基于丝纤维多壁碳纳米管的微/纳米纤维复合材料作为导电纤维和力传感器。
Silk Fiber Multiwalled Carbon Nanotube-Based Micro-/Nanofiber Composite as a Conductive Fiber and a Force Sensor.
作者信息
Muralidhar Sindhu Sree, Gangaraju Vinay, Shastri Mahesh, Marilingaiah Navya Rani, Dey Arjun, Singh Sushil Kumar, Rangappa Dinesh
机构信息
Department of Applied Sciences, Visvesvaraya Technological University, Center for Postgraduate Studies, Muddenahalli, Chikkaballapur District, Bengaluru 562 101, India.
Department of Electronics and communications, Nagarjuna College of Engineering and Technology, Devanahalli 562110, India.
出版信息
ACS Omega. 2022 Jun 7;7(24):20809-20818. doi: 10.1021/acsomega.2c01392. eCollection 2022 Jun 21.
Silk cocoon fibers (SFs) are natural polymers that are made up of fibroin protein. These natural fibers have higher mechanical stability and good elasticity properties. In this work, we coated multiwalled carbon nanotubes (MWCNTs) on the surface of SFs using a simple stirring technique with vinegar as the medium. This SF-MWCNT micro-/nanofiber composite was prepared without any adhesives. The characterization results revealed that the SF-MWCNT micro-/nanofiber composite exhibited excellent electrical conductivity (995 Ω cm), tensile strength (up to 200% greater elongation), and durability characteristics. In addition, this micro-/nanofiber composite shows a change in resistance from 1450 to 960 Ω cm for an applied mechanical force of 0.3-1 N kg. Based on our findings, SF-MWCNT micro-/nanofiber composite-based conductive fibers (CFs) and force sensors (FSs) were developed.
丝茧纤维（SFs）是由丝素蛋白构成的天然聚合物。这些天然纤维具有更高的机械稳定性和良好的弹性性能。在本研究中，我们以醋为介质，采用简单搅拌技术在SFs表面包覆了多壁碳纳米管（MWCNTs）。这种SF-MWCNT微/纳米纤维复合材料的制备未使用任何粘合剂。表征结果表明，SF-MWCNT微/纳米纤维复合材料表现出优异的导电性（995Ω·cm）、拉伸强度（伸长率提高达200%）和耐久性特征。此外，对于0.3 - 1 N/kg的外加机械力，这种微/纳米纤维复合材料的电阻从1450Ω·cm变化到960Ω·cm。基于我们的研究结果，开发了基于SF-MWCNT微/纳米纤维复合材料的导电纤维（CFs）和力传感器（FSs）。
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