Preparation method of flame-retardant core-board

A blockboard and flame retardant technology, applied in the direction of pressure impregnation, etc., can solve the problems of hindering fire fighting and personnel evacuation, corroding instruments and equipment, and carcinogens, so as to reduce formaldehyde emissions, improve flame retardancy, and flame retardancy powerful effect

Inactive Publication Date: 2011-09-28
上海荷雨木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, organic halide flame retardants also have disadvantages: in the event of a fire, the incomplete combustion of halogenated flame retardants will produce a large amount of carcinogens, and the materials using halogenated flame retardants will produce a lot of smoke and fire when they are burned again. Toxic and corrosive gas, which hinders firefighting and evacuation, corrodes instruments and equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The present embodiment provides a kind of preparation method of flame retardant blockboard, comprises the following steps:

[0022] The first step, prepare core strip;

[0023] The core strip accounts for more than 60% of the blockboard volume, which has a lot to do with the quality of the blockboard. It is better to use the tree species for making core strips with soft material, uniform wood structure, small deformation, small dry shrinkage, and small difference in wood chord and radial dry shrinkage, easy to process, and relatively small in size and shape of core strips. Accurate, the flatness of the finished board is good, the board is not easy to deform, and the weight is light, which is beneficial to use. Generally, the moisture content of core strips is 8%--12%, the air in the north can be dry and can be 6%--12%, and the air humidity in the south is high, but it should not exceed 15%.

[0024] Core strip thickness: the thickness of the wood core board plus the p...

Embodiment 2

[0037] The present embodiment provides a kind of preparation method of flame retardant blockboard, comprises the following steps:

[0038] The first step, prepare core strip;

[0039] The second step is to inject or immerse the water-based flame retardant solution into the core strip by using the secondary vacuum pumping / pressurization injection flame retardant technology; the flame retardant can be more fully immersed into the interior of the core strip to improve the resistance of the core strip. Flame retardant, the flame retardant is non-halogen, formaldehyde-free, water-based environmentally friendly composite flame retardant with strong flame retardant performance, smoke suppression and mildew resistance.

[0040] The weight ratio of the water-based flame retardant is: 61% phosphate, 15% boric acid, 24% NH 3 . The raw materials are put into a mixer, and after being fully mixed, a blockboard flame retardant is formed, and water is added to make a water-based flame retar...

Embodiment 3

[0047] The present embodiment provides a kind of preparation method of flame retardant blockboard, comprises the following steps:

[0048] The first step, prepare core strip;

[0049] The second step is to inject or immerse the water-based flame retardant solution into the core strip by using the secondary vacuum pumping / pressurization injection flame retardant technology; the flame retardant can be more fully immersed into the interior of the core strip to improve the resistance of the core strip. Flame retardant, the flame retardant is non-halogen, formaldehyde-free, water-based environmentally friendly composite flame retardant with strong flame retardant performance, smoke suppression and mildew resistance.

[0050] The weight ratio of the water-based flame retardant is: 58% phosphate, 21% boric acid, 21% NH 3 . The raw materials are put into a mixer and fully mixed to form a blockboard flame retardant, and water is added to make a water-based flame retardant solution wi...

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PUM

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Abstract

The invention discloses a preparation method of a flame-retardant core-board, comprising the following steps of: a first step, preparing a core bar of the core-board; a second step, injecting or infusing a water-based flame-retardant agent solution into the core bar through a secondary vacuumizing/pressurizing flame-retardant agent injection technology; a third step, preparing a block board with the core bar obtained in the second step; a fourth step, performing surface flame-retardant treatment on a veneer; a fifth step, assembling the veneer processed in the fourth step with the block board; a sixth step, compressing the obtained assembly with adhesive, wherein the used adhesive is a biological glue; and performing final trimming and sanding to get the finished product of the core-board. By using the preparation method of the flame-retardant core-board, the flame-retardant performance of the core bar of the block board is improved, the flame-retardant agent is a non-halogen material, and the used adhesive is the biological glue, so that formaldehyde emission is greatly reduced, and the board with very excellent flame-retardant performance and environmental performance can be prepared.

Description

technical field [0001] The invention relates to a blockboard in the technical field of building materials, in particular to a method for preparing a flame-retardant blockboard. Background technique [0002] Blockboard, commonly known as core board, is a kind of plywood with a solid wood core, which is widely used to make load-bearing and decorative furniture such as desks, beds, cabinets, cabinet furniture, door and window covers, heating covers, etc. Because blockboards are widely used and are flammable, blockboards have been treated with flame-retardant treatment in many occasions, that is, flame-retardant blockboards, and flame-retardant blockboards (flame-retardant large core boards) are made of high-quality logs The veneer is used as raw material, and it is processed by flame retardant treatment, drying, glue mixing, cold pressing, hot pressing and other production processes. [0003] Flame-retardant blockboards use organic halogenated flame retardants, which have the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08
Inventor 林涛
Owner 上海荷雨木业有限公司
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