Dense-type silicone elastic material and production method thereof

Abstract

The invention belongs to the field of fireproof materials, and relates to a dense-type silicone elastic material. The dense-type silicone elastic material is prepared by mixing a mixture A, a mixture B and a mixture C at the weight ratio of 3 to 7 to 2, wherein the mixture A is prepared from the following raw materials in parts by weight: 24-26 parts of methyl hydrogen silicone oil, 57-59 parts of hydroxyl polydimethylsiloxane, 11-13 parts of fumed silica, 9-11 parts of nano calcium carbonate, 7-9 parts of pentaerythritol, 17-19 parts of quartz powder, 23-25 parts of alumina powder, 12-14 parts of acrylic resin, 5-7 parts of polyether polyol, 3-5 parts of dehydrated castor oil, 5-7 parts of tributyl citrate, 1-3 parts of 1,4-butanediol, 5-7 parts of methylene diphenyl diisocyanate, 15-17 parts of kaolin, 5-7 parts of naphthenic oil and 77-79 parts of metal powder. The dense-type silicone elastic material has the advantages of fireproof performance, ray penetration resistance and stretching and compression elasticity; displacement caused by mechanical pipeline vibration and building settlement can be compensated; fire prevention and blockage of pipeline or cable maintenance are facilitated.

Description

technical field [0001] The invention belongs to the field of fireproof materials, and relates to a fireproof foam glue, in particular to a dense silicone elastic material and a production method thereof. Background technique [0002] Most of the existing fireproofing blockages use organic fireproofing materials and inorganic fireproofing cement. Organic fireproof blockages are prohibited to be used in some occasions with strict environmental requirements because they contain toxic volatiles; although inorganic fireproof cement is non-toxic, it will solidify into hard blocks after the sealing is completed, without stretching and compression elasticity, and cannot be used Compensate for the mechanical displacement caused by the vibration of mechanical pipelines and the settlement of buildings, and the maintenance and replacement of wall-penetrating objects such as pipes and cables needs to be knocked out by gravity, which is very easy to damage the surrounding walls, and the m...

AI Technical Summary

Problems solved by technology

Organic fireproof blockages are prohibited to be used in some occasions with strict environmental requirements because they contain toxic volatiles; although inorganic fireproof cement is non-toxic, it will solidify into hard blocks after the sealing is completed, without stretching and compression elasticity, and cannot be used Compensate for the mechanical displacement caused by the vibration of mechanical pipelines and the settlement of buildings, and the maintenance and replacement of wall-penetrating objects such as pipes and cables needs to be knocked out by gravity, which is very easy to damage the surrounding walls, and the maintenance of pipes and cables is very inconvenient