灵活的电PVDF/PAN/石墨烯纳米纤维压电传感器用于被动的人类运动监测
Hasan Cirik1, Yasemin Gündoğdu Kabakci1,2,3, M A Basyooni-M Kabatas4,5,6
1Department of Physics, Faculty of Science, Selçuk University, Konya 42075, Turkey.
由聚乙烯化物 (PVDF) /聚烯 (PAN) /石墨烯纳米纤维制成的柔性压电传感器有效检测微妙的人体运动. 这些可穿戴传感器显示出被动生理监测应用的前景.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 灵活的压电传感器对于可穿戴电子产品和人类运动检测至关重要.
- 聚乙烯化物 (PVDF) 是一个关键材料,但其压电特性需要优化.
- 纳入像石墨烯这样的纳米填充剂可以提高PVDF的性能.
研究的目的:
- 使用PVDF/PAN/石墨烯纳米纤维制造和评估灵活的压电传感器.
- 优化电和后处理,以提高压电性能.
- 评估传感器对生理运动和压力刺激的反应.
主要方法:
- 通过电制造PVDF/PAN/石墨烯纳米纤维.
- 使用FTIR光谱学进行表征,以确认β相PVDF.
- 加入石墨烯和酸作为功能添加剂.
- 在模拟指曲和脉动压力下测试传感器性能.
主要成果:
- 优化的电产生了统一的纳米纤维 (200-250nm) 和薄膜 (20-25μm).
- 沉积后的热处理增强了PVDF中的压电活性β相.
- 传感器在不同压力 (40-120 mmHg) 下产生稳定的毫伏输出 (25-90 mV).
- 观察到良好的重复性和信号与噪声比.
结论:
- PVDF/PAN/石墨烯纳米纤维薄膜适用于灵活的可穿戴压电传感器.
- 传感器可以检测微妙的生理信号,包括手指曲和脉动压力.
- 电旋参数,添加剂和后处理对于优化机电性能至关重要.
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