Affiliation:
1. Heilongjiang Key Laboratory of Photoelectric Functional Materials College of Chemistry and Chemical Engineering Mu Dan Jiang Normal University Mudanjiang 157011 China
2. Hainan Provincial Key Laboratory of Natural Rubber Processing Agricultural Products Processing Research Institute Chinese Academy of Tropical Agricultural Sciences Zhanjiang 524001 China
3. Pingyi Country Inspection and Testing Center Pingyi 273300 China
4. School of Life and Environmental Sciences Deakin University Victoria 3216 Australia
Abstract
Wearable strain–humidity sensors are increasingly recognized for their role in healthcare and detecting human motion signals. However, many strain–humidity sensors require complex manufacturing processes and have limited applicability. In this study, based on the good miscibility between natural rubber latex (NRL) and poly (3,4‐ethylenedioxythiophene):poly (4‐styrenesulfonate) (PEDOT:PSS), PEDOT:PSS/NRL composite conductors are transferred onto fabric substrate through screen printing and prepared high‐performance strain–humidity sensor. The PEDOT:PSS/NRL blends strain–humidity sensor exhibited good stability and durability (500 cycles) at 10% strain, achieves a gauge factor (GF) of 123.8 with excellent linearity, making it operational in detecting various human motions, such as finger bending, elbow bending, wrist bending, and so on. In addition, the PEDOT:PSS and water molecules interaction results in a humidity response time as low as 0.72 s and recovery time as low as 0.85 s for the PEDOT:PSS/NRL composite strain–humidity sensor, and a wide relative humidity detection range (6–83%), allowing it to be utilized for precise detection of human breathing. Furthermore, it can monitor the use's joint movement, facial muscle movement, and respiratory rate, which show its potential application prospect in health monitoring.
Funder
National Natural Science Foundation of China
Subject
Condensed Matter Physics,General Materials Science
Cited by
1 articles.
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