Pujari Anuptha, Chauhan Devika, Chitranshi Megha, Hudepohl Ronald, Kubley Ashley, Shanov Vesselin, Schulz Mark
College of Engineering and Applied Sciences, University of Cincinnati, Cincinnati, OH 45221, USA.
College of Design, Art, Architecture, and Planning, University of Cincinnati, Cincinnati, OH 45221, USA.
Nanomaterials (Basel). 2023 Jan 20;13(3):431. doi: 10.3390/nano13030431.
Carbon nanotubes (CNTs) have extraordinary properties and are used for applications in various fields of engineering and research. Due to their unique combination of properties, such as good electrical and thermal conductivity and mechanical strength, there is an increasing demand to produce CNTs with enhanced and customized properties. CNTs are produced using different synthesis methods and have extraordinary properties individually at the nanotube scale. However, it is challenging to achieve these properties when CNTs are used to form macroscopic sheets, tapes, and yarns. To further improve the properties of macroscale forms of CNTs, various types of nanoparticles and microfibers can be integrated into the CNT materials. The nanoparticles and microfibers can be chosen to selectively enhance the properties of CNT materials at the macroscopic level. In this paper, we propose a technique to manufacture carbon hybrid materials (CHMs) by combining CNT non-woven fabric (in the form of sheets or tapes) with microfibers to form CNT-CF hybrid materials with new/improved properties. CHMs are formed by integrating or adding nanoparticles, microparticles, or fibers into the CNT sheet. The additive materials can be incorporated into the synthesis process from the inlet or the outlet of the reactor system. This paper focuses on CHMs produced using the gas phase pyrolysis method with microparticles/fibers integrated at the outlet of the reactor and continuous microfiber tapes integrated into the CNT sheet at the outlet using a tape feeding machine. After synthesis, characterizations such as microscopy and thermogravimetric analysis were used to study the morphology and composition of the CNTs, and examples for potential applications are discussed in this paper.
碳纳米管（CNTs）具有非凡的性能，被应用于工程和研究的各个领域。由于其独特的性能组合，如良好的导电性、导热性和机械强度，人们对生产具有增强和定制性能的碳纳米管的需求日益增加。碳纳米管通过不同的合成方法制备，在纳米管尺度上各自具有非凡的性能。然而，当碳纳米管用于形成宏观的薄片、带材和纱线时，要实现这些性能具有挑战性。为了进一步改善碳纳米管宏观形式的性能，可以将各种类型的纳米颗粒和微纤维集成到碳纳米管材料中。可以选择纳米颗粒和微纤维以在宏观层面上选择性地增强碳纳米管材料的性能。在本文中，我们提出了一种通过将碳纳米管无纺布（以薄片或带材的形式）与微纤维结合来制造碳杂化材料（CHMs）的技术，以形成具有新的/改进性能的碳纳米管-碳纤维杂化材料。碳杂化材料是通过将纳米颗粒、微粒或纤维集成或添加到碳纳米管薄片中形成的。添加剂材料可以从反应器系统的入口或出口引入合成过程。本文重点关注使用气相热解法生产的碳杂化材料，其中微粒/纤维在反应器出口处集成，连续微纤维带材通过带材进料机在出口处集成到碳纳米管薄片中。合成后，使用显微镜和热重分析等表征方法来研究碳纳米管的形态和组成，并在本文中讨论了潜在应用的实例。
