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A kind of fireproof wood and preparation method thereof

A wood and protective coating technology, applied in wood impregnation, wood treatment, impregnated wood, etc., can solve problems such as poor fire-retardant effect of fire-resistant wood, improve strength and barrier effect, enhance effectiveness, reduce migration and volatilization. Effect

Active Publication Date: 2019-11-26
淮安市中科同创工程技术有限公司
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of fire-resistant wood and its preparation method in view of the poor flame-retardant effect of fire-resistant wood at present

Method used

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preparation example Construction

[0026] A method for preparing fireproof wood, comprising the steps of:

[0027] According to the number of parts by mass, take 300~400 parts of pine wood powder, 80~90 parts of loading additives, 40~50 parts of fireproof admixture, 30~40 parts of sepiolite, grind and pulverize, pour into the mold to form a blank, At hot pressing temperature 150~160℃, vacuum degree 0.1MPa, keep vacuum for 10~20min, then pressurize at 0.6MPa for 20~30min, press into fireproof wood substrate, take protective coating according to mass ratio 2~4 : Add decamethylcyclopentasiloxane at 8~10 to get a mixed solution, apply the mixed solution on the surface of the fireproof wood substrate, and cure it at 60~70°C for 1~3h to get the fireproof wood.

[0028] Loading additive: Take cetyltrimethylammonium bromide and add deionized water at a mass ratio of 1:80, stir and mix for 20 minutes, then add ferric chloride with 2% deionized water quality, and stir at 25~30°C Mix for 1 hour, adjust the pH to 9.5 with...

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Abstract

The invention discloses fireproof wood and a preparation method thereof, and belongs to the field of building materials. According to the method, cetyl trimethyl ammonium bromide is used as a templateagent, ethyl orthosilicate is added, modifying is carried out by using ferric chloride to obtain a mesoporous substance, poisonous gases such as CO and the like is carried out with catalytic oxidation to convert into carbon dioxide in a flame-retardant process, so that a carbon layer of wood is stabilized; melamine and formaldehyde are taken as main raw materials to form an outer-layer wrapping material, ammonium borate and diammonium hydrogen phosphate are added for wrapping, so that the compatibility between the outer-layer wrapping material and the wood cellulose is improved, the outer-layer wrapping material can enter the gaps among cellulose cells, and migration and volatilization of the ammonium borate and the diammonium hydrogen phosphate can be reduced; and a Si-O-Si net structureformed after decomposition of adding phenyltrimethoxysilane, methyl triethoxysilane and the like increases the thermal stability of the surface carbon layer, the viscosity wraps around the gas generated in a high-temperature cracking process, the gas is prevented from leaking, so that the fireproof and flame-retardant performance is further improved. According to the method, the problem that theflame retardant effect of an existing fireproof wood is poor is solved.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a fireproof wood and a preparation method thereof. Background technique [0002] Wood is a naturally renewable structural engineering material. It has been widely used by humans as a building material since ancient times. Wood is also a hazardous material due to its flammability. In addition, wood can spontaneously combust under high temperature conditions. When the wood is treated with a fire retardant (referred to as fire retardant wood), it can effectively slow down the burning speed, control the further spread of the flame, and greatly reduce the flammability of the wood. But fire-resistant wood itself is not a non-combustible material. Moreover, the fire-resistant wood commonly used in the market is not waterproof, and may be attacked by corrosive bacteria, mold and insects. [0003] Since most commonly used wood fire protection products are hygroscopic, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/52
CPCB27K3/52B27K2240/30
Inventor 黄林宁周俊年张永伟张方略高金怀刘茂龙路芸
Owner 淮安市中科同创工程技术有限公司
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