Effect of humidity, temperature, and elastomer material on the lifetime of silicone-based dielectric elastomer actuators under a constant DC electric field (Conference Presentation)
Effect of humidity, temperature, and elastomer material on the lifetime of silicone-based dielectric elastomer actuators under a constant DC electric field (Conference Presentation)
复制标题
恒定直流电场下湿度、温度和弹性体材料对硅基介电弹性体执行器寿命的影响（会议演示）
DOI：
10.1117/12.2558428
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
H. Shea
中科院分区：
文献类型：
--
作者：
Fabio Beco Albuquerque;H. Shea
这项工作介绍了有机硅介电弹性体致动器 (DEA) 的寿命如何受到有机硅弹性体材料的选择、恒定直流电场下的湿度和温度以及膜预拉伸的影响。研究发现，高湿度 (>50%RH) 会显着缩短直流驱动下硅基 DEA 的使用寿命，而温度和硅酮弹性体类型的影响则更为有限。在 83V/μm 的恒定直流电场和 1.3 的膜预拉伸下，所有在 80°C – 90%RH 条件下工作的 DEA 在 24 小时内失效，而在 20°C – 10%RH 条件下工作的 DEA 全部存活超过 14 天，没有任何失效。
This work presents how the lifetime of silicone-based dielectric elastomer actuators (DEAs) is affected by the choice of silicone elastomer material, humidity and temperature at constant DC electric fields and membrane prestretch. High (>50%RH) humidity levels are found to significantly decrease the lifetime of silicone-based DEAs under DC actuation, whereas temperature and the type of silicone elastomer have a more limited impact. Under a constant DC electric field of 83V/μm and a membrane prestretch of 1.3, all DEAs operating at 80°C – 90%RH fail within 24 hours whereas DEAs actuated at 20°C – 10%RH all survive over 14 days without any failure.