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Preparation method of artificial timber for generating negative oxygen ions like living standing stock

A negative oxygen ion and wood technology, applied in the field of wood bionics, can solve the problems of single function and low added value, achieve broad application prospects and increase added value

Active Publication Date: 2019-08-23
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional wood processing products have low added value and single function

Method used

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  • Preparation method of artificial timber for generating negative oxygen ions like living standing stock
  • Preparation method of artificial timber for generating negative oxygen ions like living standing stock
  • Preparation method of artificial timber for generating negative oxygen ions like living standing stock

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] S101: Dissolve 100 g of sodium hydroxide and 50 g of sodium sulfite in 1000 mL of deionized water to prepare a sodium hydroxide / sodium sulfite aqueous solution, wherein the concentration of sodium hydroxide is 2.5 mol / L, and the concentration of sodium sulfite is 0.4 mol / L;

[0048] S102: heating the sodium hydroxide / sodium sulfite aqueous solution to 100°C, immersing the wood in it for cooking for 7 hours;

[0049] S103: putting the cooked wood into deionized water, and heating to 100° C. to remove residual reagents in the wood;

[0050] S201: Put 30g of melamine into the crucible and treat it at 550°C for 4 hours;

[0051] S202: After the product of S201 is cooled to room temperature, it is dispersed in concentrated hydrochloric acid and settled for 24 hours, and the precipitated particles are collected after centrifugation;

[0052] S203: Wash the precipitated particles in step S202 with deionized water and dry in an oven to obtain the g-C3 N 4 ;

[0053] S301: Mi...

Embodiment 2

[0062] S101: Dissolve 0.4 g of sodium hydroxide and 1.26 g of sodium sulfite in 1000 mL of deionized water to prepare a sodium hydroxide / sodium sulfite aqueous solution, wherein the concentration of sodium hydroxide is 0.01 mol / L, and the concentration of sodium sulfite is 0.01 mol / L;

[0063] S102: heating the sodium hydroxide / sodium sulfite aqueous solution to 100°C, immersing the wood in it for 0.1h;

[0064] S103: putting the cooked wood into deionized water, and heating to 100° C. to remove residual reagents in the wood;

[0065] S201: Put 1 g of melamine into a crucible and treat it at 550°C for 4 hours;

[0066] S202: After the product of S201 is cooled to room temperature, it is dispersed in concentrated hydrochloric acid and settled for 24 hours, and the precipitated particles are collected after centrifugation;

[0067] S203: Wash the precipitated particles in step S202 with deionized water and dry in an oven to obtain the g-C 3 N 4 ;

[0068] S301: Mix 1.985g of...

Embodiment 3

[0077] S101: Dissolve 200 g of sodium hydroxide and 378 g of sodium sulfite in 1000 mL of deionized water to prepare a sodium hydroxide / sodium sulfite aqueous solution, wherein the concentration of sodium hydroxide is 5 mol / L, and the concentration of sodium sulfite is 3 mol / L;

[0078] S102: heating the sodium hydroxide / sodium sulfite aqueous solution to 100°C, soaking the wood in it for cooking for 48 hours;

[0079] S103: putting the cooked wood into deionized water, and heating to 100° C. to remove residual reagents in the wood;

[0080] S201: Put 100g of melamine into the crucible and treat it at 550°C for 4 hours;

[0081] S202: After the product of S201 is cooled to room temperature, it is dispersed in concentrated hydrochloric acid and settled for 24 hours, and the precipitated particles are collected after centrifugation;

[0082] S203: Wash the precipitated particles in step S202 with deionized water and dry in an oven to obtain the g-C 3 N 4 ;

[0083] S301: Mix...

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Abstract

The invention belongs to the technical field of timber bionics, and provides a preparation method of artificial timber for generating negative oxygen ions like living standing stock, which comprises the following steps: pretreating the timber; preparation of g-C3N4; preparation of cesium tungstate nanoparticles; adding cesium tungstate nanoparticles and g-C3N4 into deionized water and performing ultrasonic dispersion to obtain cesium tungstate / g-C3N4 aqueous dispersion; impregnating the pretreated wood with cesium tungstate / g-C3N4 aqueous dispersion, performing repeated vacuum pressure impregnation treatment for multiple time; drying the impregnated wood at room temperature; performing heat compression treatment on the dried wood to obtain the artificial timber for generating negative oxygen ions like living standing stock. The method takes wood, which is a renewable building decorative material, as a base material, uses sodium hydroxide / sodium sulfite aqueous solution to pre-treat thewood, and combines the vacuum pressure impregnation and hot compression treatment to prepare the artificial timber loaded with cesium tungstate / g-C3N4 composite.

Description

technical field [0001] The invention relates to the technical field of wood bionics, in particular to a method for preparing artificial wood produced by imitating living standing trees and producing negative oxygen ions. Background technique [0002] Oxygen is negatively charged due to external excitation to form negative oxygen ions. It has many beneficial effects such as improving air quality, regulating human heart and lung function, and promoting metabolism. It is known as "air vitamin". In nature, forests are rich in negative oxygen ions, mainly due to the photoelectric effect caused by the tip discharge of tree branches and leaves and photosynthesis. [0003] As a green, natural, renewable, environmentally friendly and safe material, wood has been widely used in the field of construction and decoration materials. Traditional wood processing products have low added value and single functions. With the continuous improvement of people's living standards and the continu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/00B27K3/08B27K3/20B27K3/32B27K5/00B27K5/04
CPCB27K3/005B27K3/007B27K3/08B27K3/20B27K3/32B27K5/001B27K5/007B27K5/0085B27K5/04
Inventor 孙庆丰王喆严玉涛李彩彩王超
Owner ZHEJIANG FORESTRY UNIVERSITY
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