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Composite fireproof thermal-insulation board for fire barrier of external thermal insulation system for outer wall and preparation method of the board

A technology for fire isolation belt and external wall thermal insulation, which can be used in manufacturing tools, ceramic molding machines, etc., and can solve the problems of low fire safety of external wall thermal insulation systems.

Inactive Publication Date: 2012-07-25
葛兆明 +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the technical problem of low fire safety of the existing external wall thermal insulation system, and provides a preparation method of a composite fireproof thermal insulation board used for the fireproof isolation belt of the external thermal insulation system of the external wall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0010] Specific implementation mode 1: The composite fire-proof insulation board used in the fire-proof isolation zone of the external wall insulation system in this embodiment consists of 40-55 parts by weight of expanded perlite, 0.2-0.5 parts by weight of floating beads, 0.5-1.0 parts by weight of anti-crack fiber, 5-15 parts by weight of water-repellent agent, 0.2-0.5 parts by weight of air-entraining agent, 20-30 parts by weight of water glass, 3-5 parts by weight of redispersible rubber powder, 8-12 parts by weight of cement, 0.1-0.3 parts by weight Made of sodium fluorosilicate and 15-22 parts by weight of water.

[0011] The air-entraining agent used in this embodiment is the SJ-2 triterpene saponin air-entraining agent produced by Shanghai Fengyang Building Materials Co., Ltd.

[0012] The water-repellent agent used in this embodiment is the organosilicon water-repellent agent produced by Heilongjiang Academy of Architecture Sciences in Cold Regions.

[0013] The red...

specific Embodiment approach 2

[0014] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the expanded perlite is composed of 20-40 parts by mass of closed-cell expanded perlite with a particle size of 1.5-3.0 mm, and 10-20 parts by mass with a particle size of It consists of 0.5-1.5mm closed-cell expanded perlite and 10-20 parts by mass of closed-cell expanded perlite with a particle size less than 0.5mm. Others are the same as in the first embodiment.

[0015] The closed-cell expanded perlite described in this embodiment is produced by Xinyang Lijun Bohua Microbeads Co., Ltd.

specific Embodiment approach 3

[0016] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the anti-crack fiber is a chopped basalt fiber with a length of 20 mm, and its single filament diameter is 7 μm to 25 μm. Others are the same as those in the first or second embodiment.

[0017] The chopped basalt fiber described in this embodiment is produced by Mudanjiang Jinshi Basalt Fiber Co., Ltd.

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Abstract

The invention discloses a composite fireproof thermal-insulation board for a fire barrier of an external thermal insulation system for an outer wall and a preparation method of the board, and relates to a fireproof thermal-insulation board and a preparation method of the board. The board solves a technical problem that fireproofing security of the external thermal insulation system for the outer wall in the prior art is low. The fireproof thermal-insulation board provided by the invention is prepared from expanded perlite, floating beads, anti-crack fibers, a water repellent, an air entraining agent, water glass, re-dispersible rubber powder, cement, sodium fluosilicate and water. The preparation method comprises the steps of mixing raw materials, placing raw materials in a mold, solidifying the mold, demolding to obtain a blank, and heating and drying the blank to obtain the board. The fireproof thermal-insulation board provided by the invention has the characteristics of bulk density of 250-290kg / m<3>, compressive strength larger than 0.15MPa, thermal conductivity not larger than 0.060W / (m*k), water absorption not larger than 2%, hydrophobic rate not less than 98.0%, linear shrinkage not larger than 0.3%, 28d softening coefficient not less than 0.5, 50 times freezing and thawing cycle strength loss not larger than 15%, and mass loss not larger than 2.5%.

Description

technical field [0001] The invention relates to a fireproof insulation board and a preparation method thereof. Background technique [0002] With the improvement of my country's building energy-saving standards, a large number of buildings in my country adopt external wall insulation systems, and a large number of organic insulation materials (EPS, XPS, PU) with good insulation performance but flammability are widely used and the thickness of the use increases. The thermal insulation material will shrink and melt under certain temperature conditions, forming a connected cavity in the system. The existence of the cavity structure may provide sufficient oxygen for the combustion of the thermal insulation material in the system and form a channel for the flame to spread, which will inevitably affect the building community. Bring huge fire safety hidden danger, once a fire breaks out, it will bring irreparable life and economic loss. There are many cases of fires caused by organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26B28B1/08
Inventor 葛兆明徐卫东刘淑娟韩兆祥张东兴张国祥汤义勇
Owner 葛兆明
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