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弹性和超稳定的离子导体用于在极端环境中工作的长寿命软机器人
Lin Sun1, Wenwen Feng1, Yuncong Liu1
1Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, China.
Nature communications
|July 2, 2025
概括
研究人员为在极端条件下运行的软机器人开发了新的无水性器官凝. 这些乙烯基醇 (EG) 凝在广泛的温度和湿度范围内提供高离子导电性,弹性和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 机器人技术 机器人技术 机器人技术
- 聚合物化学 聚合物化学
背景情况:
- 软机器人需要离子导体,以便在极端环境中快速移动.
- 现有的离子导体缺乏必要的特性,如高导电性,低模量,弹性和稳定性.
- 无水有机凝是克服这些局限性的潜在解决方案.
研究的目的:
- 开发新的无水离子导电器官凝.
- 为了实现高离子导电性,低扬模量,高弹性和极端的环境稳定性.
- 为了证明这些凝在软机器人和介电弹性体执行器中的应用.
主要方法:
- 采用了结合离子双极相互作用和键的协同效应策略.
- 乙烯糖醇 (EG) 凝以低聚合物度 (5mol%) 合成.
- 描述了EG凝的特性,包括离子导电性,模量,弹性和在极端条件下的稳定性.
主要成果:
- 合成的EG凝具有高离子导电性 (1.31mS cm-1),低模量 (7.3kPa) 和高弹性 (~100%).
- 凝在极端环境 (-27~123°C和10%~70%RH) 中表现稳定.
- 使用这些凝的介电弹性体执行装置显示出稳定的运行和42倍的寿命比传统的离子凝更长.
- 一个使用EG凝的软机器人在极端环境中实现了高速运行 (3.6 BL s-1).
结论:
- 开发的乙烯基醇 (EG) 凝满足了在极端环境中软机器人的严格要求.
- 这些无水有机凝与现有材料相比,提供了更高的性能和稳定性.
- 在执行器和软机器人中的成功应用凸显了它们对先进机器人技术的潜力.
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