[15p-B508-1~18] 12.2 Characterization and Materials Physics

△ [15p-B508-5] Molecular Orientation Dependence on Bending Fatigue Behavior of Poly(ethylene terephthalate) Films

〇Yusho Kishimoto¹, Masayuki Kishino¹, Kyohei Hisano¹, Atsushi Shishido¹ (1.Lab. for Chem. & Life Sci., Tokyo Tech)

Keywords:Polymer films, Bending fatigue, Molecular orientation

Polymer films are widely used as substrates for flexible devices. For the development of mechanically durable and flexible devices, it is highly desired to analyze the fatigue behavior of polymer films under cyclic bending. However, there are few studies on the bending fatigue behavior of polymer films. In this study, we analyzed the bending fatigue behavior of oriented poly(ethylene terephthalate) films in terms of a radius of curvature and heat generation.