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首页> 美国卫生研究院文献>Polymers >Wet-Spinning Assembly of Continuous Highly Stable Hyaluronic/Multiwalled Carbon Nanotube Hybrid Microfibers
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Wet-Spinning Assembly of Continuous Highly Stable Hyaluronic/Multiwalled Carbon Nanotube Hybrid Microfibers

机译：连续高度稳定的透明质酸/多壁碳纳米管混合超细纤维的湿纺组件

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摘要

Effective multiwalled carbon nanotube (MWCNT) fiber manufacturing methods have received a substantial amount of attention due to the low cost and excellent properties of MWCNTs. Here, we fabricated hybrid microfibers composed of hyaluronic acid (HA) and multiwalled carbon nanotubes (MWCNTs) by a wet-spinning method. HA acts as a biosurfactant and an ionic crosslinker, which improves the dispersion of MWCNTs and helps MWCNT to assemble into microfibers. The effects of HA concentration, dispersion time, injection speed, and MWCNT concentration on the formation, mechanical behavior, and conductivity of the HA/MWCNT hybrid microfibers were comprehensively investigated through SEM, UV-Vis spectroscopy, tensile testing, and conductivity testing. The obtained HA/MWCNT hybrid microfibers presented excellent tensile properties in regard to Young’s modulus (9.04 ± 1.13 GPa) and tensile strength (130.25 ± 10.78 MPa), and excellent flexibility and stability due to the superior mechanical and electrical properties of MWCNTs. This work presents an effective and easy-to-handle preparation method for high-performance MWCNT hybrid microfibers assembly, and the obtained HA/MWCNT hybrid microfibers have promising applications in the fields of energy storage, sensors, micro devices, intelligent materials, and high-performance fiber-reinforced composites.
机译：有效的多壁碳纳米管（MWCNT）纤维制造方法由于MWCNT的低成本和优异的性能而受到了广泛的关注。在这里，我们通过湿纺法制备了由透明质酸（HA）和多壁碳纳米管（MWCNT）组成的杂化微纤维。 HA用作生物表面活性剂和离子交联剂，可改善MWCNT的分散性并帮助MWCNT组装成微纤维。通过SEM，UV-Vis光谱，拉伸测试和电导率测试，全面研究了HA浓度，分散时间，注射速度和MWCNT浓度对HA / MWCNT杂化微纤维的形成，力学行为和电导率的影响。获得的HA / MWCNT杂化超细纤维在杨氏模量（9.04±1.13 GPa）和拉伸强度（130.25±10.78 MPa）方面表现出出色的拉伸性能，并且由于MWCNT的优异的机械和电性能而具有出色的柔韧性和稳定性。这项工作为高性能的MWCNT杂化超细纤维组装提供了一种有效且易于操作的制备方法，并且所得的HA / MWCNT杂化超细纤维在储能，传感器，微型设备，智能材料和高强度领域具有广阔的应用前景。性能的纤维增强复合材料。

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