材料科学
碳纳米管
复合材料
凯夫拉
织物
纱线
极限抗拉强度
热导率
电磁屏蔽
制作
变形(气象学)
复合数
医学
替代医学
病理
作者
Long Yu,Han Liu,Xinyu Liu,Ming Yang,Jinlin Xie,Hua Qiu,Kunlin Chen,Guoke Wei,Peng Gu
出处
期刊:Physica Scripta
[IOP Publishing]
日期:2023-11-03
卷期号:98 (12): 125011-125011
被引量:1
标识
DOI:10.1088/1402-4896/ad099e
摘要
Abstract With the spectacular physical properties of electrical conductivity, mechanical strength and thermal conductivity, carbon nanotube (CNT) fibers are favored in many fields such as energy storage devices, sensing, electromagnetic shielding and structural reinforcement, especially in flexible sensing devices. However, the lower tensile properties of CNT fibers limit their further application in stretchable strain sensors, especially when monitoring large deformation variables. Here, large-scale continuous production of CNT fibers has achieved through floating catalytic chemical vapor deposition (FCCVD) technology. In the meantime, the CNT fibers were hybrid with Kevlar fibers to obtain hybrid CNT yarns with the strength of 168.4 MPa and the electrical conductivity of 7.78 × 10 4 S m −1 . The strength of the hybrid CNT yarns produced by this method is higher than that of 40 count cotton yarns, which is perfectly suited for the fabrication of textile devices. Through knitting with three-dimensional elastic fabrics, the textile-based sensors exhibit promising sensing ability, washability, weather tolerance and sweat resistance, owing to the excellent physical and chemical properties of the hybrid CNT yarns. Moreover, stretchable strain sensors exhibit fast response and cycle stability, which provides unique opportunities in designing smart textiles with fast response and environmental durability.
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