Method for preparing reinforced cement-permeating fireproof insulation board

Abstract

Provided is a method for preparing a reinforced cement-permeating fireproof insulation board. The method comprises the steps that a polystyrene board with a porous structure is adopted as a mother board, and the mother board is placed on vacuumizing equipment with a transmission function; and the upper portion of the mother board is covered with mixed slurry with the thickness of 0.03 m to 0.06 m, the lower portion of the mother board is vacuumized, so that the slurry fully permeates into clearances between polyphenyl granules of the mother board. The method is used for the fireproof insulation board.

Description

technical field [0001] The invention relates to a preparation method of an enhanced cement permeable fireproof and thermal insulation board. Background technique [0002] External wall insulation materials can be divided into two types according to the internal composition of insulation materials: inorganic insulation materials and organic insulation materials. [0003] Fire protection class A is a material with no ignition point and thermal insulation effect; fire protection class B1 is a flame-retardant thermal insulation material; fire protection class B2 is a combustible thermal insulation material, also known as a flame-retardant material, and most organic thermal insulation materials are added with an appropriate amount of flame retardant. Commonly used are EPS expanded polystyrene board and XPS extruded polystyrene board. This material has a low ignition point and releases a large amount of harmful gases during combustion. Existing external wall insulation technologi...

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Problems solved by technology

Existing external wall insulation technologies have not escaped the circle of organic insulation materials in use, but on the basis of conventional materials and technologies, through the superposition of complex technologies, simple improvements to commonly used products have not fundamentally solved the problem of using non-combustible materials The problem of external wall insulation system

[0004] Organic thermal insulation materials have small thermal conductivity, good thermal insulation performance, and are easy to use, but their fireproof performance is poor. According to the current national requirements for thermal insulation materials, it is difficult to meet fireproof standards, and safety accidents continue in the process of application.

Inorganic thermal insulation materials have good fire resistance and meet the requirements of fire protection regulations, so there will be no fire safety accidents. However, inorganic materials have high density, poor thermal insulation performance, easy water absorption, and easily affected strength. The problem of safety fixation is difficult to solve

Therefore, cement permeable fireproof insulation board combines the advantages of organic insulation board and inorganic insulation board, that is, it has good thermal insulation performance and good A-level fireproof performance. However, from the application situation, the strength of cement permeable fireproof insulation board is low. The use of broken rate is high, there are safety hazards after construction

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