Fire-proof sealing material

Abstract

The invention discloses a fire-proof sealing material, which is prepared from the following raw materials (by mass): 45-60 parts of magnesia powder, 18-25 parts of an intumescent flame retardant, 10-15 parts of dry clay powder, 1.5-4 parts of sodium hexametaphosphate, 0.5-3 parts of quicklime powder, 1-1.5 parts of refractory fiber, 2-6 parts of expansible graphite, and 0.5-1 part of foamed microspheres. Compared with the prior art, the invention has the advantages that: the fire-proof sealing material is formed by mixing powdery materials, during use, water is added into the fire-proof sealing material for mixing, then the mixture is daubed or filled to a sealing site, the phenomenon of hardening deterioration of paste-muddy sealing material after long time placement in the existing technology does not exist, and the shelf life is long; the fire-resistant time is long to 24h or more, and relative to the only 3-8h of fire-resistant time, the fire-proof sealing material provided by theinvention has significant progress. With simple preparation process, the fire-proof sealing material has the advantages of environmental protection, water resistance, good pore size compatibility, convenient construction and long service life.

Description

technical field [0001] The invention relates to the field of fireproof materials, in particular to a fireproof sealing material. Background technique [0002] Cables, oil pipes, air pipes, air pipes, metal pipes and other penetrating objects pass Fireproof sealing of holes formed when building partition walls or interlayers; in the past, refractory bricks, mineral wool, ceramic wool, etc. were used to seal them. The initial blockage is then filled with organic blockage; however, the size of the hole is different. Although there are many sizes of fireproof bags, it is difficult to fully meet the size of the hole, so it is necessary to use Organic blockage is used for further sealing. Since the fire-resistant woven bag is filled with powdery particles, which can seep and absorb water, which has an impact on the service life, we are looking for an environmentally friendly, waterproof, and compatible with the size of the hole, which is convenient for construction and has a long...

AI Technical Summary

Problems solved by technology

[0002] Cables, oil pipes, air pipes, air pipes, metal pipes and other penetrating objects pass Fireproof sealing of holes formed when building partition walls or interlayers; in the past, refractory bricks, mineral wool, ceramic wool, etc. were used to seal them. The initial blockage is then filled with organic blockage; however, the size of the hole is different. Although there are many sizes of fireproof bags, it is difficult to fully meet the size of the hole, so it is necessary to use Organic blockage is used for further sealing. Since the fire-resistant woven bag is filled with powdery particles, which can seep and absorb water, which has an impact on the service life, we are looking for an environmentally friendly, waterproof, and compatible with the size of the hole, which is convenient for construction and has a long service life. The fireproof sealing material and its preparation method are particularly important