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C 2017, 3(3), 26; doi:10.3390/c3030026

Meltblown Solvated Mesophase Pitch-Based Carbon Fibers: Fiber Evolution and Characteristics

University of Tennessee Space Institute, 411 B.H. Goethert Parkway, Tullahoma, TN 37388, USA
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Received: 12 July 2017 / Revised: 26 July 2017 / Accepted: 7 August 2017 / Published: 8 August 2017
(This article belongs to the Special Issue Carbon Fiber)
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Abstract

Potentially low-cost continuous carbon fibers are produced from solvated mesophase pitch through a patented meltblowing process. The structural evolution and properties of the fibers are characterized by various analytical methods. The meltblown fibers are continuous fibers which are collected into a fibrous web form, and the diameter of the filaments is attenuated by the flow rate of air streams. The spun fibers can be rapidly stabilized in air due to the high melting mesogens and the removable solvent. The carbonized fibers show a high carbon yield of 75 wt % (or 86 wt % if the solvents are neglected) and a mean diameter of 8–22 μm with typical fiber diameter distribution and variation. The evolution of the fiber structure depends not only on the processing temperature but also on the fiber diameter. The processed carbon fibers retain the same form as the spun fibers and have a low packing density and reasonable mechanical properties. View Full-Text
Keywords: carbon fibers; mesophase pitch; thermal analysis; fiber conversion processes; microstructure carbon fibers; mesophase pitch; thermal analysis; fiber conversion processes; microstructure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yue, Z.; Liu, C.; Vakili, A. Meltblown Solvated Mesophase Pitch-Based Carbon Fibers: Fiber Evolution and Characteristics. C 2017, 3, 26.

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