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High-stability wood flame retardant

A flame retardant, wood technology, applied in the field of flame retardants, can solve the problems of affecting the mechanical properties of wood, poor flame retardant effect, etc., and achieve the effect of improving energy dispersion, tensile resistance, and preventing uneven dispersion.

Inactive Publication Date: 2019-05-31
王金华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-stable wood flame retardant for the problems that the commonly used wood flame retardants have poor flame retardant effect and will affect the mechanical properties of wood.

Method used

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  • High-stability wood flame retardant

Examples

Experimental program
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Effect test

preparation example Construction

[0027] The preparation method of composite flame retardant component A, comprises the steps:

[0028] (1) Mix ferrous sulfate, sodium hypochlorite and water at 30~40°C according to the mass ratio of 7:1~3:25~35, and stir magnetically at 400~700r / min for 35~60min to obtain the mixture. Take the mixture Add titanium sulfate and sodium dihydrogen phosphate at a mass ratio of 8-12:1:1 and mix, heat up to 60-75°C, keep warm for 2-4 hours to obtain a matrix, take the matrix and add reagent A at a mass ratio of 15:1-4 Mix evenly to obtain an inorganic treatment product;

[0029] (2) According to the mass ratio of 4:1~3:15~25:0.1, take 2-vinyl-4,6-diamino-1,3,5-triazine, N,N-dimethylacrylamide, di Mix methyl sulfoxide and polyethylene glycol diacrylate in the reactor, stir magnetically at 500~800r / min for 30~60min, add TiO with 8~15% polyethylene glycol diacrylate mass 2 , 3-6 times the weight of polyethylene glycol diacrylate additives, 2-hydroxy-4-(2-hydroxyethoxy)-2-methylpropiop...

Embodiment 1

[0036] Reagent A: Mix dicyandiamide, boric acid, and 70% phosphoric acid solution at a mass ratio of 3:1:20 at 85°C, and stir magnetically at 500 r / min for 35 minutes to obtain reagent A.

[0037] Reagent B: Mix xylene and diethylenetriamine at a volume ratio of 3:2 to obtain Reagent B.

[0038] Foaming agent: Mix petroleum ether and calcium bicarbonate at a mass ratio of 2:1 to obtain a foaming agent.

[0039] Dispersant: Mix dodecyldimethyl betaine and cetyltrimethylammonium bromide at a mass ratio of 5:2 to obtain a dispersant.

[0040] Cross-linking agent: at 2°C, mix polyethylene glycol, triethylamine, and methylene chloride in a reaction kettle at a mass ratio of 1:3:12, stir magnetically at 400r / min for 35min, and then add polyethylene glycol with a mass of 6 % acryloyl chloride was stirred evenly, and stood at room temperature for 20 hours, then filtered with suction, and the filtrate was mixed with diethyl ether at a mass ratio of 7:3, filtered with suction, and the ...

Embodiment 2

[0052] Reagent A: Mix dicyandiamide, boric acid, and 70% phosphoric acid solution at a mass ratio of 3:1:35 at 95°C, and stir magnetically at 800r / min for 60 minutes to obtain reagent A.

[0053] Reagent B: Mix xylene and diethylenetriamine at a volume ratio of 7:2 to obtain Reagent B.

[0054] Foaming agent: Mix petroleum ether and calcium bicarbonate at a mass ratio of 5:1 to obtain a foaming agent.

[0055] Dispersant: Mix dodecyldimethyl betaine and cetyltrimethylammonium bromide at a mass ratio of 8:2 to obtain a dispersant.

[0056] Cross-linking agent: at 5°C, mix polyethylene glycol, triethylamine, and methylene chloride in a reaction kettle at a mass ratio of 1:5:12, stir magnetically at 700r / min for 60min, and then add polyethylene glycol with a mass of 10 % acryloyl chloride was stirred evenly, left standing at room temperature for 24 hours, suction filtered, the filtrate was mixed with diethyl ether at a mass ratio of 12:3, suction filtered, and the filter residue...

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Abstract

The invention belongs to the technical field of flame retardants and discloses a high-stability wood flame retardant. By an inorganic treatment substance, nonuniform dispersion of flame-retardant effective components is prevented, and after action on wood, mechanical properties of the wood can be improved through combination with hydroxyl in wood components; under the action of CO2, reversible volume and modulus changes can be realized, and carbon dioxide affinity of a system is improved; by CO2 release, a memory effect of the system is achieved, excellent flame-retardant and anti-stretching effects are realized, and combined improvement of mechanical properties of the wood is realized. Due to amphipathicity of an additive, the vesicle cavity size of the system is increased, contact effects of components are enhanced, and high stability can be achieved under the action of a colloid stable composite structure of a composite flame-retardant component A. By the high-stability wood flame retardant, problems of poor flame retardation effects of existing common wood flame retardants and influences on mechanical properties of the wood are solved.

Description

technical field [0001] The invention relates to the technical field of flame retardants, in particular to a high-stable wood flame retardant. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, wood is widely used due to its excellent biological and environmental characteristics. The degree of lignification of home furniture, floors and other decorations is getting higher and higher. Wood is easy to burn due to its own characteristics. And cause dense smoke, etc., so it is necessary to treat the wood with flame retardant and smoke suppression to reduce fire hazards. Fire hazards and threats are increasing, which greatly promotes the improvement of people's awareness of fire safety, especially the fire protection and safety protection of antique buildings and a small number of wooden structures. The number of precious and large-diameter timber is decreasing, so humans realize the comprehensive utiliza...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27K3/00
Inventor 王金华
Owner 王金华
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