摘要
柔性压力传感器在运动康复、健康监测等领域取得快速发展。目前大多数柔性压力传感器不具备透气性,运动出汗和皮肤持续的非显性出汗会带来水分在器件与皮肤交界面的积聚,使所覆盖的皮肤温、湿度环境失衡,引发浸渍、皮肤炎症等皮肤不适,还会导致采集信号质量变差、器件脱落等问题。为提升柔性压力传感器佩戴的舒适性和测量的可靠性,提出了一种基于反重力驱湿除汗纤维膜的柔性压力传感器。通过静电纺丝技术制备了具有亲疏水梯度、差分孔径设计的双层透气微纳米纤维膜,实现了高效的驱湿除汗和有效的温、湿度调控。以制备的纤维膜的纤维骨架为传感结构,通过真空抽滤二维过渡金属碳化物/氮化物(MXene)的方式制备了柔性压力传感器,实现了对关节运动、脉搏信号的有效监测。
Flexible pressure sensors are rapidly developing in the fields of sports rehabilitation and health monitoring.Currently,most flexible pressure sensors lack breathability,which can cause moisture to accumulate at the interface of the device and the skin during exercise or continuous insensible sweating,resulting in an imbalanced temperature and humidity environment on the covered skin.This can lead to skin discomfort such as meceration and inflammation,as well as signal quality deterioration and device detachment.To improve the wearing comfort and measurement reliability of flexible pressure sensors,a flexible pressure sensor based on an anti-gravity moisture-wicking fiber membrane is proposed.A breathable double-layer micro-nanofiber membrane with hydrophilic-hydrophobic gradient and differential aperture design is prepared by electrostatic spinning technology to achieve efficient moisture removal,as well as effective temperature and humidity regulation.A flexible pressure sensor is prepared by vacuum filtration of two-dimensional transition metal carbide/nitride(MXene)onto the fiber skeleton of the prepared fiber membrane,which realizes effective monitoring of joint movements and pulse signals.
作者
李竞捷
文莉
LI Jingjie;WEN Li(School of Engineering Science,University of Science and Technology of China,Hefei 230026,China)
出处
《传感器与微系统》
北大核心
2025年第12期78-81,86,共5页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(51375469)。
关键词
压力传感器
静电纺丝
微纳米纤维膜
pressure sensor
electrostatic spinning
micro-nanofiber membrane
