Foaming sealant, preparation method thereof and sealing system

A technology of foam sealing and catalyst, applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve the problems of high construction cost, difficult drying of foam adhesives, poor performance of plugging blocks, etc., and accelerate the curing speed , solve the high environmental humidity dependence, improve the effect of bearing capacity and resilience performance

Inactive Publication Date: 2021-03-16
广东黑卫防火技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the technical problems of low sealing efficiency of small cavities in the prior art, difficult drying of foamed glue, poor performance of the cured plugging block and high construction cost, and to provide a foaming seal that solves the above technical problems. Agent and preparation method thereof, and sealing system

Method used

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  • Foaming sealant, preparation method thereof and sealing system
  • Foaming sealant, preparation method thereof and sealing system
  • Foaming sealant, preparation method thereof and sealing system

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preparation example Construction

[0048] The present invention also provides a method for preparing a foam sealant, comprising the steps of: mixing polyether polyol, isophorone diisocyanate, a flame retardant, a first catalyst, a nucleating agent, a chain extender, a crosslinking agent and The thixotropic agent is placed in water for the first mixing operation to obtain the A component; the second mixing operation is performed on the polymer polyol, polyphenyl polymethylene polyisocyanate and the second catalyst to obtain the B component; the A group Part and B component are sealed and stored separately.

[0049] In the preparation method of the above-mentioned foaming sealant, polyether polyol, isophorone diisocyanate, flame retardant, first catalyst, nucleating agent, chain extender, crosslinking agent and thixotropic agent are placed in water for The first mixing operation is to obtain the A component containing hydroxyl groups, and then the second mixing operation is performed on the polymer polyol, polyph...

Embodiment 1

[0061]Place polyether polyol 25kg, isophorone diisocyanate 0.01kg, flame retardant 38kg, first catalyst 3kg, nucleating agent 2kg, chain extender 0.01kg, crosslinking agent 0.01kg and thixotropic agent 0.01kg in Carry out the first mixing operation in 1kg of water to obtain A component; carry out the second mixing operation to polymer polyol 50kg, polyphenyl polymethylene polyisocyanate 40kg and the second catalyst 0.01kg to obtain B component; Part and B component are sealed and stored separately.

Embodiment 2

[0063] Put 25kg of polyether polyol, 0.5kg of isophorone diisocyanate, 50kg of flame retardant, 6kg of first catalyst, 3kg of nucleating agent, 0.5kg of chain extender, 0.5kg of crosslinking agent and 0.5kg of thixotropic agent in Carry out the first mixing operation in 0.01kg water to obtain A component;

[0064] 50kg of polymer polyol, 50kg of polyphenyl polymethylene polyisocyanate and 0.5kg of the second catalyst are carried out for the second mixing operation to obtain the B component;

[0065] Keep components A and B separately sealed.

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Abstract

The invention provides a foaming sealant, a preparation method thereof and a sealing system. The foaming sealant comprises a component A and a component B, wherein the component A comprises polyetherpolyol, isophorone diisocyanate, a flame retardant, a first catalyst, a nucleating agent, a chain extender, a cross-linking agent, a thixotropic agent and water; and the component B comprises polymerpolyol, polyphenyl polymethylene polyisocyanate and a second catalyst. The foaming sealant is good in fireproof effect, high in curing speed and good in plugging effect, and a plugging block obtainedafter curing has good performance.

Description

technical field [0001] The invention relates to the technical field of sealing fireproof materials, in particular to a foaming sealant, a preparation method thereof, and a sealing system. Background technique [0002] At present, for rapid construction, there are mainly two ways to quickly seal the space that needs to be sealed. One is to use the plugging block to plug into the space that needs to be sealed for sealing, and the other is to use Spray the foaming agent or styrofoam on the space that needs to be sealed and sealed. After the foaming agent or styrofoam solidifies to form a blocking block, the sealing space is sealed. Both methods of sealing Sealing, fire insulation and sound insulation effects. [0003] However, the traditional plugging block plugging construction has problems such as poor sealing effect and low sealing efficiency of small cavities, while the traditional styrofoam plugging operation has a long curing time, is not easy to dry, and the cured plugg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J11/04C09J11/06C09J11/08C08G18/76C08G18/75C08G18/66C08G18/63C08G18/48C08G18/50C08G18/32C08G101/00
CPCC08G18/482C08G18/5024C08G18/63C08G18/6677C08G18/6685C08G18/6688C08G18/755C08G18/7664C08G2170/60C08K2003/2224C08K2003/2227C08K2003/2265C08K2003/323C08K2003/387C08L2201/02C09J11/04C09J11/06C09J11/08C09J175/08C08L83/04C08K5/523C08K9/00C08K3/04C08K3/32C08K3/22C08K3/38C08K5/34922
Inventor 胡涛王巍巍
Owner 广东黑卫防火技术有限公司
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