轻量级,超压缩和环保的木材/TPU气凝传感器基于动态3D孔结构的优化性能
Yin He1, Zhichao Qiao1, Lujie Fan1
1School of Textile Science and Engineering, Tiangong University, Tianjin, Tianjin 300387, China; Institute of Smart Wearable Electronic Textiles, Tiangong University, Tianjin, Tianjin 300387, China; Key Laboratory of Advanced Textile Composites, Ministry of Education, Tiangong University, 399 Binshui West Street, Xiqing District, Tianjin 300387, China.
Journal of colloid and interface science
|September 7, 2024
概括
这项研究开发了一种新的生物基碳化木气凝 (CWA/TPU) 压力传感器,具有增强的灵敏度和低歇斯底里. 传感器在检测各种压力应变方面表现出卓越的性能,显示出对生理监测的巨大潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 传感器技术 传感器技术
背景情况:
- 基于生物的传感材料为压力检测提供了希望,但需要提高灵敏度,检测极限和歇斯底里.
- 现有的碳化气凝往往因脆性而受损,限制了它们的实际应用.
研究的目的:
- 研究3D孔隙结构与生物基材料在动态压力下的传感性能之间的关系.
- 开发一种高灵敏度,广度检测和低歇斯底里压力传感器,使用改性生物基气凝.
主要方法:
- 使用Balsa木材作为基板来制备CWA/TPU气凝.
- 在压缩过程中使用微型X射线计算机断层扫描 (Micro-XCT) 来重建3D孔隙结构.
- 制造并测试了基于CWA/TPU气凝的压力传感器.
主要成果:
- 生物基碳化材料的灵敏度与孔隙度直接成比例,与面积比例成反比例.
- 该CWA/TPU气凝传感器表现出高灵敏度 (76.18 kPa−1),广泛的检测范围 (0.6 Pa100 kPa),90%的超压缩应变和低歇斯底里 (±7.4%).
- 传感器在1万个循环中表现出卓越的稳定性,可以检测到各种压力应变.
结论:
- 开发的CWA/TPU气凝通过结合TPU有效地解决了碳化气凝的脆性问题.
- 该研究确立了3D孔隙结构和生物基材料的传感性能之间的明显相关性.
- CWA/TPU气凝压力传感器显示出在生理信号监测,动作识别和体育训练方面的应用潜力很大.
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