Intangible needling type negative pressure injection manufacture method of fireproof insulation foam board

Abstract

The invention provides an intangible needling type negative pressure injection manufacture method of a fireproof insulation foam board and relates to a manufacture method of a fireproof insulation building material. The intangible needling type negative pressure injection manufacture method of the fireproof insulation foam board is simple in progress. The fireproof insulation foam board obtained by the manufacture method is low in heat conductivity coefficient and high in flame retardant property. The intangible needling type negative pressure injection manufacture method of the fireproof insulation foam board comprises the following steps of A, preparing a foam board and liquid-state or lacteal fireproof flame retardants; B, processing a plurality of through holes or pores in the surface of the foam board in an intangible needling mode; C, injecting the fireproof flame retardants into a sealed container, immersing the foam board in the fireproof flame retardants, and vacuuming the sealed container; D, taking the foam board out of the sealed container, performing slicking and rolling process on the surface of the foam board, and drying or airing the foam board; E, enabling the fireproof flame retardants to completely solidified in the foam board to obtain the fireproof insulation foam board.

Description

technical field [0001] The invention relates to a method for manufacturing a fire-proof and heat-preserving building material, in particular to a method for injecting a flame retardant into a foam board by using an invisible needle to form a fire-proof and heat-preserving board. Background technique [0002] Building exterior wall insulation materials are one of the most important materials in the construction industry. Currently, the most common exterior wall insulation materials are polyurethane, polystyrene, modified phenolic or modified urea-formaldehyde foam boards, and their thermal conductivity is lower than 0.035W. / (m K), but the flame retardant coefficient can only reach B2 level, even after some special treatment, the highest flame retardant coefficient can only reach B1 level, and a large amount of toxic smoke will be generated when burning, so it has directly or indirectly caused Many serious building fires caused great loss of people's lives and property. In o...

AI Technical Summary

Problems solved by technology

At present, the thermal insulation materials that can reach Class A combustion performance on the market include silicate thermal insulation materials, rock wool, ceramic thermal insulation materials and foam glass thermal insulation boards, etc. The thermal conductivity of these materials is basically higher than 0.041W / (m·K) , poor hydrophobicity, high cost, seriously affecting the insulation and waterproofing of buildings