Jeong Yun Ho, Im Jaegyun, Choi Gyeong Hwan, Kim Chae Bin, Lee Jaegeun
School of Chemical Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeoung-gu, Busan 46241, Republic of Korea.
Department of Polymer Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea.
Materials (Basel). 2024 Jul 19;17(14):3581. doi: 10.3390/ma17143581.
Surfactant-based wet spinning is a promising route toward the eco-friendly production of carbon nanotube fibers (CNTFs). However, currently, the properties of surfactant-based wet-spun CNTFs lag behind those produced by other methods, indicating the need for further understanding and research. Here, we explored the surface characteristics of carbon nanotubes (CNTs) that are advantageous for the properties of CNTFs produced by wet spinning, using sodium cholate as a surfactant. Our finding indicates that appropriate thermal oxidation of CNTs enhances the fiber properties, while excessive oxidation undermines them. This implies that the bonding mechanism between CNTs and sodium cholate involves hydrophobic interaction and π-π interaction. Therefore, it is crucial to preserve a clean surface of CNTs in wet spinning using sodium cholate. We believe our research will contribute to the advancement of surfactant-based wet spinning of CNTFs.
基于表面活性剂的湿法纺丝是实现碳纳米管纤维（CNTFs）环保生产的一条有前景的途径。然而，目前基于表面活性剂的湿法纺丝CNTFs的性能落后于其他方法生产的CNTFs，这表明需要进一步的理解和研究。在此，我们以胆酸钠为表面活性剂，探索了有利于湿法纺丝生产的CNTFs性能的碳纳米管（CNTs）表面特性。我们的发现表明，对CNTs进行适当的热氧化可增强纤维性能，而过度氧化则会削弱纤维性能。这意味着CNTs与胆酸钠之间的键合机制涉及疏水相互作用和π-π相互作用。因此，在使用胆酸钠进行湿法纺丝时，保持CNTs的清洁表面至关重要。我们相信我们的研究将有助于推进基于表面活性剂的CNTFs湿法纺丝技术的发展。
