高介电电容度的硫基改性聚氧作为软执行器的介电剂
Cansu Zeytun Karaman1,2, Thulasinath Raman Venkatesan1, Johannes von Szczepanski1,3
1Functional Polymers, Empa, Swiss Federal Laboratories for Materials Science and Technology (EMPA) 8600 Duebendorf Switzerland Dorina.opris@empa.ch thulasinath.ramanvenkatesan@empa.ch.
概括
研究人员开发了用于软机器人的新型聚氧介电弹性体. 这些材料可以降低驱动电压,提高介电弹性体执行器 (DEA) 的可靠性,这对于先进的软机器人应用至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 机器人技术 机器人技术 机器人技术
背景情况:
- 介电弹性体执行器 (DEA) 是软机器人软传感器的有希望的产品.
- 对DEA的主要挑战包括降低驱动电压和提高可靠性.
- 需要薄薄的介电弹性体薄膜,具有高的介电电容率和低的模量.
研究的目的:
- 为DEAs合成高介电性聚氧.
- 通过功能化聚甲基维尼利氧.微调介电性质.
- 研究新型聚烯弹性体的介电和机械性能.
主要方法:
- 合成的聚氧,其3 - 墨硫和墨丁基的比例不同.
- 使用医生刀片工艺制造的薄膜.
- 通过紫外线诱导的乙烯添加反应,通过交叉连接的薄膜.
- 使用差分扫描热度计和介电阻抗光谱学进行材料的特征.
主要成果:
- 由于永久双极极化,在1Hz时达到15的最大介电电容量.
- 观察到一种归因于吸附水的影响介电反应的二次放松过渡.
- 确定了一种具有平衡介电和机械性能的聚合物,用于执行器应用.
- 在14 V μm−1时,证明横向动作应变率为7.2%,在13.8 V μm−1.1时,厚度应变率为2.5%.
结论:
- 新型极性聚氧为软机器人提供可调节的介电性质.
- 吸附的水会影响这些极性聚氧中介电反应.
- 优化的DEA在较低的电场上有效运行,这对于低压应用至关重要.
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