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Preparation method of two-component silicone sealant for laminated glass

A laminated glass, two-component technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., to slow down debonding and air bubbles and other lesions, reduce moisture intrusion, and slow down the effects of lesions

Inactive Publication Date: 2018-03-09
安徽鑫盛玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these materials have a certain degree of thickness, which can prevent the intrusion of most water and moisture, but because they still have a certain degree of moisture permeability, it is still impossible to avoid the occurrence of debonding and air bubbles.

Method used

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Embodiment Construction

[0018] A preparation method of silicone two-component sealant for laminated glass, comprising the following steps:

[0019] (1) Mix α,ω-dihydroxypolydimethylsiloxane, a filler equivalent to 50% of the weight of α,ω-dihydroxypolydimethylsiloxane, and a filler equivalent to α,ω-dihydroxypolydimethylsiloxane After mixing methyl silicone oil with 20% weight of base siloxane, vacuumize and stir in a planetary mixer for 0.5h to obtain component A;

[0020] (2) Mix absolute ethanol and deionized water at a volume ratio of 8:1 to obtain a mixed solvent, and mix nano-zeolite molecular sieve, nano-titanium dioxide equivalent to 10% of the weight of nano-zeolite molecular sieve, and 10-15% of the weight of nano-zeolite molecular sieve The silane coupling agent is added to the mixed solvent equivalent to 60 times the weight of nano-zeolite molecular sieves and mixed evenly, first reacted at 60°C for 4h, then dried at 100°C, and finally heat-treated at 300°C for 3h under an inert atmospher...

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Abstract

The invention discloses a preparation method of a two-component silicone sealant for laminated glass. The preparation method comprises the following steps: by taking a silane coupling agent as an adhesive, supporting nanometer titania onto a nano-zeolite molecular sieve by utilizing a sol-gel reaction, drying, and performing high-temperature thermal treatment so as to obtain a titania-zeolite molecular sieve composite material; and mixing with raw materials such as alpha,omega-dyhydroxyl polydimethylsiloxane, alkyl-terminated polydimethylsiloxane, methyl silicone oil, a cross-linking agent, acatalyst and the like, thereby obtaining the two-component silicone sealant for laminated glass. The two-component silicone sealant for laminated glass prepared by the method disclosed by the invention can achieve the effects of effectively reducing moisture intrusion and further well alleviating edge abhesion, bubbles and other lesions of the laminated glass, and is excellent in aging resistanceand high in durability.

Description

technical field [0001] The invention relates to the technical field of sealing materials, in particular to a method for preparing a silicone two-component sealant for laminated glass. Background technique [0002] Laminated glass is a product obtained by bonding two or more pieces of glass with transparent bonding materials. Most of the bonding materials are thermoplastic resins, such as PVB, EVA, SGP, TPU, etc., which have excellent safety and The permeability of light and the function of blocking ultraviolet rays are widely used in lighting roofs, canopies, doors and windows of buildings, as well as walls and interior decoration partitions. Thermoplastic resin and glass are bonded together by intermolecular adhesion. Once the bonding layer at the edge of the glass is eroded by the outside world and degumming and blistering occur, it will not only seriously affect the appearance of the laminated glass, but also cause the laminated glass to lose its quality. The mechanical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06
CPCC09J183/06C08K2201/011C08L2201/08C08L2201/14C08L2205/025C08L2205/03C09J11/04C09J11/06C08L83/04C08K9/02C08K7/26C08K3/36C08K5/5419
Inventor 孙洪涛
Owner 安徽鑫盛玻璃有限公司
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