Silicone foam fireproof blocking material

Abstract

The invention provides a fire-resistant silicone blocking material, which relates to a fire-resistant blocking material for seams when pipelines pass walls. The fire-resistant blocking material contains no toxic component, is fire resistant, of stretching and compression elasticity, can compensate the displacement caused by vibration in mechanical pipelines and settlement of buildings, and are easy for maintaining pipelines and cables. The invention uses silicon oil, silica gel, color additive, reinforcing agent, structure controlling agent, retardant, catalyst and solvent, and is characterized in that the substrate gel is synthesized by silica gel, silicone oil, reinforcing agent, structure controlling agent and solvent. At using, a black even thick gel that is prepared by synthesizing the substrate gel, silicone oil and color agent is mixed at 1:1 proportion with a white even thick gel that is prepared by synthesizing the substrate gel, silicone oil, retardant, catalyst and solvent, then they are vulcanized and foamed to form an elastic foam body. The invention is for blocking in a fire resistant way the seams when pipes, cables, vent tubes pass walls.

Description

Technical field: [0001] The invention relates to the fireproof sealing of wall-through gaps for various pipelines, especially the fireproof sealing of wall-through pipes, cables and ventilation pipes in nuclear power plants and ships. Background technique: [0002] Most of the existing fireproofing blockages use organic fireproofing materials and inorganic fireproofing cement. Organic blockages are forbidden to be used in some places with strict environmental requirements due to their toxic volatiles; inorganic fireproof cements are non-toxic, but after the blockage is completed, they solidify into hard blocks, without stretching and compression elasticity, and cannot compensate for mechanical damage. The mechanical displacement caused by pipeline vibration and building subsidence, and the maintenance and replacement of pipes and cables through the wall must be knocked out by gravity, which can easily damage the surrounding walls, and the maintenance of pipes and cables is v...

AI Technical Summary

Problems solved by technology

Organic blockages are forbidden to be used in some places with strict environmental requirements due to their toxic volatiles; inorganic fireproof cements are non-toxic, but after the blockage is completed, they solidify into hard blocks, without stretching and compression elasticity, and cannot compensate for mechanical damage. The mechanical displacement caused by pipeline vibration and building subsidence, and the maintenance and replacement of pipes and cables through the wall must be knocked out by gravity, which can easily damage the surrounding walls, and the maintenance of pipes and cables is very inconvenient