Two-component organic silicon sealant and application thereof in LOW-E hollow glass

A silicone and sealant technology, used in adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor bonding stability and low strength retention rate, and achieve stable bonding strength and high viscosity. The effect of contact strength retention

Active Publication Date: 2020-04-17
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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  • Two-component organic silicon sealant and application thereof in LOW-E hollow glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Low-E two-component silicone sealant for insulating glass is composed of the following raw materials in parts by mass:

[0022] Component A: 26 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 20000mPa·s, 20 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 80000mPa·s, and hydroxyl-terminated polydimethylsiloxane with a viscosity of 50mPa·s 1.5 parts of base silicone oil and 52.5 parts of active nano-calcium carbonate are stirred evenly in a mixing and stirring device;

[0023] Component B: R 1 For methyl, ethyl, propyl, methoxy, ethoxy and R 2 Combination of 21 parts of methyl and ethyl cross-linking agents, R 3 Aminopropyl, (2,3-epoxypropoxy)propyl, (2-aminoethyl)-3-aminopropyl and R 4 19 parts of methyl and ethyl coupling agent combinations, 15 parts of carbon black, 45 parts of simethicone oil with a viscosity of 350 mPa s and 0.2 parts of dicaprate tin diformate, and stir evenly in a mixing and stirring device under vacuu...

Embodiment 2

[0026] Low-E two-component silicone sealant for insulating glass is composed of the following raw materials in parts by mass:

[0027] Component A: 24 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 6000mPa·s, 16 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 80000mPa·s, and dimethyl silicone oil with a viscosity of 350mPa·s 5 parts and 55 parts of active nano-calcium carbonate, stir in mixing and stirring equipment;

[0028] Component B: R 1 For methyl, ethyl, propyl, phenyl, methoxy, ethoxy and R 2 Combination of 25 parts of cross-linking agent for methyl, ethyl and phenyl, R 3 Aminopropyl, (2,3-epoxypropoxy)propyl, (2-aminoethyl)-3-aminopropyl and R 4 Combination of 25 parts of methyl and ethyl coupling agent, 13 parts of carbon black, 36.5 parts of simethicone oil with a viscosity of 350 mPa s and 0.5 part of dibutyltin dilaurate, and stir evenly in a mixing and stirring device under vacuum ;

[0029] At room temperature, c...

Embodiment 3

[0031] Low-E two-component silicone sealant for insulating glass is composed of the following raw materials in parts by mass:

[0032] Component A: 26 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 20000mPa·s, 26 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 80000mPa·s, and hydroxyl-terminated polydimethylsiloxane with a viscosity of 50mPa·s 1.5 parts of base silicone oil and 46.5 parts of active nano-calcium carbonate are stirred evenly in a mixing and stirring device;

[0033] Component B: R 1 For methyl, ethyl, propyl, methoxy, ethoxy and R 2 Combination of 19 parts of methyl and ethyl cross-linking agents, R 3 Aminopropyl, (2,3-epoxypropoxy)propyl, (2-aminoethyl)-3-aminopropyl and R 4 Combining 21 parts of methyl and ethyl coupling agents, 15 parts of carbon black, 45 parts of simethicone oil with a viscosity of 350 mPa·s and 0.2 parts of dicaprate tin diformate, and stir evenly in a mixing and stirring device under vacuum;...

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Abstract

The invention belongs to the field of organic silicon sealing materials, and particularly relates to a two-component organic silicon sealant and application thereof in LOW-E hollow glass. The double-component organic silicon sealant comprises a component A and a component B, the double-component organic silicon sealant can form a stable bonding layer on the surface of LOW-E hollow glass, provide stable bonding strength, and achieve relatively high bonding strength under various aging conditions; and compared with common LOW-E hollow glass sealants on the market at present, the advantages are that: (1) normal-temperature cohesiveness and soaking aging cohesiveness are both subjected to 100% cohesive failure, and the strength retention rate is 90% or above; (2) water quality aging cohesiveness is less than 20% interface damage, and the strength retention rate is more than 75%; and (3) the high-temperature and high-humidity aging cohesiveness and the strength retention rate are obviouslysuperior to those of the existing products in the market.

Description

technical field [0001] 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. Background technique [0002] The insulating glass unit system is widely used in various forms of buildings such as residences, shopping malls, hotels, office buildings, airport terminals, hospitals, stations, etc. due to its performance in sound insulation and noise reduction, energy saving and heat insulation, etc. For doors and windows of trains, commercial vehicles, ships, etc. Among them, LOW-E insulating glass occupies the largest market share in the current insulating glass unit system due to its outstanding heat insulation performance and good light transmission performance. [0003] LOW-E insulating glass is a film composed of multiple layers of metal and other various compounds coated on the glass surface. This multi-layer coating endows LOW-E insulating glass with excellent heat ...

Claims

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Application Information

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Patent Type & Authority Applications(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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