Method for preparing reinforced and flame-retardant carbonized rubber and wood board

A technology of rubber wood and carbonization, which is applied in wood treatment, impregnation of wood, wood impregnation, etc., can solve the problems of diversification of the color of carbonized wood at a single treatment temperature, unfavorable subsequent use of carbonized wood boards, and high treatment temperature of carbonized wood boards, so as to reduce corrosion Effects of treatment process, optimization of drying/carbonization process, and shortening of drying/carbonization time

Active Publication Date: 2019-10-22
RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The carbonized wood board involved in CN108189184A is treated at too high a temperature, and the strength loss of the wood board is large, which is not conducive to the subsequent use of the carbonized wood board
A single treatment temperature also has certain limitations in pursuing the diversification of carbonized wood colors

Method used

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  • Method for preparing reinforced and flame-retardant carbonized rubber and wood board
  • Method for preparing reinforced and flame-retardant carbonized rubber and wood board
  • Method for preparing reinforced and flame-retardant carbonized rubber and wood board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] A kind of preparation method of reinforced, flame-retardant carbonized rubber wood board comprises the following steps:

[0067] (1) sawing the rubber wood logs into wooden squares;

[0068] (2) Stack the rubber wood squares, put them into a high-temperature carbonization kiln or carbonization tank, and carry out preheating treatment; pass in steam, and adjust the preheating treatment temperature from 40°C to ensure that the dry and wet bulb temperatures rise synchronously To 100°C, the treatment time is 24h;

[0069] (3) Stop feeding steam, continue heating to enter the low-temperature drying treatment stage, gradually raise the temperature from 100°C to 130°C, and process for 48 hours;

[0070] (4) During the high-temperature carbonization treatment stage, continue to feed steam, adjust the carbonization temperature to 170°C, and process for 8 hours;

[0071] (5) In the cooling treatment stage, use atomized water to cool down to about 95°C, and the treatment time is...

Embodiment 2

[0079] The difference from Example 1 is that the water-soluble flame retardant and reinforcing liquid used in Example 2 are respectively: the water-soluble flame retardant is a mixture of 2 parts of boric acid, 8 parts of disodium tetraborate, and 100 parts of water.

[0080] The reinforcing fluid is water glass, which is made by mixing 30 parts of 40A water glass and 100 parts of water.

[0081] In addition, in Example 2, (2) stack the rubber wood squares, place them in a high-temperature carbonization kiln or carbonization tank, and perform preheating treatment; Next, adjust the preheating treatment temperature from 40 to 100° C., and the treatment time is 48 hours; (7) Cut the impregnated wood into 2.0 cm thick boards by multi-blade sawing.

Embodiment 3

[0083] The difference from Example 1 is that the water-soluble flame retardant and reinforcing liquid used in Example 5 are respectively: the water-soluble flame retardant is ammonium polyphosphate, diammonium hydrogen phosphate, boric acid, and its consumption is 4 parts of ammonium polyphosphate, Diammonium hydrogen phosphate 15 parts, boric acid 4 parts, water 100 parts.

[0084] The reinforcing fluid is water glass, and its dosage is 40 parts of 50A water glass and 100 parts of water.

[0085] In addition, in Example 3, (2) stack the rubber wood squares, place them in a high-temperature carbonization kiln or carbonization tank, and perform preheating treatment; Next, adjust the preheating treatment temperature from 40 to 100°C, and the treatment time is 36h.

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Abstract

The invention belongs to the technical field of wood board processing, and concretely relates to a method for preparing a reinforced and flame-retardant carbonized rubber and wood board. The method comprises a high temperature carbonization treatment process and a flame retardation and reinforcement integrated treatment process. The high temperature carbonization treatment process includes preheating treatment, low temperature drying treatment, high temperature carbonization treatment and cooling treatment. The flame retardation and reinforcement integrated treatment process includes preparation of a flame retarding and reinforcing solution and low temperature pressure impregnation treatment. The method reduces the anticorrosion treatment process of conventional rubber wood processing, saves the cost, optimizes a conventional rubber and wood drying / carbonizing process, realizes one-time drying / carbonizing, shortens the drying / carbonizing time, realizes the flame retardation and reinforcement one-time treatment, saves the time and cost, and enhances the flame retardant property of the board. The reinforced and flame-retardant carbonized rubber and wood board has the advantages of improved density, improved dimensional stability, improved surface strength, improved flame retardant performance, uniform surface color and high yield, and solves the problem of easy deformation of a thin board, caused by drying / carbonization.

Description

technical field [0001] The invention belongs to the technical field of wood board processing, and in particular relates to a preparation method of reinforced and flame-retardant carbonized rubber wood board. Background technique [0002] When rubber wood is used as a decorative material, because it is a medium-hard wood, it has general resistance to external force and wear resistance. After high-temperature heat treatment (commonly known as carbonization), the color will change and obtain a color similar to that of tropical hardwood, but its hardness is similar to that of mechanical The intensity will decrease to varying degrees. With the enhancement of people's awareness of fire protection and the development trend of this field, indoor and outdoor decorative wood materials must reach a certain fire rating before they are allowed to be used, which puts forward higher requirements for the wood panel industry. The current rubber wood processing methods do not have the functi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/08B27K5/04B27M1/06
CPCB27K3/02B27K3/08B27K5/04B27K2240/30B27M1/06
Inventor 蒋汇川陆全济李冠君李彤彤李家宁
Owner RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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