Silicone resin type two-component elastic silicone sealant for insulating glass and preparation method thereof

A silicone sealant and silicone resin technology, applied in the field of sealants, can solve the problems of small compression set and unsatisfactory performance, and achieve the effects of small compression set, improved mechanical strength and good insulation.

Active Publication Date: 2019-12-17
山东宝龙达实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a silicone resin type two-component elastic silicone sealant for insulating glass with excellent bonding performance, small compression set, excellent elasticity and a preparation method thereof, aiming at It can be used in insulating glass sealing and other fields to solve the problem that some performances of existing silicone sealants cannot meet the requirements.

Method used

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  • Silicone resin type two-component elastic silicone sealant for insulating glass and preparation method thereof
  • Silicone resin type two-component elastic silicone sealant for insulating glass and preparation method thereof
  • Silicone resin type two-component elastic silicone sealant for insulating glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A silicone type two-component elastic silicone sealant for insulating glass, comprising A component and B component, composed as follows by weight:

[0053] Component A: 100 parts of α-ω-dihydroxyl-terminated polysiloxane with a viscosity of 7000 cp, 15 parts of dimethylpolysiloxane with a viscosity of 500 cp, D chain (flexible chain) and T chain ( Rigid chain link) 10 parts of methyl ethoxy silicone resin with a molar ratio of 4:1, 7 parts of methyl MQ silicone resin (the ratio of M / Q is 0.8), 5 parts of fumed white carbon black, 50 parts of nano-active calcium carbonate part, 20 parts of heavy calcium carbonate;

[0054] Component B: 50 parts of dimethyl polysiloxane with a viscosity of 700cp, 7 parts of carbon black, 7 parts of tetraethoxysilane, 12 parts of polymethyltriethoxysilane, γ-aminopropyl triethoxy 10 parts of silane, 0.5 part of ethyl diacetoacetate diisopropyl titanate, 1 part of dibutyltin dilaurate, and 0.05 part of cyanoacrylate.

[0055] The prepara...

Embodiment 2

[0061] A silicone type two-component elastic silicone sealant for insulating glass, comprising A component and B component, composed as follows by weight:

[0062] Component A: 100 parts of α-ω-dihydroxyl-terminated polysiloxane with a viscosity of 6000 cp, 12 parts of dimethyl polysiloxane with a viscosity of 600 cp, and the molar ratio of D chain unit to T chain unit is 3:1 8 parts of methyl methoxy silicone resin, 7 parts of phenyl MQ silicone resin (the ratio of M / Q is 0.8), 10 parts of fumed silica, 40 parts of nano-active calcium carbonate, 20 parts of heavy calcium carbonate;

[0063] Component B: 50 parts of dimethylpolysiloxane with a viscosity of 900cp, 7 parts of carbon black, 9 parts of propyl orthosilicate, 12 parts of polymethyltriethoxysilane, and 10 parts of tetraisopropyl titanate , 0.5 part of ethyl diacetoacetate diisopropyl titanate, 1 part of dibutyltin dilaurate, and 0.05 part of benzotriazole compound.

[0064] The preparation steps are as follows:

[...

Embodiment 3

[0070] A silicone type two-component elastic silicone sealant for insulating glass, comprising A component and B component, composed as follows by weight:

[0071] Component A: 100 parts of α-ω-dihydroxyl-terminated polysiloxane with a viscosity of 8000 cp, 10 parts of dimethyl polysiloxane with a viscosity of 200 cp, and the molar ratio of D chain unit to T chain unit is 10:1 11 parts of phenylethoxy silicone resins, 6 parts of phenyl MQ silicone resins (the ratio of M / Q is 1), 4 parts of fumed silica, 50 parts of nano-active calcium carbonate, 20 parts of heavy calcium carbonate;

[0072] Component B: 50 parts of dimethylpolysiloxane with a viscosity of 200cp, 7 parts of carbon black, 7 parts of tetraethyl orthosilicate, 12 parts of methyltriethoxysilane, N-β-(aminoethyl) - 10 parts of γ-aminopropyltrimethoxysilane, 0.5 parts of ethyl diacetoacetate diisopropyl titanate, 1.2 parts of dibutyltin dilaurate, and 0.05 parts of benzophenone compound;

[0073] The preparation ste...

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Abstract

The invention relates to silicon resin type bi-component elastic silicone sealant for hollow glass and a preparing method thereof. The sealant comprises a component A and a component B; the component A is prepared from, by weight, 100 parts of alpha-omega-dyhydroxy-terminated polysiloxane, 10-20 parts of dimethyl polysiloxane, 5-15 parts of flexible alkoxy silicon resin, 5-10 parts of MQ silicon resin and 70-85 parts of filler; the component B is prepared from, by weight, 40-60 parts of dimethyl polysiloxane, 5-10 parts of carbon black, 10-25 parts of alkoxy silane crosslinking agent, 5-20 parts of coupling agent, 1-2 parts of catalyst and 0.01-0.1 part of ultraviolet absorbent. By means of the synergistic effect of flexible alkoxy silicon resin and MQ silicon resin, the prepared silicone sealant has excellent elasticity and impact resistance and lasting high-strength adhesive properties, is high in peel strength, high in mechanical strength, high in high and low temperature resistance, high in weather fastness and small in compression set.

Description

technical field [0001] The invention relates to a silicone resin type two-component elastic silicone sealant for insulating glass and a preparation method thereof, belonging to the technical field of sealants. Background technique [0002] Insulating glass has the characteristics of heat preservation, heat insulation, sound insulation, and anti-condensation, and is generally recognized as an energy-saving and environmentally friendly product. The airtightness and structural stability of the insulating glass system are related to the type and performance of the sealant used. At present, silicone glue is widely used in China, mainly due to its excellent aging resistance, compatibility and good bonding performance with glass and substrates. [0003] Chinese patent document CN 101580688 A discloses the formulation and preparation of a two-component silicone sealant for construction, including component A and component B, and the quality composition of each component is as follow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06C09J11/08
CPCC08K2201/011C08K2201/014C08L2201/08C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J183/06C08L83/04C08K13/02C08K5/315C08K5/3475C08K5/07C08K5/10C08K5/3492
Inventor 曾庆铭曹健
Owner 山东宝龙达实业集团有限公司
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