Suppression of electrochemical creep by cross-link in polypyrrole soft actuators
Suppression of electrochemical creep by cross-link in polypyrrole soft actuators
复制标题
通过聚吡咯软执行器中的交联抑制电化学蠕变
DOI：
10.1016/j.phpro.2011.05.028
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Kazuo Tominaga
中科院分区：
文献类型：
--
作者：
藤本教寛;小林達夫;三浦貴司;西脇健二;坂本眞人;T. Morisaku and H. Yui;三浦貴司;Kazuo Tominaga
在软致动器中，拉伸载荷下的蠕变是定位的严重问题。与拉伸载荷下的静态蠕变相比，导电聚合物在电化学循环期间的蠕变（电化学蠕变）是显著的。研究了掺杂十二烷基苯磺酸（DBS）阴离子的聚吡咯薄膜在NaCl水溶液中的电化学蠕变与致动应变的关系。研究发现，聚吡咯与二吡咯烷的化学交联抑制了蠕变，但致动器的应变也降低了。交联聚吡咯中的蠕变在几个循环后饱和，保持致动应变恒定。结果表明，在使用前空转可以使蠕变最小化。扫描速率依赖的电化学蠕变和驱动也被检查，以找到抑制蠕变的方法。
In soft actuators, the creep under tensile loads is a serious problem for the positioning. The creep during electrochemical cycle (electrochemical creep) in conducting polymers is remarkable compared with the static creep under tensile loads. Correlation between the electrochemical creep and the actuating strain in polypyrrole films doped with docecylbenzene sulfonic (DBS) anion has been studied in NaCl aqueous electrolyte. It has been found that chemical cross-link in polypyrrole with di-pyrrole alkanes suppressed the creep, however, the actuator strain also decreased. The creep in crossliked PPy saturated after several cycles, keeping the strain of actuation constant. The result indicates the creep can be minimized by idling before use. Scan rate dependences of the electrochemical creep and actuation were also examined to find the ways to depress the creep.