Polystyrene fire retardant material and its preparation method

A technology of polystyrene and fireproof materials, which is applied in the field of building thermal insulation materials, can solve problems such as inability to be flame retardant, and achieve the effect of a wide range of applications.

Inactive Publication Date: 2013-01-02
张戈 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a polystyrene fireproof material and its preparation method, while maintaining the characteristics of high strength, light weight,

Method used

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  • Polystyrene fire retardant material and its preparation method
  • Polystyrene fire retardant material and its preparation method
  • Polystyrene fire retardant material and its preparation method

Examples

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Embodiment 1

[0032] In this preferred embodiment, the mixed filler is composed of rapid hardening cement, water reducer, expansion agent, curing agent, iron oxide, polystyrene special rubber powder and other components, and the iron oxide can catalyze the adsorption of polystyrene particles , Fixing process, so that it does not drift or flow during the solidification process, ensures that the polystyrene particles are wrapped as well as possible by the mixed filler, enhances the isolation effect between polystyrene particles, and fundamentally destroys polystyrene particles under open flame conditions. Polymerization conditions of styrene to achieve the product's fire protection goals. refer to figure 2 , shows the process flow of the first embodiment of the polystyrene fireproof material preparation method of the present invention, specifically including:

[0033] Step S201: Pulverize the newly expanded polystyrene particles or the collected waste polystyrene foam, and select qualified ...

Embodiment 2

[0042] In this preferred embodiment, the homogeneously mixed polystyrene foam material and the mixed filling material are directly poured into the building cavity or the cavity surrounded by hard materials, and are used as insulation materials, which can not only keep polystyrene The characteristics of high strength, light weight, heat insulation, insulation and water resistance can also ensure that polystyrene cannot be melted by direct contact with an open flame under open flame conditions, or even if it melts, it cannot be polymerized to form a flammable glass body. Solve the fire prevention problem of insulation materials. In addition, in order to ensure that the product can also be produced in the northern region in winter, in addition to the ingredients in Method Example 1, the mixed filler is also added with antifreeze, air-entraining agent, defoamer, waterproofing agent, and quick-setting agent. and other ingredients. refer to image 3 , shows the process flow of the...

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Abstract

The invention provides a polystyrene fire retardant material and its preparation method. The polystyrene fire retardant material comprises polystyrene foam particle and mixed filler curing the polystyrene foam particle, wherein diameter of the polystyrene foam particle is smaller than or equal to 5 mm; the mixed filler comprises (by weight part) hard cement 100, water reducing agent 1-25, expansion agent 1-25, curing agent 1-25, catalyst 1-25 and binder 1-25; and weight ratio of the mixed filler to the polystyrene foam particle is 1:(0.02-0.05). In the inventive scheme, polystyrene foam particle is covered by the mixed filler, so that condition, that polystyrene forms combustible glass crystal polymer under open fire condition, is damaged, thus radically solving a problem that existing polystyrene heat insulation material can not retard combustion under open fire condition.

Description

technical field [0001] The invention relates to the technical field of building thermal insulation materials, in particular to a polystyrene fireproof material and a preparation method thereof. Background technique [0002] Polystyrene (PS, Polystyrene) is a polymer synthesized by free radical polycondensation of styrene monomers, with a glass transition temperature of 80-100°C, a melting point of 240°C, and an amorphous density of 1.04-1.06 g / cm 3 , the crystal density is 1.11~1.12 g / cm 3 , the resistivity is 1020-1022 ohm cm, the thermal conductivity is 0.116 W / m Kelvin at 30°C, and the water absorption rate is 0.03-0.1. Polystyrene in normal state is an amorphous random polymer with excellent thermal insulation , insulation, water resistance and transparency. Expandable polystyrene (EPS, Expandable Polystyrene) is a thermoplastic material. After heating and foaming, each cubic meter of volume contains 3 to 6 million independent closed cells, and the volume of air contai...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B16/08C04B18/20
CPCY02W30/91
Inventor 张戈
Owner 张戈
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