Why Switchable Film Break When Laminating with Glass and EVA Interlayer Film？
Wrong Concept:
Some customers made the Smart Glass with EVA Interlayer Film, and the
Switchable Transparent Film break away it self, so he asks EVA
Interlayer Film Manufacturers whether the EVA Interlayer Film produce
some chemical substance that cause the Switchable Transparent Film
breaking away itself? Composition Of Switchable Film:
The answer is no. So then what is the real why? Because the Switchable
Transparent Film itself is a laminated Film.
Composition of Switchable Transparent Film: The polymer and the liquid crystals are encapsulated in the Switchable
Transparent Film. Both faces of the film are covered with a
transparent, ITO coating. Both ITO coatings are connected to a flat
electrical busbar, which is fixed on one of the edges of the film. Reason Why Switchable Film Delamination
When the Switchable Transparent Laminated Glass(Glass+EVA
Film+Switchable Film+EVA Film+Glass) is being heated and then cooled,
the EVA Interlayer Film, Glass and Switchable Transparent Film will
follow the Expand from Heat and Contract from Cold rule. But Switchable Transparent Film is WEAKER in the Expand from Heat and
Contract from Cold than the EVA Interlayer Film. And also the adhesive
strength between the EVA Interlayer Film and Switchable Transparent
Film is harder than the adhesive strength between the layers inside
the Switchable Transparent Film itself. And the adhesive strength
between the EVA Interlayer Film and glasses is harder than the
adhesive strength between the layers inside the Switchable Transparent
Film itself. That’s the reason why the Switchable Transparent Film
Break away When Laminating with Glass and EVA Interlayer Film，It’s the
EVA Film Shrinkage that break away the Switchable Film. How to Solve:
1.Find a better supplier of EVA Film, whose EVA Film is less in Shrinkage rate.
2. Some EVA Interlayer Film Manufacturers have made the
low-temperature (about 80-85 degree) processing EVA Interlayer Film
dedicated for making Switchable Transparent Laminated Glass.
With using the low-temperature-processing EVA Interlayer Film, you can
solve this problem. ALL RIGHT RESERVED BY:
(Product 1. )Ethylene-Vinyl Acetate EVA Interlayer Film for Safety
Laminated Glass
(Product 2.) China Solar EVA Film for Solar Panel Encapsulation
(Product 3.) China Smart Switchable Film for Privacy Glass, Smart Glass
www.evafilms.com / www.cncnext.com
cnc@cncnext.com/ eva@evafilms.com / benext77@hotmail.com /benext77@gmail.com
Some customers made the Smart Glass with EVA Interlayer Film, and the
Switchable Transparent Film break away it self, so he asks EVA
Interlayer Film Manufacturers whether the EVA Interlayer Film produce
some chemical substance that cause the Switchable Transparent Film
breaking away itself? Composition Of Switchable Film:
The answer is no. So then what is the real why? Because the Switchable
Transparent Film itself is a laminated Film.
Composition of Switchable Transparent Film: The polymer and the liquid crystals are encapsulated in the Switchable
Transparent Film. Both faces of the film are covered with a
transparent, ITO coating. Both ITO coatings are connected to a flat
electrical busbar, which is fixed on one of the edges of the film. Reason Why Switchable Film Delamination
When the Switchable Transparent Laminated Glass(Glass+EVA
Film+Switchable Film+EVA Film+Glass) is being heated and then cooled,
the EVA Interlayer Film, Glass and Switchable Transparent Film will
follow the Expand from Heat and Contract from Cold rule. But Switchable Transparent Film is WEAKER in the Expand from Heat and
Contract from Cold than the EVA Interlayer Film. And also the adhesive
strength between the EVA Interlayer Film and Switchable Transparent
Film is harder than the adhesive strength between the layers inside
the Switchable Transparent Film itself. And the adhesive strength
between the EVA Interlayer Film and glasses is harder than the
adhesive strength between the layers inside the Switchable Transparent
Film itself. That’s the reason why the Switchable Transparent Film
Break away When Laminating with Glass and EVA Interlayer Film，It’s the
EVA Film Shrinkage that break away the Switchable Film. How to Solve:
1.Find a better supplier of EVA Film, whose EVA Film is less in Shrinkage rate.
2. Some EVA Interlayer Film Manufacturers have made the
low-temperature (about 80-85 degree) processing EVA Interlayer Film
dedicated for making Switchable Transparent Laminated Glass.
With using the low-temperature-processing EVA Interlayer Film, you can
solve this problem. ALL RIGHT RESERVED BY:
(Product 1. )Ethylene-Vinyl Acetate EVA Interlayer Film for Safety
Laminated Glass
(Product 2.) China Solar EVA Film for Solar Panel Encapsulation
(Product 3.) China Smart Switchable Film for Privacy Glass, Smart Glass
www.evafilms.com / www.cncnext.com
cnc@cncnext.com/ eva@evafilms.com / benext77@hotmail.com /benext77@gmail.com