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Highly stretchable strain sensors based on polypyrrole-silicone rubber composites for human motion detection
Sensors and Actuators A: Physical ( IF 4.6 ) Pub Date : 2020-06-02 , DOI: 10.1016/j.sna.2020.112131
Agee Susan Kurian , Hamid Souri , Velram Balaji Mohan , Debes Bhattacharyya

Flexible strain sensors attained significant attraction due to their numerous applications, such as personal healthcare, robotics, human entertainment technology and sports performance monitoring. However, there still exist challenges to find out a strain sensing mechanism with a facile and cost-effective method. Polypyrrole (PPy)/SR composites were prepared by a simple, low-cost solution casting method. Carbonaceous fillers, graphene nano platelets (GNP), and carbon black (CB) were introduced along with PPy and the sensor performances including stretchability, flexibility, gauge factor (GF), linearity and durability were studied. PPy/SR composites showed a GF between 1.2 and 1.7 and exhibited reversible and stable electromechanical characteristics with an average response time of 150 milliseconds. The conductive mechanism, which causes piezoresistivity and the temperature-dependent resistance characteristics and mechanical properties, were studied. The excellent composite properties, such as super-stretchability, flexibility, biocompatibility, durability along with facile production and environmental stability, make them an ideal candidate for the fabrication of large strain wearable sensors which can be integrated to clothes or directly attached to the human body for real-time human body deformation measurements.



中文翻译:

基于聚吡咯-硅橡胶复合材料的高度可拉伸应变传感器,用于人体运动检测

柔性应变传感器由于其广泛的应用而获得了巨大的吸引力,例如个人医疗保健,机器人技术,人类娱乐技术和运动表现监测。然而,仍然存在挑战,以一种容易且成本有效的方法来寻找应变感测机制。聚吡咯(PPy)/ SR复合材料是通过简单的低成本溶液浇铸方法制备的。引入了碳质填料,石墨烯纳米片(GNP)和炭黑(CB)以及PPy,并研究了传感器性能,包括拉伸性,柔韧性,规格因子(GF),线性和耐久性。PPy / SR复合材料的GF在1.2和1.7之间,并具有可逆和稳定的机电特性,平均响应时间为150毫秒。导电机制 研究了引起压阻的原因,以及随温度变化的电阻特性和机械性能。优异的复合性能,例如超拉伸性,柔韧性,生物相容性,耐用性以及生产简便性和环境稳定性,使其成为制造可集成到衣服上或直接连接到人体的大应变可穿戴传感器的理想选择用于实时人体变形测量。

更新日期:2020-06-02
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