Research progress on high-performance carbon nanotube composite fibers
Carbon nanotube fibers(CNTF),serving as one-dimensional macroscopic assemblies of carbon nanotubes(CNT),possess significant potential in translating the unique physical and chemical attributes of CNT from the nanoscale to the macroscale.Theoretically,the efficient interconnection and bottom-up integration of CNTs can facilitate the direct translation of their remarkable mechanical,electrical,and thermal properties from the microscale onto macroscopic fibers.Nevertheless,practical obstacles,including suboptimal CNT alignment during assembly,low packing density,and structural defects such as voids,hinder the effective translation of nanotube properties to the larger material scale.Recent advancements in CNT composite fibers demonstrate promising potential in addressing structural imperfections and enhancing property translation at the macroscale.This review comprehensively summarizes the latest research progress in carbon nanotube composite fibers,encompassing various preparation techniques and the subsequent fiber properties.These include nanomaterial/CNT composite fibers,polymer/CNT composite fibers,metal/CNT composite fibers,and ceramic/CNT composite fibers.A critical examination of both local and international research statuses pertaining to the enhancements in strength,conductivity,and thermal stability of these composite fibers is also presented.Finally,the review provides prognostications on the future development trajectory of carbon nanotube composite fibers.
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