Foaming silicone fire-resisting sealant

A fireproof sealant, foaming technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve problems such as insufficient foaming performance, achieve low substrate corrosion, good sealing effect, Good flame retardant and fire performance

Inactive Publication Date: 2018-02-16
SICHUAN KELIXIN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing silicone sealants still have deficiencies in the comprehensive indicators of bonding performance, flame retardant and fireproof performance, and foaming performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A foamed silicone fireproof sealant, in parts by weight, the foamed silicone fireproof sealant components include: 30 parts of α, ω-dihydroxypolysiloxane, 1 part of coupling agent, filler 30 parts, 1 part of thixotropic agent, 5 parts of inorganic flame retardant, 5 parts of nitrogen-based flame retardant, 1 part of crosslinking agent, 1 part of tackifier, 0.1 part of catalytic curing agent, and 1 part of foaming agent.

[0021] Wherein, the coupling agent is γ-aminopropyltriethoxysilane, the filler is calcium carbonate or bentonite, the thixotropic agent is silicon dioxide, and the inorganic flame retardant is magnesium hydroxide. The nitrogen-based flame retardant is melamine, the crosslinking agent is methyltrimethoxysilane, the tackifier is isopropyl titanate, the catalytic curing agent is dibutyltin dilaurate, and the foaming The agent is foaming ammonium polyphosphate.

Embodiment 2

[0023] A foamed silicone fireproof sealant, in parts by weight, the foamed silicone fireproof sealant components include: 60 parts of α, ω-dihydroxy polysiloxane, 10 parts of coupling agent, filler 90 parts, 10 parts of thixotropic agent, 15 parts of inorganic flame retardant, 15 parts of nitrogen-based flame retardant, 10 parts of crosslinking agent, 10 parts of tackifier, 5 parts of catalytic curing agent, and 10 parts of foaming agent.

[0024] Wherein, the coupling agent is γ-aminopropyltrimethoxysilane, the filler is bentonite, the thixotropic agent is hydrogenated castor oil, the inorganic flame retardant is aluminum hydroxide, and the nitrogen-based flame retardant The combustion agent is melamine cyanurate, the crosslinking agent is ethyltrimethoxysilane, the tackifier is butyl titanate, the catalytic curing agent is dibutyltin diacetate, and the foaming agent is Foaming monoammonium phosphate.

Embodiment 3

[0026] A foamed silicone fireproof sealant, in parts by weight, the foamed silicone fireproof sealant components include: 50 parts of α, ω-dihydroxy polysiloxane, 5 parts of coupling agent, filler 50 parts, 5 parts of thixotropic agent, 10 parts of inorganic flame retardant, 10 parts of nitrogen-based flame retardant, 5 parts of crosslinking agent, 5 parts of tackifier, 2 parts of catalytic curing agent, and 5 parts of foaming agent.

[0027] Wherein, the coupling agent is γ-aminopropyltrimethoxysilane, the filler is bentonite, the thixotropic agent is hydrogenated castor oil, the inorganic flame retardant is aluminum hydroxide, and the nitrogen-based flame retardant The combustion agent is melamine cyanurate, the crosslinking agent is ethyltrimethoxysilane, the tackifier is butyl titanate, the catalytic curing agent is dibutyltin diacetate, and the foaming agent is Foaming monoammonium phosphate.

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PUM

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Abstract

The invention discloses a foamed silicone fireproof sealant. In parts by weight, the foamed silicone fireproof sealant comprises: 30-60 parts of α, ω-dihydroxypolysiloxane, coupled 1-10 parts of additives, 30-90 parts of fillers, 1-10 parts of thixotropic agents, 5-15 parts of inorganic flame retardants, 5-15 parts of nitrogen-based flame retardants, 1-10 parts of cross-linking agents, tackifiers 1-10 parts, 0.1-5 parts of catalytic curing agent, and 1-10 parts of foaming agent; the foamed silicone fireproof sealant has good bonding performance and strong flame retardancy.

Description

technical field [0001] The invention relates to the field of technical sealing materials, in particular to a foaming silicone fireproof sealant. Background technique [0002] Silicone sealant is a relatively common sealing material, which is mainly used in fireproof sealing of buildings, flame retardant sealing of cables through walls and other applications. The existing silicone sealants still have deficiencies in the comprehensive indicators of bonding performance, flame retardant and fireproof performance, and foaming performance. Contents of the invention [0003] In view of this, the present application provides a foamed silicone fireproof sealant. The foamed silicone fireproof sealant has good bonding performance and strong flame retardancy. [0004] In order to solve the above technical problems, the technical solution provided by the present invention is a foamed silicone fireproof sealant. In parts by weight, the foamed silicone fireproof sealant components inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06C08J9/06
CPCC09J183/04C08J9/06C08J2383/04C08K5/34922C08K5/34928C08K13/02C08K2003/2224C08K2003/2227C08L2201/02C08L2203/14C09J11/04C09J11/06C08L91/00C08K3/22
Inventor 李鹏
Owner SICHUAN KELIXIN NEW MATERIALS CO LTD
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