Thermosetting airgel modified polystyrene board and its preparation method and building wall

An airgel and thermosetting technology, which is applied in the field of polystyrene board building materials, can solve the problems that the flame retardancy can only reach B level, the fire spreads quickly, and the flame retardancy declines, and achieves excellent fire resistance, light weight, and fire resistance. The effect of excellent performance

Active Publication Date: 2020-08-28
摩根坤德(天津)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional polystyrene board is a thermoplastic material, which usually softens and melts when heated, shrinks, melts, and flows after being attacked by fire. During the fire, the heat release is relatively large, accompanied by thick smoke, which not only seriously pollutes the environment, but also causes fire hazards. The spreading speed is fast, the fire area is large, and it is difficult to extinguish
Although the addition of organic flame retardants can improve its flame retardancy, but with the volatilization of organic flame retardants, its flame retardant performance will also decline, and its flame retardant performance can only reach B level after testing.

Method used

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  • Thermosetting airgel modified polystyrene board and its preparation method and building wall

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Embodiment approach

[0051] As a preferred embodiment of the present invention, the thermosetting aerogel modified polystyrene board comprises the following parts by weight of raw materials: 90-110 parts of expandable polystyrene, 45-140 parts of thermosetting resin, and 18 parts by weight. -24 parts and 40-130 parts of coating material;

[0052] Wherein, the coating material includes flame retardant and silica aerogel, and the weight ratio of flame retardant to silica aerogel is (1-6):1.

[0053] As a preferred embodiment of the present invention, the thermosetting aerogel modified polystyrene board comprises the following parts by weight of raw materials: 95-105 parts of expandable polystyrene, 50-120 parts of thermosetting resin, and 18 parts by weight. -22 parts and 45-120 parts of coating material;

[0054] Among them, the coating material includes flame retardant and silica aerogel, and the weight ratio of flame retardant to silica aerogel is (2-5):1.

[0055] By further limiting the amount of each...

Embodiment 1

[0087] The thermosetting aerogel-modified polystyrene board provided in this embodiment includes the following parts by weight of raw materials: 80 parts of expandable polystyrene, 45 parts of furfural resin, 15 parts of p-toluenesulfonic acid and coating Material 45 parts;

[0088] Among them, the coating material includes calcium carbonate and silica aerogel, the weight ratio of calcium carbonate and silica aerogel is 0.5:1, and the silica aerogel includes micron-sized silica aerogel and sub Micron-sized silica aerogel, the median particle size of micron-sized silica aerogel is 5.0μm, and the median particle size of sub-micron-sized silica aerogel is 0.5μm. The weight ratio of gel to submicron silica aerogel is 0.5:1.

[0089] The preparation method of the thermosetting aerogel modified polystyrene board includes the following steps:

[0090] (a) The expandable polystyrene is steam pre-expanded, the pressure of the steam is 0.08MPa, the time of steam is 30s, and the density is 16...

Embodiment 2

[0094] The thermosetting aerogel modified polystyrene board provided in this embodiment is made of the following raw materials in parts by weight: 100 parts of expandable polystyrene, 80 parts of phenolic resin, 20 parts of phosphoric acid and 100 parts of coating material ;

[0095] Among them, the coating material includes aluminum hydroxide and silica aerogel, the weight ratio of aluminum hydroxide and silica aerogel is 1:1, and the silica aerogel includes micron-sized silica aerogel. And submicron silica aerogels, the median size of micron silica aerogels is 10.0μm, the median size of submicron silica aerogels is 1.0μm, micron dioxide The weight ratio of silica aerogel and submicron silica aerogel is 1:1.

[0096] The preparation method of the thermosetting aerogel modified polystyrene board includes the following steps:

[0097] (a) The expandable polystyrene is pre-steamed, the pressure of the steam is 0.09MPa, the time of steam is 40s, and the density is 20kg / m 3 Of pre-expa...

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Abstract

The invention provides a thermosetting aerogel modified polystyrene board, a preparation method thereof and building wall, relates to the technical field of building materials of polystyrene board. The thermosetting aerogel modified polystyrene board is mainly made of expandable polystyrene, thermosetting resin, curing agent and coating material, wherein the coating material comprises flame retardants with specific ratios and silica aerogel, since the silica aerogel has the characteristics of low thermal conductivity, low density, high porosity, good fire resistance and the like, and the silica aerogel is added into a thermosetting aerogel modified polystyrene board, so that the thermosetting aerogel modified polystyrene board also has a lower thermal conductivity, and can achieve the effect of good heat preservation and heat insulation performance under a thinner thickness, and is light in texture; in the same condition as the heat preservation requirement, the thickness of the traditional thermal insulation material is reduced by 50 percent; the thermosetting aerogel modified polystyrene board presents a thermosetting property, the volume is substantially constant when the fire is burning, the volume is not flowing, the fire is self-extinguishing, the fire resistance is excellent, and the fire-resistant A-grade standard can be met.

Description

Technical field [0001] The invention relates to the technical field of polystyrene board building materials, in particular to a thermosetting aerogel modified polystyrene board, a preparation method thereof and a building wall. Background technique [0002] Polystyrene foam board, abbreviated as polystyrene board, EPS board, is made of expandable polystyrene beads containing volatile liquid foaming agent, which is pre-heated and then heated in a mold to form a white with fine closed-cell structure. foam. Polystyrene board is a kind of thermal insulation material with high compression resistance, low water absorption, moisture resistance, airtightness, light weight, corrosion resistance, aging resistance, and low thermal conductivity. It can be used for building walls, roof insulation, and composite insulation. The thermal insulation layer of the board, or the thermal insulation material for the refrigeration equipment of vehicles, ships and cold storage, etc. [0003] Traditional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08L61/00C08L61/06C08K7/26C08K3/22
CPCC08K2003/2227C08K2201/014C08L25/06C08L2201/02C08L61/00C08K7/26C08L61/06C08K3/22
Inventor 孙梅孙晔崔伟腾
Owner 摩根坤德(天津)新材料有限公司
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