A kind of flame retardant modification treatment method of bamboo

A treatment method, bamboo technology, applied in wood treatment, wood treatment details, reed/straw treatment, etc., can solve the problems of bamboo easy to burn and loss resistance, so as to facilitate mass production, improve flame retardancy and flame retardancy stability permanent, easy-to-control effects

Active Publication Date: 2021-01-22
福建省顺昌县升升木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a bamboo flame-retardant modification treatment method for the disadvantages of easy combustion of bamboo and poor loss resistance of existing bamboo flame-retardant treatment methods

Method used

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  • A kind of flame retardant modification treatment method of bamboo

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Place the dried bamboo sample in an automatic vacuum pressure tank, evacuate to a vacuum of 0.05 MPa, and after holding the pressure for 30 minutes, inject 5% by weight of 4,4'-diphenyl Dioxane solution of methane diisocyanate, pressurized to 1MPa, kept the pressure for 2 hours, and released the pressure; after continuing to impregnate for 2 hours under normal pressure, take out the bamboo sample, and vacuum dry it at 60°C for 24 hours to obtain a primary modified bamboo. sample;

[0017] (2) Place the primary modified bamboo sample in an automatic vacuum pressurized tank, evacuate to a vacuum degree of 0.04MPa, and after holding the pressure for 20min, inject 10% by weight of 9,10-dihydro-9- Oxa-10-phosphaphenanthrene-10-oxide in dioxane solution, pressurized to 1MPa, kept the pressure for 2h, and released the pressure; after continuing to impregnate for 3h under normal pressure, take out the bamboo sample, and put it at 60℃ Dry in vacuum for 24 hours to obtain a ...

Embodiment 2

[0019] (1) Place the dried bamboo sample in an automatic vacuum pressure tank, evacuate to a vacuum of 0.07 MPa, and after holding the pressure for 60 minutes, inject 8% by weight of 4,4'-diphenyl Dioxane solution of methane diisocyanate, pressurize to 1.2MPa, keep the pressure for 1.5h, and release the pressure; continue impregnating under normal pressure for 3h, take out the bamboo sample, and dry it in vacuum at 60°C for 24h to obtain a primary modification Handling of bamboo samples;

[0020] (2) Place the primary modified bamboo sample in an automatic vacuum pressurized tank, evacuate to a vacuum degree of 0.06MPa, and after holding the pressure for 30min, inject 15% by weight of 9,10-dihydro-9- The dioxane solution of oxa-10-phosphaphenanthrene-10-oxide was pressurized to 1.5MPa, maintained for 1.5h, and then released; the bamboo sample was taken out after continuing to impregnate for 4.5h under normal pressure, and the Vacuum dry at 60°C for 24 hours to obtain a second...

Embodiment 3

[0022] (1) Place the dried bamboo sample in an automatic vacuum pressurized tank, evacuate to a vacuum degree of 0.09MPa, and after holding the pressure for 90min, inject 10% by weight of 4,4'-diphenyl Dioxane solution of methane diisocyanate, pressurize to 1.5MPa, keep the pressure for 1h, and release the pressure; continue impregnation under normal pressure for 4h, take out the bamboo sample, and vacuum dry at 60°C for 24h to obtain a primary modification treatment Bamboo samples;

[0023] (2) Place the primary modified bamboo sample in an automatic vacuum pressurized tank, evacuate to a vacuum degree of 0.08MPa, and after holding the pressure for 40min, inject 20% by weight of 9,10-dihydro-9- Oxa-10-phosphaphenanthrene-10-oxide in dioxane solution, pressurized to 2MPa, kept the pressure for 1h, and released the pressure; after continuing to impregnate for 6h under normal pressure, take out the bamboo sample, at 60°C Dry in vacuum for 24 hours to obtain a secondary modified...

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PUM

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Abstract

The invention discloses a bamboo material flame-retardant modification treatment method, and belongs to the technical field of bamboo product flame-retardant treatment. The bamboo material flame-retardant modification treatment method comprises the steps that: firstly, a 4, 4'-diphenylmethane diisocyanate solution is used for conducting primary modification treatment on bamboo wood, and then a 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide solution is used for conducting secondary modification treatment on the bamboo wood. According to the bamboo wood flame-retardant modification treatment method, the flame retardance and flame-retardant stability of the bamboo wood can be remarkably improved, the treatment process is simple to operate and easy to control, and industrial large-batch production can be conveniently achieved.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant treatment of bamboo products, and in particular relates to a method for flame-retardant modification of bamboo. Background technique [0002] my country is one of the countries with the richest bamboo resources in the world. Compared with wood, bamboo grows faster, has stronger vitality, higher yield and better toughness, so bamboo has an irreplaceable position in construction, furniture and decoration materials. However, when bamboo encounters flames or strong heat radiation, it is very easy to burn and cause fire. This danger greatly limits the popularization and use of bamboo. Therefore, the flame-retardant modification of bamboo has important economic value and social significance. Coating flame retardants or flame retardant coatings on the surface of bamboo is a common treatment method for bamboo flame retardant treatment. The surface coating treatment process has little effect on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K9/00B27K3/36B27K3/34B27K3/08B27K3/02B27K5/04
CPCB27K3/025B27K3/08B27K3/343B27K3/36B27K5/04B27K9/002B27K2240/30
Inventor 毛克升
Owner 福建省顺昌县升升木业有限公司
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