Treatment method for improving mildew resistance of wood

A processing method and technology for wood, applied in wood treatment, wood treatment details, radiation/wave wood treatment, etc., can solve the problems of poor adhesion between nano-copper and wood, and the waterproof performance of wood is not improved, so as to improve the anti-mold performance. and hydrophobic performance, improve hydrophobic performance, improve the effect of binding force and adhesion

Inactive Publication Date: 2020-02-21
阜南县猛发工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The patent (the application number is CN 108145817 A) discloses a method for the preparation and application of anti-mildew heat-treated wood. The copper-containing compound impregnating solution prepared with copper hydroxide, diethanolamine, polyethylene glycol 200 and water is vacuum-pressurized. Masson pine wood, combined with the traditional wood heat treatment method, obtains nano-copper in situ in the wood to achieve the purpose of inhibiting mold. However, the combination of nano-copper and wood is poor in this treatment method, and the waterproof performance of the wood has not been improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A treatment method for improving wood mildew resistance, comprising the following steps:

[0019] (1) Put the wood into a vacuum impregnation tank, add absolute ethanol to it to submerge the wood, raise the temperature to 75°C, evacuate to 50Pa, vacuum impregnate for 1h, then slowly pressurize to 1.8MPa, keep for 2h, and slowly release pressure, take out the wood;

[0020] (2) Wipe off the ethanol on the surface of the wood obtained in step (1), put it directly into the microwave device, treat it with microwave at 0.3KW for 2 minutes, then increase the power to 1.2KW, continue the treatment for 1min, and increase the power again to 2.2KW, Treat for 30 minutes, take out;

[0021] (3) Immerse the wood obtained in step (2) in the primary treatment solution, heat it to a temperature of 50°C, and apply ultrasonic treatment for 50 minutes, then take out the wood, dry it at 30°C for 4 hours in a neon atmosphere, and then immerse it again in the second treatment solution. In ...

Embodiment 2

[0028] A treatment method for improving wood mildew resistance, comprising the following steps:

[0029] (1) Put the wood into a vacuum impregnation tank, add absolute ethanol to it to submerge the wood, raise the temperature to 76°C, evacuate to 60Pa, vacuum impregnate for 2 hours, then slowly pressurize to 1.9MPa, keep for 3 hours, and slowly release pressure, take out the wood;

[0030] (2) Wipe off the ethanol on the surface of the wood obtained in step (1), put it directly into the microwave device, microwave at 0.4KW for 4 minutes, then increase the power to 1.3KW, continue to process for 2 minutes, and increase the power again to 2.3KW, Treat for 35 minutes, take out;

[0031] (3) Immerse the wood obtained in step (2) in the primary treatment solution, heat it to a temperature of 55°C, and apply ultrasonic treatment for 55 minutes, then take out the wood, dry it in a neon atmosphere at 35°C for 5 hours, and then immerse it again in the second treatment solution. In th...

Embodiment 3

[0038] A treatment method for improving wood mildew resistance, comprising the following steps:

[0039] (1) Put the wood into a vacuum impregnation tank, add absolute ethanol to it to submerge the wood, raise the temperature to 76°C, evacuate to 80Pa, vacuum impregnate for 2 hours, then slowly pressurize to 2.0MPa, keep for 3 hours, and slowly release pressure, remove the wood;

[0040] (2) Wipe off the ethanol on the surface of the wood obtained in step (1), put it directly into the microwave device, microwave at 0.5KW for 5 minutes, then increase the power to 1.4KW, continue processing for 2 minutes, and increase the power again to 2.3KW, Treat for 40 minutes, take out;

[0041](3) Immerse the wood obtained in step (2) in the primary treatment solution, heat it to a temperature of 60°C, and apply ultrasonic treatment for 60 minutes, then take out the wood, dry it in a neon atmosphere at 40°C for 5 hours, and then immerse it again in the second treatment solution. In the s...

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Abstract

The invention discloses a treatment method for improving the mildew resistance of wood, and particularly relates to the technical field of wood treatment. Wood is impregnated with a primary treatmentliquid, and methacryloyl chloride contained in the primary treatment liquid can react with hydroxyl groups on the surface of the wood, and introduces unsaturated double bonds to the surface of the wood, so the hydrophobicity of the wood is improved; and the wood is impregnated with a secondary treatment liquid, modified nano-copper contained in the secondary treatment liquid is obtained by in-situmodification of butyl methacrylate and styrene under the action of an initiator, and in-situ polymerization on the surface of the nano-copper introduces end group double bonds to the surface of the nano-copper. When the wood is impregnated with the secondary treatment liquid, the end group double bonds on the surface of the modified nano-copper and double bonds on the surface of wood are subjected to an addition polymerization reaction under the action of the initiator, so that the binding force and the adhesive force of the nano-copper and wood fibers are improved, the mildew resistance of the wood is remarkably improved, and benzene rings, double bonds and other groups are introduced to the surface of the wood to improve the hydrophobicity of the wood.

Description

technical field [0001] The invention belongs to the technical field of wood treatment, in particular to a treatment method for improving the mildew resistance of wood. Background technique [0002] Wood is an important raw material in production and life, and it can be seen everywhere from tables, chairs, benches to ship decks. Because the wood is loose and porous and has strong hydrophilicity, the wood itself has great defects, and it is easy to be corroded by mildew and insects, causing the corrosion of the wood and affecting the normal use, and it is not easy to preserve for a long time. Therefore, before the wood is used, it is necessary to carry out a series of processing on the wood. [0003] The patent (the application number is CN 108145817 A) discloses a method for the preparation and application of anti-mildew heat-treated wood. The copper-containing compound impregnating solution prepared with copper hydroxide, diethanolamine, polyethylene glycol 200 and water is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08B27K3/34B27K3/52B27K5/00
CPCB27K3/08B27K3/34B27K3/52B27K5/001B27K5/0055B27K5/0065
Inventor 李明李东猛
Owner 阜南县猛发工艺品有限公司
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