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Preparing method for antibacterial and ultraviolet-resisting wood and obtained product

An anti-ultraviolet and wood technology, applied in the direction of wood treatment, impregnation of wood, wood impregnation, etc., can solve the problems of loss of modification effect, easy damage of the surface layer, complicated process, etc., and achieve excellent antibacterial performance, good antibacterial effect, and simple treatment process Effect

Inactive Publication Date: 2016-10-12
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface properties of the modified wood obtained by this method are excellent, but the process is complicated, and only the surface of the wood is modified, and the surface layer is easily damaged and loses the modification effect.

Method used

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  • Preparing method for antibacterial and ultraviolet-resisting wood and obtained product
  • Preparing method for antibacterial and ultraviolet-resisting wood and obtained product
  • Preparing method for antibacterial and ultraviolet-resisting wood and obtained product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of wood impregnation solution

[0035] Impregnation solution A: Add zinc nitrate to distilled water and stir until fully dissolved to obtain wood impregnation solution A; the content of the zinc nitrate solution is 0.6 mol / L.

[0036] Immersion solution B: prepare sodium hydroxide solution, and the mass fraction of the substance is 0.4mol / L.

[0037] 2. Wood impregnation treatment

[0038] Place the prepared wood blocks in a vacuum pressurized tank filled with impregnation solution A, and soak them in the wood impregnation solution, connect the vacuum equipment, vacuumize, and perform decompression impregnation treatment on the wood to make the wood absorb the impregnation solution A, to obtain impregnated wood; wherein the vacuum impregnation process is carried out at a temperature of 20° C., a vacuum of 0.095 Mpa, and a time of 20 minutes, followed by impregnation at normal pressure for 120 minutes.

[0039] 3. Curing treatment

[0040] Soak the impr...

Embodiment 2

[0052] 1. Preparation of wood impregnation solution

[0053] Impregnation solution A: add zinc nitrate to distilled water, stir until fully dissolved, and obtain wood impregnation solution A; wherein the content of the zinc nitrate solution is 1.0 mol / L.

[0054] Immersion solution B: prepare sodium hydroxide solution, and the mass fraction of the substance is 0.4mol / L.

[0055] 2. Wood impregnation treatment

[0056] Place the prepared wood blocks in a vacuum pressurized tank filled with impregnation solution A, and soak them in the wood impregnation solution, connect the vacuum equipment, vacuumize, and perform decompression impregnation treatment on the wood to make the wood absorb the impregnation solution A, the obtained impregnated wood; wherein the vacuum impregnation process is carried out at a temperature of 20° C., a vacuum of 0.08 Mpa, and a time of 30 minutes, and then impregnated under normal pressure for 120 minutes.

[0057] 3. Curing treatment

[0058] Soak ...

Embodiment 3

[0062] 1. Preparation of wood impregnation solution

[0063] Impregnation solution A: Add zinc nitrate to distilled water and stir until fully dissolved to obtain wood impregnation solution A; the content of the zinc nitrate solution is 0.6 mol / L.

[0064] Impregnation solution B: configure ammonia solution with a mass fraction of 25%.

[0065] 2. Wood impregnation treatment

[0066] Place the prepared wood blocks in a vacuum pressurized tank filled with impregnation solution A, and soak them in the wood impregnation solution, connect the vacuum equipment, vacuumize, and perform decompression impregnation treatment on the wood to make the wood absorb the impregnation solution A, to obtain impregnated wood; wherein the vacuum impregnation process is carried out at a temperature of 20° C., a vacuum of 0.095 Mpa, and a time of 20 minutes, followed by impregnation at normal pressure for 120 minutes.

[0067] 3. Curing treatment

[0068] Soak the impregnated wood in the impregna...

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Abstract

The invention provides a method for preparing antibacterial and anti-ultraviolet wood, comprising sequentially using wood impregnating solution A and wood impregnating solution B to impregnate wood, wherein the wood impregnating solution A is an aqueous solution of zinc salt, and the wood impregnating solution B Aqueous solution of alkali. The invention also proposes the material prepared by the preparation method. The wood treatment process proposed by the present invention uses a wet chemical method to generate nano-zinc oxide in situ inside the wood. The binding force between the nano-particles and wood components is strong, it is not easy to be lost, and the modification effect is long-lasting. The wood treatment method can not only endow the wood with excellent antibacterial properties and anti-ultraviolet properties, but also has good thermal stability.

Description

technical field [0001] The invention belongs to the field of wood processing and preservation, and in particular relates to a wood antibacterial and anti-ultraviolet treatment method. Background technique [0002] Wood is a natural material. Wood and its products are widely used in interior decoration, furniture manufacturing, house construction and exterior decoration. However, the composition and structure of wood itself cause wood to be hygroscopic, which is prone to shrinkage, swelling, deformation and cracking , is susceptible to corrosion and decay by bacteria and molds, and at the same time, it is prone to degradation and discoloration under ultraviolet radiation, which affects the use of wood and reduces the service life of wood. , Improving the use value of wood, saving wood resources and increasing the added value of wood are of great significance. [0003] At present, the main material for wood antibacterial treatment is organic antibacterial agents (such as pent...

Claims

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Application Information

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IPC IPC(8): B27K3/04B27K3/08B27K3/22B27K5/00B27K5/04
CPCB27K3/04B27K3/08B27K3/22B27K5/00B27K5/0005B27K5/04
Inventor 董友明张世锋张伟陈慧李建章
Owner BEIJING FORESTRY UNIVERSITY
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