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Nanometer inorganic carbonized wood preparation method, nanometer inorganic carbonized wood products and application of nanometer inorganic carbonized wood

A nano-inorganic, carbonized wood technology, applied in the field of wood processing, can solve the problems of difficult cleaning, easy falling off of carbon powder, decrease in strength and surface hardness, etc., to solve the problem of fiber pores and decrease in adsorption capacity, good corrosion resistance and hydrophobicity. , the effect of improving strength and hardness properties

Active Publication Date: 2015-03-18
ZHEJIANG GUOZHEN FURNITURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbonized wood that has been carbonized still has the following defects: First, in terms of anti-swelling, although the swelling rate has been greatly reduced, in rainy seasons, the indoor relative humidity may reach 95%. The above or carbonized wood floor will still have serious deformation after scrubbing with water for many times; second, it is not easy to clean because of the fast absorption of color, and the anti-fouling ability is poor; third, the strength and surface hardness decrease after deep carbonization treatment , causing the carbon powder on the surface to fall off easily
For the defects of the second and third above-mentioned, the existing ones are often remedied by painting the surface with paint, but after the paint is used, the pipe holes of carbonized wood are blocked and the ability to absorb harmful gases is lost, and the paint often releases toluene, di The hazards of toxic gases such as toluene and formaldehyde

Method used

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  • Nanometer inorganic carbonized wood preparation method, nanometer inorganic carbonized wood products and application of nanometer inorganic carbonized wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Oak is used as the material, and the oak is arranged into the corresponding length, width and thickness (such as length 800mm x width 100mm x thickness 25mm) of wood boards (solid wood boards) according to the requirements of the product, and then stacked outside the carbonization kiln according to the conventional method. In order to further prevent the end surface of wood panels (solid wood panels) from cracking during the carbonization process, thick paint (such as undiluted high-temperature blended paint or anti-embroidery paint, etc.) to cover all end faces;

[0031] Deep carbonization treatment: first put the above-mentioned stacked wood boards (solid wood boards) into the carbonization kiln, close the feed port, and then turn on the heat source, so that the temperature in the carbonization kiln is raised for the first time at a heating rate of 10°C / h to 95°C, do not spray steam at intermittent points during the heating period, keep warm and dry for 2 to 4 hours, ...

Embodiment 2

[0036] Using big-leaf poplar as raw material, arrange the big-leaf poplar into wood boards (solid wood boards) with corresponding length, width and thickness (such as length 800mm x width 100mm x thickness 25mm) according to the product requirements, and then carbonize according to the conventional method For stacking outside the kiln, in order to prevent wood panels (solid wood panels) from cracking during the carbonization process, thick paint (such as undiluted high-temperature blended paint or anti-embroidery paint, etc.) with high temperature resistance (above 300°C) can be used Brushing on the end face to cover the entire end face;

[0037] Deep carbonization treatment: first put the above-mentioned stacked wood boards (solid wood boards) into the carbonization kiln, close the feed port, and then turn on the heat source, so that the temperature in the carbonization kiln is raised for the first time at a heating rate of 15°C / h to 110°C, do not spray steam at intermittent ...

Embodiment 3

[0041] Using big-leaf poplar as raw material, the big-leaf poplar is sorted into wood panels (solid wood panels) with corresponding length, width and thickness (such as length 800mm x width 100mm x thickness 25mm) according to product requirements. The wood panels (solid wood panels) ) with a moisture content of ≤13%, and then stack them outside the carbonization kiln according to conventional methods. High-temperature blended paint or anti-embroidery paint, etc.) evenly brush on the end face to cover all end faces;

[0042]Deep carbonization treatment: first put the above-mentioned stacked wood boards (solid wood boards) into the carbonization kiln, close the feed port, and then turn on the heat source, so that the temperature in the carbonization kiln is raised for the first time at a heating rate of 10°C / h To 100°C, do not spray steam at intermittent points during the heating period, heat preservation and drying for 3 hours, after the heat preservation is over; then, carry ...

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Abstract

The invention relates to a nanometer inorganic carbonized wood preparation method, nanometer inorganic carbonized wood products and application of nanometer inorganic carbonized wood, belongs to the technical field of wood processing, and aims to solve technical problems of low strength and hardness of the existing carbonized wood. The nanometer inorganic carbonized wood preparation method includes performing deep carbonizing treatment on absolute dry wood panels at the temperature of 195 DEG C to 220 DEG C, and cooling to perform humidifying and heat insulating treatment to enable moisture content of the carbonized wood to reach a fiber saturation point; and then placing the humid carbonized wood into inorganic nanometer additive to be inorganically nanocrystallized so as to acquire the nanometer inorganic carbonized wood. The nanometer inorganic carbonized wood preparation method has the advantages that the method is simple in technique conditions and easy to operate, the strength and hardness of the acquired products are high, the carbonized wood performance is acquired, and adsorbability, fire resistance, non corrosibility and dewatering performance to harmful gas are better and air shrinkage bulking factor is low. The nanometer inorganic carbonized wood can be further used for wood components like floors.

Description

technical field [0001] The invention relates to a preparation method of nano inorganic carbonized wood and its product and application, belonging to the technical field of wood processing. Background technique [0002] Due to its excellent performance in anti-corrosion, fire retardation, crack prevention, absorption of harmful gases and reduction of equilibrium moisture content, deep carbonized wood is known as wood that does not crack, does not grow bacteria, does not grow insects, does not fire and purifies the air. . Therefore, it can be used in a wider range of applications, such as materials for wood components, flooring, and the like. [0003] Most of the existing deep carbonized wood is carbonized wood obtained by deep carbonization treatment at high temperature. The deep carbonization treatment is not only the depth of geometric dimensions, but mainly includes the depth of the degree of carbonization, that is, the size of the carbonization rate. Generally speaking, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M1/06
Inventor 陶国呈陈子红
Owner ZHEJIANG GUOZHEN FURNITURE
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