Preparation method of high-efficiency composite wood fire retardant

A compound type, flame retardant technology, applied in wood treatment, impregnated wood, wood impregnation, etc., can solve the problems of poor flame retardant and smoke suppression effects, unsatisfactory compatibility, dripping, etc., to achieve good flame retardant Combustion synergistic effect, mechanical performance improvement, and the effect of reducing combustion speed

Inactive Publication Date: 2020-06-19
安徽智晟通讯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned wood flame retardant uses phosphate as a flame-retardant material. In actual use, there are many problems such as high volatility, poor heat resistance, unsatisfactory compatibility with wood, and dripping during combustion. The flame-retardant and smoke-suppressing effect not good

Method used

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  • Preparation method of high-efficiency composite wood fire retardant
  • Preparation method of high-efficiency composite wood fire retardant
  • Preparation method of high-efficiency composite wood fire retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a high-efficiency composite wood flame retardant is: cetyltrimethylammonium bromide, sodium dodecylsulfonate, polystyrene-b-polyacrylic acid in a weight ratio of 5:5:1 The composite template agent was added to a solution of water, diethyl ether, and ethanol at a mass ratio of 5:1:4, stirred and dissolved, and then NaOH solution with a mass concentration of 33% was added, and after stirring for 15 minutes, tetrasilicic acid was added dropwise. Ethyl ester, after reacting at room temperature for 10 hours, transferred to a polytetrafluoroethylene bottle, placed in a water bath at 85°C for 28 hours, filtered, washed with water until neutral, then rinsed with acetone, transferred to a flask and reduced by a rotary evaporator at 35°C dried under pressure to obtain mesoporous SiO 2 ; the mesoporous SiO 2 Add it into deionized water and ultrasonically vibrate to make a suspension, add antimony trichloride into concentrated hydrochloric acid, stir to dis...

Embodiment 2

[0031] A preparation method of a high-efficiency composite wood flame retardant is: cetyltrimethylammonium bromide, sodium dodecylsulfonate, polystyrene-b-polyacrylic acid in a weight ratio of 5:5:1 The composite template agent was added to a solution of water, diethyl ether, and ethanol in a mass ratio of 5:1:4, stirred and dissolved, and then NaOH solution with a mass concentration of 30% was added. After stirring for 10 minutes, tetrasilicic acid was added dropwise. Ethyl ester, after reacting at room temperature for 12 hours, transferred to a polytetrafluoroethylene bottle, placed in a water bath at 88°C and sealed for 26 hours, filtered, washed with water until neutral, then rinsed with acetone, transferred to a flask and reduced to 30°C with a rotary evaporator. dried under pressure to obtain mesoporous SiO 2; the mesoporous SiO 2 Add it into deionized water and ultrasonically vibrate to make a suspension, add antimony trichloride into concentrated hydrochloric acid, st...

Embodiment 3

[0033] A preparation method of a high-efficiency composite wood flame retardant is: cetyltrimethylammonium bromide, sodium dodecylsulfonate, polystyrene-b-polyacrylic acid in a weight ratio of 5:5:1 The composite template agent was added to a solution of water, diethyl ether, and ethanol at a mass ratio of 5:1:4, stirred and dissolved, and then NaOH solution with a mass concentration of 35% was added. After stirring for 20 minutes, tetrasilicic acid was added dropwise. Ethyl ester, after reacting at room temperature for 10 hours, transferred to a polytetrafluoroethylene bottle, placed in a water bath at 85°C for 25 hours, filtered, washed with water until neutral, then rinsed with acetone, transferred to a flask and reduced to 30°C with a rotary evaporator. dried under pressure to obtain mesoporous SiO 2 ; the mesoporous SiO 2 Add it into deionized water and ultrasonically vibrate to make a suspension, add antimony trichloride into concentrated hydrochloric acid, stir to diss...

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Abstract

The invention provides a preparation method of an efficient composite wood fire retardant, and relates to the technical field of fire retardants. The preparation method comprises the following steps:preparing mesoporous SiO2; adding mesoporous SiO2 into deionized water, and carrying out ultrasonic oscillation to prepare a suspension; adding antimony trichloride into concentrated hydrochloric acid, stirring to completely dissolve, adding the suspension in a dropwise manner, continuously stirring for 20-40 minutes after dropwise adding is finished, and filtering; leaching the solid with deionized water three times, adding into ammonia water, boiling, filtering, leaching with deionized water three times, and drying to obtain mesoporous SiO2-Sb2O3; and adding the mesoporous SiO2-Sb2O3 into azinc chloride solution, adding tin tetrachloride into absolute ethyl alcohol, stirring to dissolve the tin tetrachloride, slowly adding the tin tetrachloride into the zinc chloride solution in a dropwise, stirring for 20 to 30 min, then adding a sodium hydroxide solution, carrying out accelerating stirring for 2 to 5 h, standing for 10 to 15 h, filtering, spraying with deionized water to be neutral, then adding into oleic acid, dipping, taking out, and drying. The fire retardant disclosed by the invention is excellent in smoke suppression and flame retardant effect, and the mechanical propertyof wood can be correspondingly improved.

Description

technical field [0001] The invention relates to the technical field of flame retardants, in particular to a preparation method of a high-efficiency composite wood flame retardant. Background technique [0002] The history of fire resistance of wood can be traced back to the early civilization of human beings. To prevent fire, the ancient Romans made warships and built houses from wood impregnated in pools of a mixture of vinegar and lime. As early as 1638, it was also for fire prevention. The pigments used in the scenery of the Italian theater were mixed with lime or gypsum. In 1735, Jonathan Wvld's technology of using a mixture of aluminum sulfate, iron sulfate and borax as a flame retardant was obtained. British patent, in 1821, Guy Lussac completed a systematic study on the application of flame retardants, and then successively discovered that a series of compounds or mixtures containing halogen, phosphorus, nitrogen, sulfur, boron and metals have flame retardant effects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27K3/00B27K3/36B27K3/38
CPCB27K3/005B27K3/36B27K3/38B27K3/52B27K2240/30
Inventor 储成勇
Owner 安徽智晟通讯科技有限公司
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