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Preparation method of high-displacement dealcoholized flame-retardant fireproof sealant

A fireproof sealant, dealcoholized technology, applied in adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problem that the anti-displacement ability of sealants cannot meet the needs of practical applications, etc.

Active Publication Date: 2022-01-07
CHENGDU GUIBAO SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide high-displacement dealcoholized flame-retardant fireproof sealant to solve the problem that the anti-displacement ability of existing sealants cannot meet the needs of practical applications question

Method used

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  • Preparation method of high-displacement dealcoholized flame-retardant fireproof sealant
  • Preparation method of high-displacement dealcoholized flame-retardant fireproof sealant
  • Preparation method of high-displacement dealcoholized flame-retardant fireproof sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] High-displacement dealcoholized flame-retardant fireproof sealant, in parts by weight, its raw materials include 100 parts of α, ω-dihydroxy polydimethylsiloxane, 5-10 parts of dealcoholized chain extender, reactive plasticizer 30-60 parts of agent, 50-100 parts of calcium carbonate, 40-90 parts of superfine modified flame retardant filler, 25-55 parts of dealcoholization curing agent, 5-20 parts of thixotropic agent and 1 part of the first catalyst.

[0029] The details of raw materials are:

[0030] (1) Dealcohol-type chain extenders include (morpholine methyl) methyldiethoxysilane, N-n-propyl-N-methylformyl-a-(aminomethyl) methyldiethoxy Silane, N-n-propyl-N-carboxymethyl-a-(aminomethyl)methyldimethoxysilane, N-n-butyl-N-carboxymethyl-a-(aminomethyl) Methyldiethoxysilane, N-n-propyl-N-carboxyethyl-a-(aminomethyl)methyldiethoxysilane and N-n-propyl-N-amido-a-( At least one of aminomethyl)methyldiethoxysilanes. The dealcohol-type chain extenders all introduce electron...

experiment example

[0081] Carry out performance test to the product that embodiment and comparative example make, experimental result and experimental method and standard refer to table 5 and table 6.

[0082] Table 5: Relevant test results of Examples 1-6

[0083]

[0084] Table 6: Test results related to Comparative Examples 1-5

[0085]

[0086]

[0087] It can be seen from Examples 1-6 that under the current formula and process requirements, the use of dealcoholized chain extenders, dealcoholized crosslinking agents, and ultrafine modified flame-retardant fillers can meet the performance index requirements, although All characteristics are not described in combination, as long as there is no contradiction in these technical combinations, they should be considered as within the scope of this description

[0088] From comparative example 1, it can be seen that the use of 500,000 viscosity 107 glue and the traditional process of making glue can meet the requirements of low modulus and...

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Abstract

The invention belongs to the technical field of silicone rubber sealing materials, and particularly relates to a high-displacement dealcoholized flame-retardant fireproof sealant and a preparation method thereof. The high-displacement dealcoholized type flame-retardant fireproof sealant is prepared from the following raw materials in parts by weight: 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 5 to 10 parts of dealcoholization type chain extender, 30 to 60 parts of reactive plasticizer, 50 to 100 parts of calcium carbonate, 40 to 90 parts of superfine modified flame-retardant filler, 25 to 55 parts of dealcoholization type curing agent, 5 to 20 parts of thixotropic agent and 1 part of first catalyst. The sealant provided by the invention has excellent chemical stability, weather aging resistance, thixotropy, constructability and the like. The sealant can be used as a sealing material of a building curtain wall, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of silicone rubber sealing materials, and in particular relates to a high-displacement dealcoholization type flame-retardant and fire-proof sealant and a preparation method thereof. Background technique [0002] China's high-rise buildings have developed significantly in modern times. Glass curtain walls have become the mainstream building direction in high-rise buildings, but safety hazards have increased accordingly. Silicone sealants have become one of the preferred sealing materials for building curtain walls due to their good UV resistance, displacement resistance, elastic recovery and excellent adhesion to commonly used curtain wall materials. [0003] Chinese patent CN103160239B discloses a high-displacement-capacity silicone fireproof sealant and a manufacturing method thereof. This scheme uses α, ω-dihydroxypolysiloxane, polydimethylsiloxane, inorganic filler, nitrogen-phosphorus flame retardant, f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/08C08G77/388C08G77/16
CPCC09J183/04C09J11/04C09J11/06C09J11/08C08G77/388C08G77/16C08K2003/2224C08K2003/2227C08L2201/02C08L83/06C08K13/06C08K9/04C08K3/26C08K3/22C08K7/26C08K5/5419C08L83/04
Inventor 王有治王腾腾王昕王天强黄强
Owner CHENGDU GUIBAO SCI & TECH
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