Wood composite flame retardant and preparation method thereof

A composite flame retardant and wood technology, applied in wood treatment, impregnated wood, wood impregnation, etc., can solve the problems of poor loss resistance and aging resistance, great influence on the mechanical properties of plywood, and insignificant flame retardant effect, etc. Good combustion effect, smoke suppression, friendly environment, good smoke suppression effect

Inactive Publication Date: 2017-04-05
防城港市林木良种繁育中心苗圃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although flame retardants are widely used in plywood, the existing flame retardants still have the following problems: the flame retardant effect is not obvious, the cost is high, the loss resistance and aging resistance are poor, and the mechanical properties of plywood are greatly affected.

Method used

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  • Wood composite flame retardant and preparation method thereof
  • Wood composite flame retardant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A wood composite flame retardant comprises the following raw materials in parts by weight: 25 parts of melamine, 5 parts of sodium dihydrogen phosphate, 0.1 part of sodium hydroxide, 30 parts of borax and 30 parts of boric acid.

[0018] The preparation method of the wood composite flame retardant comprises the following steps: weighing 25 parts of melamine, 5 parts of sodium dihydrogen phosphate, 0.1 part of sodium hydroxide, 30 parts of borax and 30 parts of boric acid, and adding them into a pulverizer to pulverize to 120 purpose, then mix the components, and finally add water to prepare a wood composite flame retardant solution with a mass concentration of 10%.

[0019] The application of described wood composite flame retardant in the production of flame retardant fiberboard comprises the following production steps:

[0020] (1) Select a veneer with few knots and few defects, clean the surface, dry the veneer to a moisture content of 8%, then put it into a wood com...

Embodiment 2

[0025] A wood composite flame retardant, comprising the following raw materials in parts by weight: 35 parts of melamine, 15 parts of sodium dihydrogen phosphate, 0.5 parts of sodium hydroxide, 40 parts of borax and 40 parts of boric acid.

[0026] The preparation method of the wood composite flame retardant comprises the following steps: weighing 35 parts of melamine, 15 parts of sodium dihydrogen phosphate, 0.5 parts of sodium hydroxide, 40 parts of borax and 40 parts of boric acid, respectively adding them into a pulverizer and pulverizing to 150 parts purpose, then mix the components, and finally add water to prepare a wood composite flame retardant solution with a mass concentration of 15%.

[0027] The application of described wood composite flame retardant in the production of flame retardant fiberboard comprises the following production steps:

[0028] (1) Select a veneer with few knots and few defects, clean the surface, dry the veneer to a moisture content of 10%, an...

Embodiment 3

[0033] A wood composite flame retardant comprises the following raw materials in parts by weight: 30 parts of melamine, 10 parts of sodium dihydrogen phosphate, 0.3 parts of sodium hydroxide, 35 parts of borax and 35 parts of boric acid.

[0034] The preparation method of the wood composite flame retardant comprises the following steps: weighing 30 parts of melamine, 10 parts of sodium dihydrogen phosphate, 0.3 parts of sodium hydroxide, 35 parts of borax and 35 parts of boric acid, respectively adding them into a pulverizer to crush to 140 purpose, then mix the components, and finally add water to prepare a wood composite flame retardant solution with a mass concentration of 12%.

[0035] The application of described wood composite flame retardant in the production of flame retardant fiberboard comprises the following production steps:

[0036](1) Select a veneer with few knots and few defects, clean the surface, dry the veneer to a moisture content of 9%, and then soak it in...

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Abstract

The invention relates to the technical field of wood processing and particularly relates to a wood composite flame retardant and a preparation method thereof, and an application thereof in production of flame retarding plywood. The wood composite flame retardant includes, by weight, 25-35 parts of melamine, 5-15 parts of sodium dihydrogen phosphate, 0.1-0.5 parts of sodium hydroxide, 30-40 parts of borax and 30-40 parts of boric acid. The raw materials of the wood composite flame retardant have synergistic flame retarding effects, so that the flame retardant is good in flame retarding effect, is low-toxicity, has good smoke inhibition property and is environment-friendly, and is also low in cost. The flame retarding plywood produced from the flame retardant is significantly improved in flame retarding performance, which can reach C-level fireproofing grade in national standard. Bonding strength and maximum fracture load of the plywood are approximated to plywood produced without the flame retardant.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a wood composite fire retardant and its preparation method and application. Background technique [0002] In recent years, due to the excessive use of wood by humans, the number of various precious and large-diameter woods has become less and less. Therefore, humans have realized the comprehensive utilization of wood in various ways. The birth of wood-based panels marks the beginning of the modern era of wood processing, which makes the process develop from simply changing the shape of wood to improving the properties of wood. People plant artificial forests and make various wood-based panels from the wood cut from the artificial forests, so as to meet people's needs for precious wood and large-diameter wood. Making wood into wood-based panels maintains the characteristics of lightness and good mechanical properties of logs, and at the same time has large format, good st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27D1/04
CPCB27K3/52B27D1/04B27K2240/30
Inventor 苏学鹏李宏春
Owner 防城港市林木良种繁育中心苗圃
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