Preparation method of fire-retardant EPS foam insulation board and board thereof

Abstract

The invention discloses a preparation method of a flame-retardant EPS foam insulation board and the insulation board. The method comprises the following steps: 1) preparing flame-retardant EPS pre-sent particles; 2) preparing a flame-retardant EPS foam board; The EPS foam board is coated and modified; wherein, the coating modification is that the coating modification is to first add the fireproof adhesive to the benzene on which the flame-retardant EPS foam board is placed under a high pressure of 0.3 to 1.0 MPa. In the board modification equipment, then stand still under the pressure of 0.01-0.08MPa for 10 seconds to 10 minutes, so that the fire-resistant adhesive penetrates into the flame-retardant EPS foam board to achieve the purpose of coating modification; 4) drying Curing and forming. The thermal conductivity of the fire-retardant EPS foam insulation board of the present invention is lower than 0.055w / m·k, and the specific gravity can reach 150Kg / M 3 Below, the compressive strength is greater than 150KPa and the calorific value is less than 3MJ / kg.

Description

technical field [0001] The invention belongs to the technical field of fire protection, and in particular relates to a preparation method of a flame-retardant polystyrene foam insulation board and the flame-retardant polystyrene foam insulation board prepared by the method. Background technique [0002] Building insulation materials play an important role in creating a suitable indoor thermal environment and saving energy in building insulation. In the current external wall insulation system, flame-retardant polystyrene (EPS) insulation boards are generally used. It has the characteristics of light bulk density, low thermal conductivity, long stable period, good permeability resistance, good heat insulation performance, convenient construction, and low engineering cost, so it is widely used. [0003] The patent application with document number CN102675762A discloses a halogen-free flame-retardant polystyrene foam material and a preparation method thereof, and CN102808461A d...

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Problems solved by technology

[0005] The present invention aims at the technical problems that it is difficult to uniformly coat the fireproofing agent around the EPS foam particles in the patent document CN102952288A, so that it is difficult to improve the fireproofing grade of the polystyrene foam board, and the technical problem of long production cycle, and the purpose is to provide a new flame retardant polymer The preparation method of styrene foam insulation board comprises the steps:

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