强大,坚固和耐环境的有机水凝用于缺陷不敏感的应变传感器
Yuqing Wang1, Zhanqi Liu1, Yuntao Liu1
1School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China. jfgao@yzu.edu.cn.
Materials horizons
|September 2, 2024
概括
我们开发了强大的,坚固的,透明的离子导体有机水凝 (ICOHs),用于高性能应变传感. 这些材料具有出色的机械性能和耐疲劳性,为耐用可穿戴电子产品提供稳定的信号.
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
- 传感器技术 传感器技术
背景情况:
- 导电性有机水凝显示出应变传感的潜力,但其机械性能差,信号不稳定.
- 像低抗裂和疲劳等弱点限制了它们在高性能应用中的使用.
研究的目的:
- 开发强,坚固,透明和抗疲劳的离子导电器官水凝 (ICOH).
- 为了提高基于有机基的应变传感器的机械性能和长期稳定性.
主要方法:
- 使用了一种易于交换溶剂的辅助热压方法.
- 制备密集聚合物网络,并在ICOH中提高结晶度.
主要成果:
- ICOH显示出出色的机械性能:抗拉强度 (36.12 MPa),性 (54.57 MJ m−3),断裂能量 (43.44 kJ m−2),以及疲劳值 (1212.86 J m−2).
- 取得了266%的令人满意的骨折应变.
- ICOH应变传感器表现出极好的循环稳定性 (1万个循环) 和抗/干燥的性能.
- 耐疲劳性使得缺陷不敏感的传感器能够提供稳定的信号,并且在有的传感器中没有显示裂传播.
结论:
- 溶剂交换辅助热压方法有效地产生了强大而耐用的ICOH.
- 与传统的有机水凝相比,这些ICOH提供了优越的机械强度,性和抗疲劳性能.
- 缺陷不敏感的应变传感能力使ICOH对先进的可穿戴和耐用电子应用非常有希望.
相关概念视频
01:22Waterproofing and Anti-Bacterial Admixtures in Concrete
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
01:17Microbial Biosensors
Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...