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Wood material wood product fire retardant and its treatment method

A flame retardant and wood product technology, applied in the field of flame retardants, can solve the problems of casualties, fire accidents, building damage, etc., and achieve the effect of simple preparation process

Inactive Publication Date: 2005-08-10
成都铁路防火制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the flammability of wood itself, it is very easy to cause fire accidents in case of fire or high temperature, causing damage to buildings, even casualties, and bringing irreparable losses to the country and society. Therefore, in today's increasingly scarce wood resources , flame retardant treatment of wood and wood products is an urgent problem to be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 550 kg of ammonium phosphate, 150 kg of industrial boric acid, 100 kg of ammonium polyphosphate, and 200 kg of sodium phosphate that have passed the quality inspection, and heat the ammonium phosphate and industrial boric acid at 80°C to make the main agent stock solution, and then poly Ammonium phosphate and sodium phosphate are heated and reacted at 90°C to make synergistic liquid, and finally the main agent stock solution and synergistic liquid are fully mixed under the condition of maintaining 80°C to obtain the finished flame retardant.

[0031] The treatment method of this finished flame retardant for wood board flame retardancy is as follows:

[0032] A. Put 20m 3 Put the planks into the treatment tank and close the tank door;

[0033] B. Vacuumize until the vacuum degree is 0.084±0.008MPa, and keep it for 40-90 minutes (depending on the tree species and moisture content of the board);

[0034] C. Inject the flame retardant of the present invention into t...

Embodiment 2

[0039] Weigh 650 kg of diammonium hydrogen phosphate, 100 kg of industrial boric acid, 80 kg of ammonium polyphosphate, and 170 kg of sodium phosphate that have passed the quality inspection, and heat the diammonium hydrogen phosphate and industrial boric acid at 80°C to make the main agent stock solution , and then ammonium polyphosphate and sodium phosphate are heated and reacted at 90°C to make a synergistic liquid, and finally the main agent stock solution and the synergistic liquid are fully mixed under the condition of maintaining 80°C to obtain the finished flame retardant.

[0040] With this finished product fire retardant process wood strip, its treatment method is the same as embodiment 1.

[0041] The combustion performance of the prepared flame-retardant wood strips was tested by the National Fireproof Building Materials Quality Supervision and Inspection Center to reach the flame-retardant B 1 Grade, tested by Sichuan Provincial Forestry Products and Furniture Qua...

Embodiment 3

[0043] Weigh 600 kg of ammonium dihydrogen phosphate, 100 kg of ammonium pentaborate, 100 kg of sodium tripolyphosphate, and 200 kg of disodium hydrogen phosphate that have passed the quality inspection, and heat the ammonium dihydrogen phosphate and ammonium pentaborate at 80°C. Make the main ingredient stock solution, then heat the sodium tripolyphosphate and disodium hydrogen phosphate at 90°C to make a synergistic liquid, and finally mix the main ingredient stock solution and the synergistic liquid at 80°C The finished flame retardant is obtained.

[0044] The flame retardant treatment method of the finished product flame retardant on plywood is as follows:

[0045] A. Put 1000 sheets of plywood into the treatment tank, close the tank door, and vacuum until the vacuum degree is 0.078±0.002MPa, and keep it for 10-20 minutes;

[0046] B. Inject the flame retardant of the present invention into the above-mentioned treatment tank under the vacuum state at room temperature, pr...

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PUM

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Abstract

A flame-retarding agent for wood or wooden products is prepared from amino phosphate, boron compound, polyphosphate and phosphate through thermal reaction between amino phosphate and boron compound, thermal reaction between polyphosphate and phosphate, and preparing finished product. It is applied to wood or wooden products through loading wood or wooden products in the treating tank, vacuumizing, filtering said flame-retarding agent, pressurizing, releasing pressure, discharging flame-retarding agent, and repeating above said steps 1-3 times.

Description

technical field [0001] The invention relates to a fire retardant, in particular, the invention relates to a wood material fire retardant. At the same time, the invention also relates to a method for treating wood and wood products with the flame retardant. Background technique [0002] Wood is a natural biological material and an important raw material for human survival and development. It is widely used in industrial and civil construction, furniture, decoration and other industries. It is closely related to human life. Due to the flammability of wood itself, it is very easy to cause fire accidents in case of fire or high temperature, causing damage to buildings, even casualties, and bringing irreparable losses to the country and society. Therefore, in today's increasingly scarce wood resources , the flame retardant treatment of wood and wood products is an urgent problem to be solved. Contents of the invention [0003] In order to overcome the flammability of wood and...

Claims

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Application Information

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IPC IPC(8): B27K3/02B27K3/08B27K3/32B27K3/52
Inventor 张德阳张国玮杨培东
Owner 成都铁路防火制品厂
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