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A class A flame-retardant modified polystyrene board and preparation method thereof

A polystyrene board and modification technology, which is applied in the field of flame-retardant building materials, can solve the problems of building energy saving not up to standard, and achieve the effect of changing fire performance and reasonable price

Inactive Publication Date: 2016-05-04
HEFEI HUIZHONG INTPROP MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the release of Document No. 65, a large number of inorganic materials have been applied to the walls in China's thermal insulation market. Although the problem of fire prevention has been solved, it has caused a bigger problem: building energy efficiency is not up to standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The Class A flame-retardant modified polystyrene board of this embodiment, by weight, includes 20 parts of flame-retardant polystyrene resin, 0.4 parts of foaming agent, 40 parts of talcum powder, 6 parts of aluminum hydroxide, and 2 parts of surfactant 3 parts, 3 parts of curing agent. The curing agent is a lithium-based curing agent

[0033] The preparation method of Class A flame-retardant modified polystyrene board comprises the following steps:

[0034] (1) Flame-retardant polystyrene foam particles are obtained by expanding and foaming flame-retardant polystyrene resin and foaming agent at a steam pressure of 0.3 bar at 102°C;

[0035] (2) Add the surfactant-modified fireproof coating material into the flame-retardant polystyrene foam particles, then add the curing agent, and stir at 60°C for 15 minutes to form crystals that evenly wrap the fireproof material on the surface ; The fireproof coating material is based on talcum powder of 325-425 mesh, adding 15% na...

Embodiment 2

[0038] The Class A flame-retardant modified polystyrene board of this embodiment, by weight, includes 25 parts of flame-retardant polystyrene resin, 0.5 parts of foaming agent, 50 parts of talcum powder, 10 parts of aluminum hydroxide, and 4 parts of surfactant parts, curing agent 5 parts. The curing agent is a lithium-based curing agent.

[0039] A preparation method of Class A flame-retardant modified polystyrene board, comprising the following steps:

[0040] (1) The flame-retardant polystyrene resin and foaming agent are expanded and foamed at a steam pressure of 1.0 bar at 110°C to obtain flame-retardant polystyrene foam plastic particles; the fire-resistant coating is based on 325 ~425 mesh talcum powder is used as the basis, and it is made by adding 20% ​​nano-sized aluminum hydroxide and 0.8% surfactant and mixing evenly, by weight;

[0041] (2) Mix the surfactant-modified fireproof coating material into the flame-retardant polystyrene foam particles, then add the cu...

Embodiment 3

[0044] The Class A flame-retardant modified polystyrene board of this embodiment, by weight, includes 23 parts of flame-retardant polystyrene resin, 0.5 parts of foaming agent, 45 parts of talcum powder, 8 parts of aluminum hydroxide, and 3 parts of surfactant parts, 4 parts of curing agent. The curing agent is a lithium-based curing agent.

[0045] A preparation method of Class A flame-retardant modified polystyrene board, comprising the following steps:

[0046] (1) Flame-retardant polystyrene foam particles are obtained by expanding and foaming flame-retardant polystyrene resin and foaming agent at a steam pressure of 0.6 bar at 106°C;

[0047] (2) Add the surfactant-modified fireproof coating material into the flame-retardant polystyrene foam particles, then add the curing agent, and stir at 70°C for 18 minutes to form crystals that evenly wrap the fireproof material on the surface ; The fireproof coating material is based on talcum powder of 325-425 mesh, adding 17.8% n...

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PUM

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Abstract

The invention discloses an A-grade flame retardant modified polystyrene board and a preparation method thereof. The polystyrene board comprises 20-25 parts by weight of flame retardant polystyrene resin, 0.4-0.5 part by weight of foaming agent, 40-50 parts by weight of talcum powder, 6-10 parts by weight of aluminium hydroxide, 2-4 parts by weight of surfactant and 3-5 parts by weight of curing agent. The invention also discloses a corresponding preparation method. The modified polystyrene board has the effects of increasing the burning grades of the traditional polystyrene boards to grade A2 (excellent fireproof performance), simultaneously maintaining various original advantages of the traditional polystyrene boards and achieving the perfect performances of insulating and fireproofing and is totally different from EPS (expanded polystyrene) boards achieving the aim of flame retardance by adding organic flame retardants on the market. In fireproof experiments carried out by state authorities, the results of burning experiments show that the ablation phenomenon exists within the range of 1 meter at the bottom and other parts are intact and are free from molten drops or collapse.

Description

technical field [0001] The invention relates to a flame-retardant building material, in particular to a grade A flame-retardant modified polystyrene board and a preparation method thereof. Background technique [0002] Traditional EPS expanded polystyrene board is a flammable material. Although the addition of organic flame retardants can improve its flame retardancy, but with the volatilization of organic flame retardants, the flame retardancy of EPS expanded polystyrene boards also decreases. The flame retardant performance can only reach B1 level; in addition, the traditional EPS expanded polystyrene board is a thermoplastic material, which shrinks, melts, and flows after being attacked by fire. The fire process is accompanied by thick smoke, which not only seriously pollutes the environment, but also spreads quickly. , The fire area is large, it is difficult to fight, and often causes heavy casualties. The CCTV fire, the teacher's apartment fire on Jiaozhou Road in Shang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08K9/00C08K3/34C08K3/22C08J9/04
Inventor 蒋光树王金荣
Owner HEFEI HUIZHONG INTPROP MANAGEMENT
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