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题名: Wide-Range Tunable Dynamic Property of Carbon-Nanotube-Based Fibers
作者: Zhao, JN(赵静娜); Zhang, XH(张骁华); Pan, ZJ; Li, QW(李清文)
通讯作者: Zhang, XH (郑新河)
刊名: ADVANCED MATERIALS INTERFACES
发表日期: 2015
DOI: 10.1002/admi.201500093
卷: 2, 期:10, 页:6
收录类别: SCI
部门归属: 先进材料研究部
英文摘要: A carbon nanotube (CNT) fiber is formed by assembling millions of individual tubes. The assembly feature provides the fiber with rich interface structures and thus various ways of energy dissipation, as reflected by the nonzero loss tangent (>0.028-0.045) at low vibration frequencies. A fiber containing entangled CNTs possesses higher loss tangents than a fiber spun from aligned CNTs. Liquid densification and polymer infiltration, the two common ways to increase the interfacial friction and thus the fiber's tensile strength and modulus, are found to efficiently reduce the damping coefficient. This is because the sliding tendency between CNT bundles can also be well suppressed by a high packing density and the formation of covalent polymer cross-links within the fiber. The CNT/bismaleimide composite fiber exhibits the smallest loss tangent, nearly the same as that of carbon fibers. At a higher level of the assembly structure, namely a multi-ply CNT yarn, the interfiber friction and sliding tendency obviously influence the yarn's damping performance, and the loss tangent can be tuned within a wide range, similar to carbon fibers, nylon yarns, or cotton yarns. The wide-range tunable dynamic properties allow new applications ranging from high quality factor materials to dissipative systems.
语种: 英语
JCR小类分区: 四区
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内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/3341
Appears in Collections:先进材料研究部_李清文团队_期刊论文

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Recommended Citation:
Zhao, JN,Zhang, XH,Pan, ZJ,et al. Wide-Range Tunable Dynamic Property of Carbon-Nanotube-Based Fibers[J]. ADVANCED MATERIALS INTERFACES,2015,2(10):6.
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