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Wood fire retardant and preparation method thereof

A fire retardant and wood technology, applied in the direction of wood impregnation, impregnated wood, wood processing equipment, etc., can solve the problems of small influence on strength and unsatisfactory flame retardant effect, achieve low hygroscopicity, increase drug loading rate, acid Alkaline mild effect

Inactive Publication Date: 2013-02-27
东兴市观福古典红木家具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resin-based adhesives can resist loss without affecting the appearance and color, have little effect on the strength of wood, and are corrosion-resistant. The disadvantage is that the flame-retardant effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Formula: phosphoric acid (mass concentration 75%) 10kg, boric acid 10kg, dicyandiamide 10kg, monoethanolamine 0.5kg, add water to 100kg.

[0023] The preparation method is as follows:

[0024] 1) Weigh the formulated amount of phosphoric acid, dicyandiamide, monoethanolamine and water, mix them, and heat and react at 70°C for 1 hour;

[0025] 2) Then add the boric acid in the prescribed amount, mix evenly, cool down, and the product is ready.

Embodiment 2

[0027] Formula: phosphorous acid (80% mass concentration) 30kg, borax 25kg, ammonium sulfate 35kg, diethanolamine 8kg, add water to 100kg.

[0028] The preparation method is as follows:

[0029] 1) Weigh the amount of phosphorus phosphorous acid, ammonium sulfate, diethanolamine and water in the disperser, and heat and react at 120°C for 4 hours;

[0030] 2) Then add the borax in the prescribed amount, mix well, cool down, and you get it.

Embodiment 3

[0032] Formula: 20kg of mixed acid of hypophosphorous acid and metaphosphoric acid (mass concentration is 78%), sodium tetraborate and 20kg, 25kg of dicyandiamide, 4kg of triethanolamine, add water to 100kg.

[0033] The preparation method is as follows:

[0034] 1) Weigh the formulated amount of hypophosphorous acid, metaphosphoric acid, dicyandiamine, triethanolamine and water in a disperser, and heat and react at 70-120°C for 1-4 hours;

[0035] 2) Then add sodium tetraborate in the prescribed amount, mix well, and cool to get ready.

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Abstract

The invention provides a wood fire retardant and a preparation method thereof. The wood fire retardant is prepared by the following raw materials, by weight, 10-35% parts of oxyacid of phosphorus, 10-30% parts of boron type compounds, 10-40% parts of amino type compounds, 0.5-8% parts of surface active agent and the balance water. The preparation method comprises the steps of firstly placing the oxyacid of phosphorus, amino type compounds, the surface active agent and the water into a dispersion machine, performing heating reaction for 1-4 hours at the temperature between 70 and 120 DEG C, then adding the boron type compounds, dissolving and cooling to obtain. The wood fire retardant and the preparation method thereof are reasonable in formula and simple in technology, after a prepared nitrogen-phosphorus-boron composite efficient flame-retardant system containing nitrogen, phosphorus and boron is compounded with the surface active agent, the fire retardant can have good drug loading ratio on wood, and according excellent flame retardant effect can be achieved.

Description

technical field [0001] The invention belongs to the technical field of wood processing or preservation, and mainly relates to a wood flame retardant and a preparation method thereof. Background technique [0002] In the long history of human use, from a traditional building material to a building decoration material, wood has always been favored by people for its unique charm of natural materials. Wood is a kind of polymer material mainly composed of C, H, O and other elements. Its main components are cellulose, hemicellulose, lignin and a small amount of extract. It is not only easy to burn, but also prevents a lot of heat when burning. The average heat energy is 15KJ / kg, which brings great hidden danger to people's life safety. After a wooden structure house is on fire, the temperature can reach 500°C in 5 minutes and 700°C in 10 minutes. For this reason, my country's national standard GB50222-95 "Code for Fire Protection Design of Building Interior Decoration" stipulate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
Inventor 侯佰林
Owner 东兴市观福古典红木家具有限公司
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