Edge sealing structure and sealing method of sandwich glass

Abstract

The invention relates to an edge sealing structure and a sealing method of sandwich glass. A covering sealing layer is arranged on the edge surface of the sandwich glass; the covering sealing layer is a metal foil layer, or a metal-coated adhesive tape layer or a metal oxide-coated adhesive tape layer or a metal paint layer; and the section of the covering sealing layer is a U-shaped section. The sealing structure disclosed by the invention can be used for preventing the damages of water vapor and other micro-molecules to a certain extent, so that the sandwich glass can be used under bad environments including a wet environment, a hot environment and the like without appearing of the phenomena of adhesive tape cracking and adhesive tape dropping. Moreover, the service life of the sandwich glass curtain wall can be prolonged.

Description

Technical field [0001] The present invention relates to an edge sealing structure and sealing method of laminated glass. The present invention is to provide a covering and sealing layer on the edge surface of the laminated glass. The covering and sealing layer is a metal foil layer, or a metal coating tape layer, or Metal oxide coated tape layer, or metal paint layer. Background technique [0002] In the prior art, laminated glass includes general architectural laminated glass, automotive glass, dimming glass (also known as smart glass, electric control glass, magic glass, PDLC glass, etc.), etc., which are widely used in construction, transportation, and finance. , Decoration and other fields. Existing laminated glass generally includes an outer glass layer and an inner glue layer. Among them, dimming glass and smart glass also include a liquid crystal core layer sandwiched between the glue layer. The transparent glue layer is generally PVB film or EVA film. Laminated glass ge...

AI Technical Summary

Problems solved by technology

Chinese patent 01125174.3 discloses a method for edge sealing of laminated glass. Neutral silicone sealant is used to seal the edge of laminated glass. This sealing method cannot achieve real sealing due to the poor airtightness of silicone glue. effect

Chinese patent application (patent application No. 200810093662.2), U.S. patent (patent No. US6096148) and U.S. patent (patent No. US6414077B1) respectively disclose methods for sealing the edge of laminated glass with a sealant. This sealing method uses epoxy , acrylic or polyurethane high-barrier materials, but because these high-barrier materials are polymer plastics, they can block the erosion of water on the adhesive layer, but they have poor barrier properties to water vapor and other small molecules, especially in In a longer period of time or in a more severe humid and hot environment, the problem of glue opening on the edge of the laminated glass will still occur; at the same time, in the process of brushing the edge sealant for sealing, it is necessary to dig out the PVB or EVA on the edge of the laminated glass to form a groove. Then fill the edge sealant tightly and smooth the surface. After drying or curing, the edge sealant finally becomes a sealing material. However, the uniformity of the groove is not easy to control. The drying and curing process of the edge sealant requires a certain amount of time and energy. Consumption, low production efficiency

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