other additives 20g, the ratio of other additives is: 50% thickener and 50% stabilizer, add acid-base buffer while stirring, adjust the pH value of the solution between 6.5 to form a uniform solution;

[0019] (2) Impregnation of eucalyptus boards: using traditional vacuum pressurization equipment for wood preservative treatment, the full-cell method is used to soak the eucalyptus boards, and the eu...

Embodiment 2

[0022] A method for modifying eucalyptus boards, the technological process comprising:

[0023] (1) Preparation of modifier: Accurately weigh 35.0g of chitosan and place it in 400mL of 3% acetic acid solution, stir to dissolve, add 60mL of 2% glutaraldehyde, stir, and keep the temperature at 52°C for 1.5h to obtain a yellow transparent chitosan hydrogel, room temperature Place 48h to get yellow transparent chitosan hydrogel, add chitosan hydrogel, activator, catalyst and other additives in distilled water, take 1L distilled water as standard, chitosan hydrogel 80mL, activator 12g, catalyst 10g and others 25g of additives, the proportioning of other additives is: 60% thickener and 40% stabilizer, add acid-base buffer while stirring, adjust the pH value of the solution between 6.8 to form a uniform solution;

[0024] (2) Impregnation of eucalyptus boards: using traditional vacuum pressurization equipment for wood preservative treatment, the full-cell method is used to soak the e...

Embodiment 3

[0027] A method for modifying eucalyptus boards, the technological process comprising:

[0028] (1) Preparation of modifier: Accurately weigh 50.0g of chitosan, place it in 400mL of 5% acetic acid solution, stir to dissolve, add 80mL of 2% glutaraldehyde, stir, keep at 55°C for 2h to obtain a yellow transparent chitosan hydrogel, and place it at room temperature 48h to get yellow transparent chitosan hydrogel, add chitosan hydrogel, activator, catalyst and other additives in distilled water, take 1L distilled water as standard, chitosan hydrogel 100mL, activator 15g, catalyst 12g and other additives 30g, the ratio of other additives is: 70% thickener and 30% stabilizer, add acid-base buffer while stirring, adjust the pH value of the solution between 7.2 to form a uniform solution;

[0029] (2) Impregnation of eucalyptus boards: using traditional vacuum pressurization equipment for wood preservative treatment, the full-cell method is used to soak the eucalyptus boards, and the ...

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Abstract

The invention discloses a eucalyptus plate modifying method which comprises the following steps: preparing a modifying agent; impregnating a eucalyptus plate; and carrying out drying, polymerization and modification. According to the eucalyptus plate modifying method, chitosan is easy to dissolve in a weak-acid solvent; particularly, a solution obtained after the dissolution contains amidogen (NH2+), and amidogen is bonded with a negative electron so as to inhibit bacteria, so that the anti-corrosion property of the eucalyptus plate can be effectively improved by bonding the modifying agent which contains the chitosan component with the eucalyptus plate; furthermore, chitosan has a significant characteristic of adsorbing capacity, that is, chitosan is capable of adsorbing and discharging heavy metal, so that the environment can be purified and the harm to the human body can be reduced; and accordingly, when the modifying agent which contains chitosan is bonded with the eucalyptus platethrough the eucalyptus plate modifying method, the properties of the eucalyptus plate can be greatly improved.

Description

technical field [0001] The invention relates to the field of wood modification, in particular to a method for modifying eucalyptus boards. Background technique [0002] The main raw material of my country's wood industry has turned to artificial fast-growing forest wood. Although my country has the largest artificial forest in the world, the material of the artificial forest is soft, low in density, low in strength, unattractive in texture and color, and prone to deformation, cracking and fungal rot in the environment. These defects make it difficult to be used to produce high-quality wooden products. [0003] For example, the patent CN201510732296.0 discloses a wood modification liquid and a method for treating wood using it. The wood modification liquid consists of 0.5-5% activator, 5-50% low-molecular sugar , 0-3% catalyst, 0-0.5% stabilizer, 0.5-5% additive and water. The method of wood modification treatment is as follows: inject the wood modification liquid into the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08B27K3/50B27K5/00B27K5/04B27K3/12
CPCB27K3/08B27K3/12B27K3/50B27K5/0065B27K5/04B27K2240/20
Inventor 郭奕伦
Owner 中垣林业科技(定南)有限公司
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