一种防离子导电凝,用于应变传感器和能量收集装置
Yanjie Wang1, Wei Yu1, Sijun Liu1
1Advanced Rheology Institute, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Polymers
|December 11, 2025
概括
本研究介绍了一种用于可穿戴设备的抗离子导电水凝 (AICH3). 这种新型水凝在-20°C下保持出色的灵活性和导电性,使人类可靠的监测和能量收集成为可能.
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
- 纳米技术 纳米技术
背景情况:
- 水凝对于可穿戴电子产品至关重要,但在零度以下的温度下受结的影响.
- 结会降低水凝的灵活性和导电性,限制它们在寒冷环境中的应用.
研究的目的:
- 开发一种抗离子导电水凝,在零度以下温度下具有增强的性能.
- 为了研究这种水凝在可穿戴人类监测和能量收集设备中的潜力.
主要方法:
- 合成了一种防水凝,通过将Na+纳入凝/疏水性相关的多烯胺双网络.
- 描述了水凝的机械性能,导电性和在-20°C时的应变敏感性.
- 使用开发的水凝制造并测试了一种应变传感器和一个 triboelectric 纳米发电机 (TENG).
主要成果:
- 优化的水凝 (AICH3) 呈现出极好的机械性能 (1.1 MPa 断裂应力,1700% 断裂应力) 和导电性 (2.2 S/m) 在-20 °C.
- 在零度以下的温度下表现出令人印象深刻的应变敏感性 (GF = 7.4).
- 已成功应用于用于生物手指监测的应变传感器,并作为TENG的伸缩电极,在-20°C下为电子设备供电.
结论:
- 开发的防水凝 (AICH3) 克服了在零度以下温度下传统水凝的局限性.
- +离子在增强水凝结构和抑制冰晶形成方面发挥着多功能作用.
- AICH3水凝对先进的可穿戴电子产品和在寒冷条件下收集能量有显著的前景.
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