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Silicone structural adhesive for insulating glass and preparation method thereof

A technology for structural adhesives and glass, applied in adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of slow curing rate of structural adhesives, easy agglomeration of graphene, increased manufacturing costs, etc., to improve strength and High temperature strength retention rate, low water vapor permeability, and the effect of improving tensile strength

Active Publication Date: 2022-07-29
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent CN 106281205 A introduces graphene oxide-like two-dimensional layered nanomaterials to modify silicone sealant, thereby improving its barrier performance and mechanical strength, but its preparation method is complicated and graphene is easy to agglomerate, which is not conducive to actual production
Patent CN 107090257 A improves the overall performance of structural adhesives by introducing modified butyl rubber, but the introduction of resin adhesives often leads to slow curing rates of structural adhesives, which is not conducive to actual construction
Patent CN 107057584A improves the mechanical properties of the sealant by adding nano-copper powder, which also significantly increases the manufacturing cost

Method used

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  • Silicone structural adhesive for insulating glass and preparation method thereof
  • Silicone structural adhesive for insulating glass and preparation method thereof
  • Silicone structural adhesive for insulating glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] A component (parts by weight):

[0075] Take 100 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 20,000 mPa·s and 10 parts of dimethicone with a viscosity of 400 mPa·s and add them to the kneader to stir and disperse. After 5 minutes, 100 parts of 100 nm The nanometer active calcium carbonate of particle size is added therein to make the glue (ie, the hydroxyl-terminated polydimethylsiloxane and dimethicone) completely cover the powder to form a self-leveling base material, and the reaction temperature is controlled to be 80° C., stirring and mixing 1h to obtain component A, which is used after grinding.

[0076] Component B (parts by weight):

[0077] Add 100 parts of dimethyl silicone oil with a viscosity of 1000 mPa·s, 4 parts of artificial graphite KS-6, and 96 parts of carbon black into the planetary machine vacuum (vacuum degree of -0.095MPa) and stir, and keep the temperature at 100 ° C for 30 minutes, and then Add 50 parts of composite cr...

Embodiment 2

[0080] A component (parts by weight):

[0081] Take 100 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 20,000 mPa·s and 10 parts of dimethicone with a viscosity of 400 mPa·s and add them to the kneader to stir and disperse. After 5 minutes, 100 parts of 200 nm Nanometer active calcium carbonate with particle size was added to make the glue completely cover the powder to form a self-leveling base material.

[0082] Component B (parts by weight):

[0083] Add 100 parts of dimethyl silicone oil with a viscosity of 1000 mPa·s, 4 parts of KS-6, and 96 parts of carbon black to the planetary machine vacuum (vacuum degree of -0.095MPa) and stir, and keep the temperature at 100 ° C for 30 minutes, and then add 50 parts of composite cross-linking agent, 50 parts of composite coupling agent and 1 part of composite catalyst, and stirred for 10 minutes at a constant 100°C under nitrogen protection to obtain component B;

[0084] Then, according to the mixing volume...

Embodiment 3

[0086] A component (parts by weight):

[0087] Take 100 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 20,000 mPa·s and 10 parts of dimethicone with a viscosity of 400 mPa·s and add them to the kneader to stir and disperse. After 5 minutes, 50 parts of 100 nm , 50 parts of nanometer active calcium carbonate with a particle size of 200nm are added to make the glue completely cover the powder to form a self-leveling base material, control the reaction temperature to 80 ° C, stir and mix for 1h to obtain the A component, and grind it for later use.

[0088] Component B (parts by weight):

[0089] Add 100 parts of dimethyl silicone oil with a viscosity of 1000 mPa·s, 4 parts of KS-6, and 96 parts of carbon black to the planetary machine vacuum (vacuum degree of -0.095MPa) and stir, and keep the temperature at 100 ° C for 30 minutes, and then add 50 parts of composite cross-linking agent, 50 parts of composite coupling agent and 1 part of composite catalyst,...

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Abstract

The invention relates to a silicone structural adhesive for hollow glass and a preparation method thereof. The silicone structural adhesive for insulating glass includes component A and component B. The component A is prepared from the following components in parts by weight: 100 parts of organopolysiloxane polymer, 60-150 parts of filler, 5 to 25 parts of plasticizer; the B component is prepared from the following raw materials by weight: 100 parts of dimethyl silicone oil, 50 to 150 parts of carbon black, 60.5 to 10 parts of KS-60, and 15 to 60 parts of crosslinking agent , 15-60 parts of coupling agent and 0.1-1.5 parts of catalyst. The silicone structural adhesive for insulating glass has high bonding strength, low water vapor permeability and high high temperature strength retention rate.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a silicone structural adhesive for insulating glass and a preparation method thereof. Background technique [0002] At present, the country pays more and more attention to energy-saving and environmental protection materials, and the application of insulating glass in building materials decoration, energy saving, vehicles and refrigeration equipment is gradually improving, and users' demands for its quality and price are becoming more and more strict, requiring it to follow the sealing surface. Shape and deformation, not easy to flow, strong adhesion, long service life. Silicone structural adhesive is an adhesive used to fill configuration gaps to play a sealing role. However, the existing sealant is easy to fall off due to the influence of the environment or its own structure, turn yellow, and has low strength, and the structure changes greatly under high temperature. Due to national ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09J183/06C09J11/04C09J11/06C09J11/08
CPCC09J183/04C09J183/06C09J11/04C09J11/06C09J11/08C08L2201/14C08K2003/265C08K2201/014C08K2201/005C08K2201/011C08L2205/035C08L2205/025C08L2205/03C08L83/04C08K13/02C08K3/04C08K3/26
Inventor 胡帅张宇旋范海健罗银蒋金博
Owner GUANGZHOU BAIYUN CHEM IND
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