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[Data] Measurement of the birefringence of laminate film

Explaining the effects of combining PET and EVA! Introducing measurement results using laminated film.

"Laminating film" is used in various industries to protect the display surface while maintaining the visibility of printed materials by using highly transparent materials. During processing, heat bonding is performed, so it is assumed that the molecular state changes compared to before processing. In this study, we attempted to clarify the residual stress remaining in the product by comparing conditions with and without heat applied to the laminating film, using birefringence. This document presents measurement results using a laminating film composed of polyethylene terephthalate (PET) and ethylene-vinyl acetate (EVA) as an example. [Contents] ■ Measurement of glass transition temperature by DSC ■ Birefringence measurement by WPA ■ Effects of combining PET and EVA *For more details, please refer to the PDF document or feel free to contact us.

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