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Flame retardant polystyrene foam plate and preparation method thereof

A polystyrene foam, flame retardant material technology, applied in the direction of coating, can solve the problems of low flame retardant efficiency, single flame retardant mechanism, collapse and so on

Inactive Publication Date: 2017-12-01
上饶市聚微星科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inorganic flame retardant materials used are glass microspheres and calcium carbonate. These inorganic materials only have an isolation effect, the flame retardant mechanism is single, and the flame retardant efficiency is low. After burning, the benzene board is easy to shrink and collapse.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 A kind of flame retardant material

[0020] A flame retardant material, the components by weight are: 30 parts of magnesium hydroxide, 5 parts of alunite expansion agent, 1 part of flocculant, 0.5 parts of sodium lauryl sulfate surfactant, 10 parts of organically modified montmorillonite ( particle size 800 mesh), 10 parts of organically modified boron oxide (particle size 800 mesh), 40 parts of water glass, the flocculant is obtained by graft copolymerization of carboxymethyl chitosan and polyacrylamide, wherein the The mass fraction of chitosan is 30%. Add the above-mentioned materials into a closed mixer and stir for 10 minutes, and then stand still for 30 minutes to obtain the flame retardant system of the present invention.

Embodiment 2

[0021] Embodiment 2 A kind of flame-retardant polystyrene foam board

[0022] A kind of flame-retardant polystyrene foam board, it is prepared by following method:

[0023] a) The polystyrene foam board is put into the mould, and a kind of flame retardant material described in embodiment 1 is injected into the mould, uniformly infiltrated from the top of the polystyrene foam board and solidified gradually for 3min;

[0024] b) Take the polystyrene foam board out of the mold and dry it at 90°C for 60 minutes;

[0025] The particle size of the polystyrene foam board particles is 4-6mm, and the weight ratio of the polystyrene particles to the one flame retardant material is 1:4.

Embodiment 3

[0026] Embodiment 3 A kind of flame retardant material

[0027] A flame retardant material, the components by weight are: 40 parts of magnesium hydroxide, 7 parts of alunite expansion agent, 1.5 parts of flocculant, 1.5 parts of sodium lauryl sulfate surfactant, 15 parts of organically modified montmorillonite ( particle size of 1000 mesh), 20 parts of organically modified boron oxide (particle size of 1500 mesh), 50 parts of water glass, the flocculant is obtained by graft copolymerization of carboxymethyl chitosan and polyacrylamide, wherein the The mass fraction of chitosan is 35%. Add the above-mentioned materials into a closed mixer and stir for 10 minutes, and then stand still for 30 minutes to obtain the flame retardant system of the present invention.

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PUM

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Abstract

The invention discloses a flame retardant polystyrene foam plate which is characterized in that a polystyrene foam plate is coated with a flame retardant material, and the flame retardant material penetrates to the surfaces of polystyrene particles through micropores in the polystyrene foam plate. The flame retardant material contains the following materials in parts by weight: 40-50 parts of magnesium hydroxide, 5-7 parts of an expanding agent, 2 parts of a flocculating agent, 0.5-1.5 parts of a surface active agent, 15-20 parts of an organic modified montmorillonite and 10-15 parts of organic modified boron oxide. The flocculating agent is prepared through graft copolymerization reaction of carboxymethyl chitosan and polyacrylamide, wherein the percentage of the chitosan is 35%; the polystyrene particles are coated with a layer of flame retardant material; the weight ratio of the polystyrene particles to the flame retardant material is 1 to (4-10); the combusted polystyrene plate is wholly complete in structure, and shrinkage and collapse do not exist.

Description

technical field [0001] The invention relates to the technical field of building insulation materials, in particular to a halogen-free flame-retardant polystyrene foam insulation board and a manufacturing method thereof. Background technique [0002] Polystyrene foam board (also known as EPS board) is widely used as a building insulation material because of its high strength, long durability, good thermal insulation performance, low cost, simple construction, and convenient maintenance. However, polystyrene material itself is a flammable polymer material with short ignition time, high heat release rate, and a large amount of toxic gas and smoke will be released during combustion. The traditional use of halogen-containing flame retardant materials further aggravates the release of toxic gases and smoke. Therefore, it is of great significance to prepare halogen-free flame-retardant EPS boards to effectively prevent fires and reduce fire hazards. [0003] In order to improve t...

Claims

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Application Information

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IPC IPC(8): C04B28/26C08J9/36C08L25/06C04B111/28
CPCC04B28/26C04B2111/00551C04B2111/28C08J9/36C08J2325/06C08J2451/02C04B22/066C04B22/142C04B24/38C04B24/287C04B2103/402C04B14/104C04B14/30C04B20/008C04B22/064C04B22/14
Inventor 张红轻应忠
Owner 上饶市聚微星科技有限公司