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http://dx.doi.org/10.9726/kspse.2018.22.1.064

Properties of Stretchable Electrode Pattern Printed on Urethane Film  

Nam, Su-Yong (Department of Graphic Arts Information Engineering, Pukyong National University)
Kwon, Bo-Seok (Department of Graphic Arts Information Engineering, Pukyong National University)
Nam, Hyun-Jin (Graduate School of NID Fusion Technology, Seoul National University of Science and Technology)
Nam, Ki-Woo (Department of Materials Science and Engineering, Pukyong National University)
Park, Hyo-Zun (Energy & Enviorment division)
Publication Information
Journal of Power System Engineering / v.22, no.1, 2018 , pp. 64-71 More about this Journal
Abstract
Currently, functional patterns are formed by screen printing on stretchable films, and they are applied to wearable and stretchable devices. In this study, three types of silver paste were prepared using three polyester binders with different Tg and molecular weights in order to impart elasticity to the conductive pattern itself. Rheological properties and DSC measurements were performed for each silver paste. Then, each silver paste was screen printing and cured by an IR dryer to evaluate adhesive strength, pencil hardness, resistance and surface shape change according to strain. As a result, it was found that the silver paste using a binder with a low Tg and a high molecular weight has the smallest resistance change depending on the strain. Namely, it was found that it is most preferable to use a binder with a low Tg and a high molecular weight as the stretchable electrode.
Keywords
Urethane film; Silver paste; screen printing; stretchable electrode;
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