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Preparation method of environment-friendly flame-retardant fiberboard

A flame-retardant fiberboard technology, applied in the field of decorative materials, can solve problems such as hidden dangers, flammability of fiberboard, and safety, and achieve the effects of light weight, improved flame-retardant performance, and good barrier effect

Inactive Publication Date: 2021-11-02
深圳市奥科杰环保材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the flammability and potential safety hazards of the original ecological wood material fiberboard, a method for preparing an environmentally friendly flame-retardant fiberboard is provided

Method used

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  • Preparation method of environment-friendly flame-retardant fiberboard

Examples

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Effect test

example 1

[0027] (1) In parts by weight, the following raw materials are included: 40 parts of diatomite, 1.0 parts of lanthanum nitrate, 2.5 parts of zinc sulfate, 100 parts of magnesium nitrate, 45 parts of aluminum nitrate, and 350 parts of deionized water;

[0028] (2) Take diatomite, completely immerse in water, add 10% lanthanum nitrate by mass fraction, 15% zinc sulfate by mass fraction, stir evenly, filter, dry, calcinate, grind, and sieve to obtain 400-mesh powder;

[0029] (3) Add magnesium nitrate and aluminum nitrate to deionized water to dissolve, then add the above-mentioned 450-mesh powder and urea, stir well, then adjust the pH to 11.5 with a mass fraction of 5% sodium hydroxide solution, precipitate, stand still, and filter , dried, and then transferred to a muffle furnace, fed with nitrogen, programmed to heat up to 550°C, and calcined for 3.5 hours to obtain an inorganic flame-retardant material;

[0030] (4) Mix the inorganic flame retardant material and water accord...

example 2

[0034] (1) In parts by weight, the following raw materials are included: 30 parts of diatomite, 0.5 parts of lanthanum nitrate, 2 parts of zinc sulfate, and 300 parts of deionized water;

[0035] (2) Take diatomite, completely immerse in water, add 10% lanthanum nitrate by mass fraction, 15% zinc sulfate by mass fraction, stir evenly, filter, dry, calcinate, grind, and sieve to obtain 300-mesh powder;

[0036] (3) Add the above-mentioned 300-mesh powder into deionized water, urea, stir evenly, then adjust the pH to 11 with a mass fraction of 5% sodium hydroxide solution, precipitate, stand still, filter, dry, and then transfer to a muffle furnace In the process, nitrogen gas was introduced, the temperature was programmed to rise to 500°C, and calcined for 3 hours to obtain an inorganic flame-retardant material;

[0037] (4) Mix the inorganic flame retardant material and water according to the mass ratio of 1:50, inject it into a 0.5MPa pressure reactor, and raise the temperatu...

example 3

[0041](1) In parts by weight, the following raw materials are included: 50 parts of diatomite, 1.5 parts of lanthanum nitrate, 3 parts of zinc sulfate, 120 parts of magnesium nitrate, 50 parts of aluminum nitrate, and 400 parts of deionized water;

[0042] (2) Take diatomite, completely immerse in water, add 10% lanthanum nitrate by mass fraction, 15% zinc sulfate by mass fraction, stir evenly, filter, dry, calcinate, grind, and sieve to obtain 500-mesh powder;

[0043] (3) Add magnesium nitrate and aluminum nitrate to deionized water to dissolve, then add the above-mentioned 500-mesh powder and urea, stir well, then adjust the pH to 12 with a mass fraction of 5% sodium hydroxide solution, precipitate, stand still, and filter , dried, and then transferred to a muffle furnace, fed with nitrogen, programmed to heat up to 600°C, and calcined for 4 hours to obtain an inorganic flame-retardant material;

[0044] (4) Mix the inorganic flame retardant material and water according to ...

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Abstract

The invention relates to a preparation method of an environment-friendly flame-retardant fiberboard, and belongs to the technical field of decorative materials. Magnesium nitrate and aluminum nitrate are used as raw materials, rare earth and diatomite are doped, diatomite with magnesium-aluminum hydroxide of a layered structure deposited is prepared through a coprecipitation method, the layered structure is bridged through the diatomite, the blocking effect is achieved, holes in the surface of a carbon layer formed in the combustion process are reduced, the better blocking effect is achieved, further entry and release of combustible gas and oxygen are inhibited, and at the same time, cooperation with the rare earth elements is adopted to achieve an effective smoke suppression effect, cooperation with a flame retardant is adopted to achieve flame retardance, the flame retardance of the fiberboard is effectively improved, the effects of reducing smoke and heat release in the combustion process are achieved, and meanwhile, the effects of dehumidification, deodorization, indoor air purification and the like by utilizing the diatomite are achieved. Diatomite is used as an additive to manufacture the fiberboard which is light in weight, flame-retardant and capable of reducing indoor toxic gas, and the artificial board is endowed with new functions of flame retardance, low formaldehyde release and capability of adjusting the indoor environment.

Description

technical field [0001] The invention relates to a preparation method of an environment-friendly flame-retardant fiberboard, which belongs to the technical field of decorative materials. Background technique [0002] With the rapid development of society, human needs are getting higher and higher, and more and more wood-based panels have come to people, but it has brought about serious problems such as the increasing scarcity of forest resources and the release of formaldehyde from panels. At the same time, as Wooden materials have unavoidable flammability, and the ensuing fire accidents seriously endanger personal safety. [0003] As wood materials, fiberboard and wood have the same flame retardant mechanism, which is achieved by adding flame retardants or some non-combustible substances, that is, by chemical or physical methods, reducing the conditions required for wood materials to burn and hindering it. The combustion process, so as to achieve the purpose of flame retard...

Claims

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Application Information

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IPC IPC(8): B27K3/52B27K3/02B27K3/18B27K3/20B27K3/22B27K3/26B27K3/32B27K3/36B27K5/00B27K5/04
Inventor 陈文涛
Owner 深圳市奥科杰环保材料科技有限公司
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