Experimental and theoretical analyses of curvature and surface strain in bent polymer films
Experimental and theoretical analyses of curvature and surface strain in bent polymer films
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DOI：
10.35848/1882-0786/ab8346
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发表时间：
2020-05-01
影响因子：
2.3
通讯作者：
Shishido, Atsushi
中科院分区：
文献类型：
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作者：
Kuwahara, Kohei;Taguchi, Ryo;Shishido, Atsushi
了解弯曲聚合物薄膜的曲率对于柔性电子器件的研究与开发具有重要意义。在此，我们报告了聚合物的应力-应变曲线（S-S曲线）成功地预测了聚合物薄膜的曲率。弯曲聚合物薄膜的曲率取决于薄膜的厚度和化学结构，这一点已被实验证实。我们基于S-S曲线的理论模型（修正弹性理论）很好地证明了这种依赖性。该方法为柔性电子器件的研发提供了有效的指导。
Understanding the curvature of a bent polymer film is important for the research and development (R&D) of flexible electronic devices. Herein, we report that the curvature of a polymer film is successfully predicted by a stress-strain curve (S-S curve) of the polymer. The curvature of a bent polymer film depends on film thickness and chemical structure, which is experimentally confirmed. This dependence is demonstrated well by our theoretical model (the modified Elastica theory) based on a S-S curve. This method provides effective guideline for the R&D of flexible electronic devices.