Preparation method of expanding type halogen-free organic fireproof blocking material

Abstract

The invention relates to a preparation method of an expanding type halogen-free organic fireproof blocking material. The preparation method comprises the following steps of: selecting raw materials of aluminium hydroxide, ceramic powder, expanding type graphite, iron oxide red, dioctyl phthalate, zinc borate, alumina silicate fibre, acrylic resin, dibutyl phthalate, polyamide resin 650, gaseous phase white carbon black and ammonium polyphosphate in a certain ratio; mixing and stirring the polyamide resin 650, the dioctyl phthalate, the gaseous phase white carbon black, the ammonium polyphosphate and the dibutyl phthalate to obtain bonded resin; placing the aluminium hydroxide, the ceramic powder, the expanding type graphite and the iron oxide red into a stirring machine to stir; adding the bonded resin and the acrylic resin into a premixed filler to mix and stir into a viscous soft ball-like substance; and placing the viscous soft ball-like substance in the above procedure into an extruder to perform extrusion molding. By the preparation method, the defect that irritant gases and smoke generated by the conventional organic fireproof blocking material under the action of a fire disaster penetrate holes to diffuse and spread all around is overcome; and the problems of damage to a human body and corrosion to equipment caused by toxic halogen acid hydrogen are solved.

Description

[0001] The technical field [0002] The invention relates to a fireproof blockage, in particular to a method for manufacturing an intumescent halogen-free organic fireproof blockage. Background technique [0003] At present, the known traditional organic fireproof blockages are mainly obtained by adding halogen flame retardants to obtain excellent flame retardancy. Although halogen materials have good flame retardancy effects, they will release a large amount of smoke and hydrogen halides when a fire occurs. Gas, these smoke and hydrogen halide gas can irritate the human eyes and respiratory system, causing symptoms such as dizziness, coma, difficulty breathing, suffocation and death, and also hinder the fire fighting and rescue work of firefighters and rescuers, and can cause electrical system switches and other Corrosion of metal objects. In addition, the traditional organic fireproof blockage does not have the function of expansion, so it cannot effectively prevent the tox...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the fact that the traditional organic blockage contains halogens, and releases hydrogen halide gas in case of fire, and cannot effectively prevent the toxic smoke generated by the fire from passing through the gaps and holes between the wires, cables, and organic fireproof blockages and the organic fireproof. The gap between the blockages spreads to the neighbors. The present invention provides a method for manufacturing an intumescent halogen-free organic fireproof blockage that does not contain halogens, has high expansion rate, good smoke-tight effect, and high fireproof performance.