A kind of manufacturing method of dimming laminated glass

Abstract

The invention relates to the technical field of laminated glass lamination, and in particular to a manufacturing method of dimming laminated glass. The manufacturing method comprises the following steps of laminating a first glass substrate, a first EVA adhesion layer, a liquid crystal dimming membrane, a second EVA adhesion layer and a second glass substrate together in sequence so as to form a laminated body; placing the laminated body between a first film base and a second film base, and bonding the peripheral part of the first film base and the peripheral part of the second film base together through a sealant to form a vacuum bag so as to ensure that the laminated body is sealed in the vacuum bag; and vacuumizing the vacuum bag under the room temperature and setting the vacuum degreeto be -0.08 to -0.1 MPa; placing the vacuum bag in a high-pressure kettle, carrying out heating and pressurizing, carrying out cooling and decompression, and finally removing the vacuum bag to obtainthe dimming laminated glass. The manufacturing method has the advantages of being good in adhesion and appearance effects, eliminating the bubbles and adhesive failure between the dimming membrane andthe adhesion layer, and eliminating the appearance defects at the edge.

Description

Technical field: [0001] The invention relates to the technical field of laminated glass lamination, in particular to a method for manufacturing light-adjustable laminated glass. Background technique: [0002] Laminated glass is made of two or more pieces of glass with one or more layers of organic polymer intermediate film between them. A bonded composite glass product. Among them, PVB is a commonly used intermediate film for vehicle laminated glass. In order to realize the dimming function, a liquid crystal dimming layer is usually set between two pieces of glass of the laminated glass, and PVB is respectively set on both sides of the laminated glass to adhere to the two pieces of glass. [0003] At present, the preparation method of dimming laminated glass for vehicles is mainly to compound the dimming film through the lamination process. Remove the excess PVB part of the edge; 2) Initial pressure: Put a rubber ring on the edge of the laminate, and take out more than 70...

AI Technical Summary

Problems solved by technology

[0004] Due to the lack of adhesion between the outer layer of the liquid crystal dimming film and PVB, after the above-mentioned high-pressure process, defects such as air bubbles and debonding often appear between the dimming film and PVB, and there will be a transparent boundary line at the edge of the dimming film other appearance defects

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