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A two-component silicone sealant and its application in low-e insulating glass

A silicone and sealant technology, applied in adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve problems such as poor bonding stability and low strength retention

Active Publication Date: 2022-05-24
HANGZHOU ZHIJIANG NEW MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first purpose of the present invention is to solve the problems of poor bonding stability between silicone sealant and LOW-E insulating glass, low strength retention rate after aging, etc., a two-component silicone sealant

Method used

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  • A two-component silicone sealant and its application in low-e insulating glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] LOW-E two-component silicone sealant for insulating glass consists of the following raw materials according to the mass parts:

[0022] A component: 26 parts of terminal hydroxy polydimethylsiloxane with a viscosity of 20000mPa·s, 20 parts of terminal hydroxy polydimethylsiloxane with a viscosity of 80000mPa·s, 1.5 parts of terminal hydroxydimethyl silicone oil with a viscosity of 50 mPa·s and 52.5 parts of active nano calcium carbonate, stirred evenly in a mixing and mixing equipment;

[0023] Component B: R 1 It is methyl, ethyl, propyl, methoxy, ethoxy and R 2 A crosslinker combination of methyl and ethyl 21 parts, R 3 It is aminopropyl, (2,3-epoxypropoxy) propyl, (2-aminoethyl)-3-aminopropyl and R 4 19 parts of the coupling agent combination of methyl and ethyl, 15 parts of carbon black, 45 parts of dimethicone with a viscosity of 350mPa·s and 0.2 parts of tin dicalate dicarboxylate, and stirred evenly in vacuum in a mixing and mixing equipment;

[0024] At room tempera...

Embodiment 2

[0026] LOW-E two-component silicone sealant for insulating glass consists of the following raw materials according to the mass parts:

[0027] A component: 24 parts of terminal hydroxy polydimethylsiloxane with a viscosity of 6000mPa·s, 16 parts of terminal hydroxy polydimethylsiloxane with a viscosity of 80000mPa·s, 5 parts of dimethicone with a viscosity of 350mPa·s and 55 parts of active nano calcium carbonate, stirred evenly in a mixing and mixing equipment;

[0028]Component B: R 1 It is methyl, ethyl, propyl, phenyl, methoxy, ethoxy and R 2 A crosslinker combination of methyl, ethyl and phenyl 25 parts, R 3 It is aminopropyl, (2,3-epoxypropoxy) propyl, (2-aminoethyl)-3-aminopropyl and R 4 25 parts of the coupling agent combination of methyl and ethyl, 13 parts of carbon black, 36.5 parts of dimethicone with a viscosity of 350mPa·s and 0.5 parts of dibutyl tin dilaurate, stirred evenly in vacuum in a mixing and mixing equipment;

[0029] At room temperature, components A and ...

Embodiment 3

[0031] LOW-E two-component silicone sealant for insulating glass consists of the following raw materials according to the mass parts:

[0032] A component: 26 parts of terminal hydroxy dimethicone with a viscosity of 20000mPa·s, 26 parts of terminal hydroxy polydimethylsiloxane with a viscosity of 80000mPa·s, 1.5 parts of terminal hydroxydimethylsilicone with a viscosity of 50 mPa·s and 46.5 parts of active nano calcium carbonate, stirred evenly in a mixing and mixing equipment;

[0033] Component B: R 1 It is methyl, ethyl, propyl, methoxy, ethoxy and R 2 A crosslinker combination of methyl and ethyl 19 parts, R 3 It is aminopropyl, (2,3-epoxypropoxy) propyl, (2-aminoethyl)-3-aminopropyl and R 4 21 parts of the coupling agent of methyl and ethyl, 15 parts of carbon black, 45 parts of dimethicone with a viscosity of 350mPa·s and 0.2 parts of tin dicalate dicarboxylate, and stirred evenly in vacuum in a mixing mixing equipment;

[0034] At room temperature, components A and B are m...

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Abstract

The invention belongs to the field of silicone sealing materials, in particular to a two-component silicone sealant and its application in LOW-E insulating glass. The two-component silicone sealant includes component A and component B. The two-component silicone sealant can form a stable bonding layer on the surface of LOW-E insulating glass, provide stable bonding strength, and It can achieve a very high adhesive strength retention rate under various aging conditions. Compared with the common LOW‑E insulating glass sealant on the market, it has the following beneficial effects: (1) Both the normal temperature adhesion and the water immersion aging adhesion are 100% Cohesive failure, and the strength retention rate is above 90%; (2) The aging adhesion of water purple is less than 20%, and the interface damage is less than 75%, and the strength retention rate is above 75%; (3) The high temperature and high humidity aging adhesion and The strength retention rate is significantly better than the existing products in the market.

Description

Technical field [0001] The present invention belongs to the field of silicone sealing materials, in particular to a two-component silicone sealant and applications in LOW-E insulating glass. Background [0002] Insulating glass unit system is widely used in various forms of buildings such as residential, shopping malls, hotels, office buildings, airport terminals, hospitals, stations and other forms of buildings due to its performance in sound insulation and noise reduction, energy saving and heat insulation, etc., and is also used in doors and windows such as trains, commercial vehicles, and ships. Among them, LOW-E insulating glass occupies the largest market proportion of insulating glass unit systems due to its outstanding thermal insulation performance and good light transmission. [0003] LOW-E insulating glass is a film coated with multiple layers of metal and various other compounds on the surface of the glass. This multi-layer coating gives LOW-E insulating glass excelle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/08
CPCC09J183/04C09J11/04C09J11/06C09J11/08C08L2201/08C08L2205/025C08L2205/035C08L2205/03C08K2201/011C08K2003/265C08L83/04C08K13/02C08K3/26C08K3/04
Inventor 李超赵林江吴海林李镕晙刘明沈翔徐俊倪建华倪皇伟凌建峰何永富
Owner HANGZHOU ZHIJIANG NEW MATERIAL CO LTD
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