具有Ag沉积的聚多巴胺功能化的纤维素纳米纤维素用于坚固的聚乙烯醇) 水凝应变传感器
Qianqian Wang1, Shixuan Feng2, Lin Zhong2
1Biofuels Institute, School of the Environment and Safety Engineering, School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, China; State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China; Shaanxi Key Laboratory of Research and Utilization of Resource Plants on the Loess Plateau, Yan'an, 716000, China.
研究人员开发了一个强大的,导电的水凝应变传感器,使用聚乙烯醇 (PVC) 增强银色装饰的纤维素纳米纤维. 这种可穿戴传感器准确地监测人体运动,具有高灵敏度和耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 聚合物科学 聚合物科学
背景情况:
- 由于其与皮肤相适应,水凝是可穿戴电子产品的理想选择.
- 在创造具有同时机械强度,导电性,粘附性和抗菌性质的水凝方面存在挑战.
研究的目的:
- 开发一个多功能聚乙烯醇 (PVA) 水凝应变传感器.
- 为了提高可穿戴应用的机械强度,导电性,附着性和抗菌活性.
主要方法:
- 合成的多多巴胺/银色装饰的纤维素纳米纤维素 (PDA@CNF-Ag).
- 使用冷解过程将PDA@CNF-Ag纳入PVA矩阵中.
- 描述了由此产生的水凝的机械,电气和传感性能.
主要成果:
- 这种PVA-PDA/CNF-Ag-0.5水凝的导电率为17mS·m−1,可拉伸度为536%,拉伸强度为60kPa.
- 在300个循环中显示出高应变灵敏度 (GF=2.1) 和稳定的信号响应.
- 呈现出强大的粘附性和强大的抗菌活性.
结论:
- 生物基导电水凝提供了一种机械强和多功能平台.
- 成功实现了对下一代可穿戴电子产品的人类运动的可靠监控.
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