Water-soluble wood fire retardant and preparation method thereof

A flame retardant, water-soluble technology, applied in the field of water-soluble wood flame retardant and its preparation, can solve the problems of flame retardant migration, moisture absorption, etc., and achieve the effect of reducing surface tension, simple process and good effect

Inactive Publication Date: 2015-05-27
高天红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing wood flame retardants are phosphorus-nitrogen-boron systems, which are generally subject to problems such as flame retardant migration and moisture absorption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A water-soluble wood flame retardant, its components are proportioned by mass percentage: phosphoric acid 38%, dicyandiamide 30%, boric acid and borax mixture 20%, aluminum chloride 10%, diethanolamine 2%, wherein the The mass concentration of phosphoric acid is 75% to 85%, and the mass ratio of boric acid and borax mixture is 1:1.

[0019] Preparation method: (1), weigh each component according to the mass ratio; (2), add aluminum chloride to the aqueous solution prepared by phosphoric acid, heat to 70°C-120°C for 30-60 minutes, then cool to room temperature, Obtain solution A; (3), add boric acid and borax mixture to the aqueous solution prepared by dicyandiamide, heat to 25°C-60°C for 15-30 minutes, and then cool to room temperature to obtain solution B; (4), put Mix solution A of step (2) and solution B of step (3), add diethanolamine and mix well, keep at 70°C-90°C for 15-30 minutes, cool, filter, crystallize, dry, pulverize, After sieving, the present invention i...

Embodiment 2

[0021] A water-soluble wood flame retardant, its components are proportioned by mass percentage: ammonium polyphosphate 50%, melamine 34%, sodium tetraborate 10%, aluminum chloride 5%, sodium dodecylbenzene sulfonate 1 %.

[0022] Preparation method: (1) Weigh each component according to the mass ratio; (2) Add aluminum chloride to the aqueous solution prepared by ammonium polyphosphate, heat to 70°C-120°C for 30-60 minutes, then cool to At room temperature, solution A is obtained; (3), sodium tetraborate is added to the aqueous solution prepared by melamine, heated to 25°C-60°C for 15-30 minutes, and then cooled to room temperature, to obtain solution B; (4), step Mix solution A of (2) and solution B of step (3), add sodium dodecylbenzenesulfonate and mix well, keep at 70°C-90°C for 15-30 minutes, cool, filter, crystallize, After drying, crushing and sieving, the present invention is obtained.

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PUM

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Abstract

The invention discloses a water-soluble wood fire retardant and a preparation method thereof. The water-soluble wood fire retardant comprises, by mass, 30-50% of a phosphorus-containing compound, 20-40% of an amino compound, 10-30% of a boron-containing compound, 5-15% of an aluminum salt, and 0.5-3% of a surfactant. The water-soluble wood fire retardant contains high content of P, N, B and Al elements, is an efficient halogen-free fire retardation system formed by compounding P, N, B, Al and the surfactant, fully performs the fire retardant soup surface tension reduction, infiltrating depth increase and drug load rate increase of the surfactant, can be easily dissolved in water, and can be directly processed to prepare the above fire retardant soup in order to realize wood fire retardation drug load treatment. The method is simple, and the water-soluble wood fire retardant has the advantages of good wood fire retardation treatment effect, no migration or moisture absorption phenomenon, low cost, corrosion and insect resistance of wood, and dimensional stability.

Description

technical field [0001] The invention relates to the technical field of wood flame retardants, in particular to a water-soluble wood flame retardant and a preparation method thereof. Background technique [0002] Wood is widely used in construction, furniture and other fields due to its good visual properties, tactile properties, temperature regulation function and good mechanical properties. However, wood is a combustible material, which can easily cause fire, which may cause huge casualties and property losses. With the improvement of the public's awareness of fire safety and the gradual improvement of my country's fire protection policies, regulations, and standards, wood flame retardancy has become increasingly important, and the market is in urgent need of good wood flame retardants. Unlike synthetic polymers, wood does not dissolve or melt under normal processing conditions, which determines that the impregnation method is often used for its flame retardant treatment, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
CPCB27K3/52
Inventor 不公告发明人
Owner 高天红
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