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High-strength antibacterial wood preparation method and high-strength antibacterial wood

A high-strength, wood-based technology, applied in wood compression, wood treatment, wood heating, etc., can solve problems such as mildew, material performance degradation, and shortened lifespan, and achieve improved surface hardness, good dimensional stability, and improved performance Effect

Active Publication Date: 2019-09-20
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of wood, the problem of mildew is serious, which reduces the performance of the material and shortens the life span.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of high-strength antibacterial wood, specifically as follows:

[0024] 1. configuration molarity is 0.4mol / L sodium sulfite solution 43ml and 1mol / L sodium hydroxide solution 108ml; Then sodium sulfite and sodium hydroxide mixed solution and natural boxwood veneer (here, the size of natural boxwood is determined, Therefore, the mass is a constant value) together in a collector-type constant temperature heating magnetic stirrer and heated to 100° C., and stirred for 8 hours to remove lignin and hemicellulose in the wood.

[0025] 2. Take out the wood treated in step 1, wash and dry it and put it into a magnetic stirrer, simultaneously pour 8.5g of aniline and 4.25g of ammonium persulfate and 170ml of hydrochloric acid with a molar concentration of 1mol / L into the magnetic stirrer, Stirring and reacting for 6 hours at a speed of 300 r / min at room temperature to obtain pretreated wood containing polyaniline.

[0026] 3. prepare electroplating solution...

Embodiment 2

[0029] A preparation method of high-strength antibacterial wood, specifically as follows:

[0030] 1. Configure 43ml of sodium sulfite solution with a molar concentration of 0.4mol / L and 108ml of sodium hydroxide solution with a molar concentration of 1mol / L; then put the mixed solution of sodium sulfite and sodium hydroxide and natural boxwood veneer into the collector type constant temperature heating magnetic stirring Heat the device to 100°C and stir for 8 hours to remove lignin and hemicellulose in the wood.

[0031] 2. Take out the wood treated in step 1, wash and dry it and put it into a magnetic stirrer, simultaneously pour 8.5g of aniline and 4.25g of ammonium persulfate and 170ml of hydrochloric acid with a molar concentration of 1mol / L into the magnetic stirrer, Under room temperature, with the rotating speed of 350r / min, stirring reaction 4.5h, obtain the pretreated wood containing polyaniline

[0032] 3. prepare electroplating solution 400ml, solute and solute co...

Embodiment 3

[0035] A preparation method of high-strength antibacterial wood, specifically as follows:

[0036] 1. Configure 43ml of sodium sulfite solution with a molar concentration of 0.4mol / L and 108ml of sodium hydroxide solution with a molar concentration of 1mol / L; then put the mixed solution of sodium sulfite and sodium hydroxide and natural boxwood veneer into the collector type constant temperature heating magnetic stirring Heat the device to 100°C and stir for 8 hours to remove lignin and hemicellulose in the wood.

[0037] 2. Take out the wood treated in step 1, wash and dry it and put it into a magnetic stirrer, simultaneously pour 8.5g of aniline and 4.25g of ammonium persulfate and 170ml of hydrochloric acid with a molar concentration of 1mol / L into the magnetic stirrer, Under room temperature, with the rotating speed of 400r / min, stirring reaction 3h, obtain the pretreated wood containing polyaniline

[0038] 3. prepare electroplating solution 400ml, solute and solute conc...

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Abstract

The invention discloses a high-strength antibacterial wood preparation method and a high-strength antibacterial wood. During the use, the mildew of wood is serious, such that the performances of the material are reduced, and the service life is shortened. According to the method, lignin and hemicellulose are removed from wood, the obtained wood is infiltrated with polyaniline, and the polyaniline-containing pretreated wood is placed in an electroplating solution and is electroplated to obtain a metal-plated wood complex; and the metal-plated wood complex is placed in a hot pressing machine, and is subjected to hot pressing. According to the present invention, lignin and hemicellulose are removed from wood by using a sodium sulfite solution so as to substantially increase the nanometer gaps inside the wood and improve the adsorption capacity of the wood; polyaniline is uniformly distributed inside the wood, such that the wood has electrical conductivity; and the hot pressing drying technology promotes the internal moisture of the wood to move to the outside.

Description

technical field [0001] The invention belongs to the technical field of wood treatment, and in particular relates to a preparation method of high-strength antibacterial wood and high-strength antibacterial wood. Background technique [0002] Wood is widely used in construction, communication, transportation, national defense, medical treatment and daily necessities because of its low price, easy shape, good insulation, low density and high specific strength. However, during the use of wood, the problem of mildew is serious, which reduces the performance of the material and shortens the life span. Therefore, invent a kind of preparation method of antibacterial wood, certainly can prolong the service life of wood and improve use safety and reliability. Contents of the invention [0003] The object of the present invention is to propose a preparation method of high-strength antibacterial wood and high-strength antibacterial wood aiming at the deficiencies of the prior art. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/20B27K5/00B27M1/02
CPCB27K3/20B27K5/001B27K5/002B27K2240/20B27M1/02
Inventor 杨肖施黎峰朴寄纲张雪峰
Owner HANGZHOU DIANZI UNIV
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