具有增强伸展性和稳定性的双网导电体,用于灵活的传感
Dongshu Chen1,2, Bai Wang2,3, Yue Liu1,2
1Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, P. R. China.
ACS applied materials & interfaces
|August 27, 2025
概括
研究人员使用聚烯胺,多糖和深度溶解剂开发了一种新型复合凝,用于先进的柔性应变传感器. 这种材料提供了可穿戴电子设备和人类运动监测的高伸展性和耐用性.
科学领域:
- 材料科学
- 聚合物化学
- 纳米技术
背景情况:
- 灵活的应变传感器对于可穿戴电子设备和人机接口至关重要.
- 现有的传感器在伸展性,耐用性和环境稳定性方面往往存在局限性.
- 开发先进的材料对于克服这些挑战至关重要.
研究的目的:
- 合成和描述一种用于高性能柔性应变传感器的新型双网复合凝.
- 调查深溶解剂 (DES) 对凝性质和稳定性的影响.
- 评估开发的凝在现实应用中的潜力.
主要方法:
- 使用聚烯胺 (PAM),多糖化物 (酸/桑坦) 和深溶解剂 (DES) 合成了一种双网络复合凝.
- 加-合金 (EGaIn) 用作导电填充剂.
- 使用一种溶剂替代策略,用DES取代水.
- 系统地评估了凝的机械,电气和稳定性.
主要成果:
- 复合凝在破裂时达到790%的延伸,拉伸强度为25MPa.
- 在150%的压力下,GF为3.62显示出极好的压力灵敏度.
- 这种凝具有显著的环境稳定性,抗性和最小的胀.
- 在500个循环中,传感器显示出快速的响应/恢复时间和出色的循环稳定性.
结论:
- 开发的eutectogel复合材料在灵活的应变传感应用中表现出卓越的性能.
- 它的高伸展性,机械性和环境稳定性使其成为可穿戴传感器的理想选择.
- 凝在人类运动监测和人机交互方面的成功应用证实了其对下一代技术的潜力.
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