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Elastic fireproof sealant and preparation method thereof

A fireproof sealant and elasticity technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of elasticity, water resistance and fire resistance, and achieve good elasticity, wide application, water resistance and other problems. and excellent fire performance

Inactive Publication Date: 2020-07-03
SICHUAN TIANFU FIRE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are certain limitations in the fireproof sealing of building gaps, and the existing gap fireproof sealing materials are insufficient in terms of elasticity, water resistance, and fireproof performance.

Method used

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  • Elastic fireproof sealant and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 Preparation of elastic fireproof sealant of the present invention

[0025] 1. Raw materials: 40 parts of binder, 41 parts of filler, 50 parts of flame retardant, 10 parts of plasticizer, 10 parts of crosslinking agent, 6 parts of tackifier, and 0.03 part of catalyst. Wherein, the binder is α,ω-dihydroxypolysiloxane with a viscosity of 10000mPa·s, the filler is calcium carbonate, the flame retardant is aluminum hydroxide, and the plasticizer is dimethyl Silicone oil, the crosslinking agent is methyltrimethoxysilane, the tackifier is butyl titanate, and the catalyst is dibutyltin dilaurate.

[0026] 2. Preparation method: Add the binder, plasticizer, filler and flame retardant into the planetary mixer, dehydrate for 180min under the conditions of vacuum degree 0.085~0.09MPa and temperature 110~120℃, cool to room temperature, and then add The cross-linking agent, tackifier and catalyst are stirred for 60 minutes under a vacuum of 0.085-0.09 MPa to obtain an e...

Embodiment 2

[0027] Embodiment 2 Preparation of elastic fireproof sealant of the present invention

[0028] 1. Raw materials: 50 parts of binder, 45 parts of filler, 55 parts of flame retardant, 11 parts of plasticizer, 15 parts of crosslinking agent, 8 parts of tackifier, and 0.035 parts of catalyst. Wherein, the binder is α, ω-dihydroxypolysiloxane with a viscosity of 5000mPa·s, the filler is bentonite, the flame retardant is aluminum hydroxide, and the plasticizer is simethicone , the crosslinking agent is methyl tributylketoxime silane, the tackifier is isopropyl titanate, and the catalyst is dibutyltin dilaurate.

[0029] 2. Preparation method: Add the binder, plasticizer, filler and flame retardant into the planetary mixer, dehydrate for 180min under the conditions of vacuum degree 0.085~0.09MPa and temperature 110~120℃, cool to room temperature, and then add The cross-linking agent, tackifier and catalyst are stirred for 60 minutes under a vacuum of 0.085-0.09 MPa to obtain an elas...

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Abstract

The invention provides an elastic fireproof sealant. The elastic fireproof sealant comprises, by weight, 40-50 parts of a binder, 35-45 parts of a filler, 50-60 parts of a flame retardant, 10-15 partsof a plasticizer, 10-15 parts of a cross-linking agent, 5-10 parts of a tackifier and 0.03-0.05 part of a catalyst. The invention also provides a preparation method of the elastic fireproof sealant.The elastic fireproof sealant prepared by the invention has good elastic performance, excellent water resistance and fireproof performance, low smoke yield during combustion and higher safety during use. The elastic fireproof sealant is wide in application range and can be suitable for fireproof plugging of fixed gaps and movable gaps of various buildings.

Description

technical field [0001] The invention belongs to the technical field of fireproof sealing materials, and in particular relates to an elastic fireproof sealant and a preparation method thereof. Background technique [0002] Fireproof sealing materials mainly include flexible organic blocking materials, inorganic blocking materials, fire retardant bags, inorganic fireproof boards, etc., which are used for fireproof sealing of holes formed by penetrations such as wires, cables, and pipes passing through walls or floors. However, there are certain limitations in the fireproof sealing of building gaps, and the existing gap fireproof sealing materials have deficiencies in elasticity, water resistance and fireproof performance. Therefore, it is of great significance in the technical field of fireproofing and sealing materials to study a gap fireproofing and sealing material with excellent elastic properties, good water resistance and fireproofing properties. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/08
CPCC08K2003/2227C08K2003/265C08L2201/02C08L2205/025C09J11/04C09J11/06C09J11/08C09J183/04C08L83/04C08K13/02C08K3/22C08K3/26C08K5/10C08K3/346
Inventor 彭波戚天游郭伟全龚斌
Owner SICHUAN TIANFU FIRE MATERIAL