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A two-component silicone sealant and its application in gas-filled insulating glass

A silicone and sealant technology, applied in adhesives, climate sustainability, non-polymer adhesive additives, etc., can solve the problem that silicone sealants cannot be used as secondary sealants for inflatable insulating glass units

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 object of the present invention is to provide a two-component silicone sealant to solve the problem that the silicone sealant cannot be used as a secondary sealant for gas-filled insulating glass units

Method used

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  • A two-component silicone sealant and its application in gas-filled insulating glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The two-component silicone sealant for inflatable insulating glass unit is composed of the following raw materials in parts by mass:

[0020] Component A: 20 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 1500 mPa·s, 18 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 20,000 mPa·s, and a hydroxyl-terminated dimethylsiloxane with a viscosity of 50 mPa·s 1.5 parts of base silicone oil, 50.5 parts of active nano-calcium carbonate and 10 parts of precipitated calcium carbonate with a particle size of 5 μm, stir evenly in the mixing and stirring equipment;

[0021] Component B: R 1 is methyl, ethyl, propyl, methoxy, ethoxy and R 2 21 parts of crosslinking agent combination of methyl and ethyl, R 3 is aminopropyl, (2,3-glycidoxy)propyl, (2-aminoethyl)-3-aminopropyl and R 4 Combine 19 parts of methyl and ethyl coupling agents, 15 parts of carbon black, 45 parts of dimethicone with a viscosity of 350 mPa·s and 0.2 parts of tin dica...

Embodiment 2

[0024] The two-component silicone sealant for inflatable insulating glass unit is composed of the following raw materials in parts by mass:

[0025] Component A: 35 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 3000 mPa·s, 5 parts of dimethicone with a viscosity of 350 mPa·s, 50 parts of active nano-calcium carbonate and precipitated calcium carbonate with a particle size of 1 μm 10 servings, stir evenly in the mixing and stirring equipment;

[0026] Component B: R 1 is methyl, ethyl, propyl, phenyl, methoxy, ethoxy and R 2 25 parts of cross-linking agent combination of methyl, ethyl and phenyl, R 3 is aminopropyl, (2,3-glycidoxy)propyl, (2-aminoethyl)-3-aminopropyl and R 4 Combine 25 parts of methyl and ethyl coupling agents, 13 parts of carbon black, 36.5 parts of dimethicone with a viscosity of 350 mPa·s and 0.5 parts of dibutyltin dilaurate, and stir them evenly in a mixing and stirring equipment in a vacuum. ;

[0027] At room temperature, com...

Embodiment 3

[0029] The two-component silicone sealant for inflatable insulating glass unit is composed of the following raw materials in parts by mass:

[0030] Component A: 40 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 6000 mPa·s, 1.5 parts of hydroxyl-terminated dimethicone with a viscosity of 50 mPa·s, 46.5 parts of active nano-calcium carbonate and a precipitate with a particle size of 2 μm 12 parts of calcium carbonate, stir evenly in the mixing and stirring equipment;

[0031] Component B: R 1 is methyl, ethyl, propyl, methoxy, ethoxy and R 2 19 parts of cross-linking agent combination of methyl and ethyl, R 3 is aminopropyl, (2,3-glycidoxy)propyl, (2-aminoethyl)-3-aminopropyl and R 4 A combination of 21 parts of methyl and ethyl coupling agents, 15 parts of carbon black, 45 parts of dimethicone with a viscosity of 350 mPa·s, and 0.2 parts of tin dicaprate dicarboxylate were mixed uniformly in a mixing and stirring equipment in vacuum;

[0032] At room...

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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 gas-filled hollow glass. The two-component silicone sealant includes components A and B. The two-component silicone sealant forms a stable bond with the inflatable insulating glass, and has extremely high strength and hardness, and fixes the inflatable insulating glass to prevent The relative displacement between insulating glasses meets the long-term retention rate of inert gas, and according to the gas sealing durability test in GB / T 11944 and EN 1279‑3, the inert gas retention rate is above 85%, and the inert gas retention rate of most products is The rate is higher than 90%, which is much higher than the performance of commercially available products.

Description

technical field [0001] The invention belongs to the field of organosilicon sealing materials, in particular to a two-component organosilicon sealant and its application in inflatable 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. In the doors and windows of trains, commercial vehicles, ships, etc. In order to obtain better thermal insulation and energy-saving performance, the insulating glass unit needs a lower U value of heat transfer, so the inner cavity of the insulating glass unit must be inflated, generally with air or inert gas. Among them, the effect of inert gas filling is obviously better than that of air filling, so the insulating glass unit filled with inert gas is generally called a gas-filled insulating glass unit. [0003] In order to maintain the long-term stable thermal insu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09J11/04C03C27/12
CPCC09J183/04C09J11/04C03C27/10C08L2205/035C08L2205/025C08K2003/265C08K2201/014C08K2201/011C08K2201/003C08L83/04C08K13/02C08K3/26Y02B30/90
Inventor 李超吴海林赵林江李镕晙倪建华倪皇伟凌建峰刘明沈翔徐俊何永富
Owner HANGZHOU ZHIJIANG NEW MATERIAL CO LTD