Mesophase Pitch-Based Carbon Fibers: Accelerated Stabilization of Pitch Fibers under Effective Plasma Irradiation-Assisted Modification

Stabilization is the most complicated and time-consuming step in the manufacture of carbon fibers (CFs), which is important to prepare CFs with high performance. Accelerated stabilization was successfully demonstrated under effective plasma irradiation-assisted modification (PIM) of mesophase pitch...

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Veröffentlicht in:Materials 2021-10, Vol.14 (21), p.6382
Hauptverfasser: Peng, Yuanshuo, Tan, Ruixuan, Liu, Yue, Yang, Jianxiao, Li, Yanfeng, Li, Jun, Fan, Zheqiong, Shi, Kui
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container_issue 21
container_start_page 6382
container_title Materials
container_volume 14
creator Peng, Yuanshuo
Tan, Ruixuan
Liu, Yue
Yang, Jianxiao
Li, Yanfeng
Li, Jun
Fan, Zheqiong
Shi, Kui
description Stabilization is the most complicated and time-consuming step in the manufacture of carbon fibers (CFs), which is important to prepare CFs with high performance. Accelerated stabilization was successfully demonstrated under effective plasma irradiation-assisted modification (PIM) of mesophase pitch fibers (PFs). The results showed that the PIM treatment could obviously introduce more oxygen-containing groups into PFs, which was remarkably efficient in shortening the stabilization time of PFs with a faster stabilization heating rate, as well as in preparing the corresponding CFs with higher performance. The obtained graphitized fiber (GF-5) from the PF-5 under PIM treatment of 5 min presented a higher tensile strength of 2.21 GPa, a higher tensile modulus of 502 GPa, and a higher thermal conductivity of 920 W/m·K compared to other GFs. Therefore, the accelerated stabilization of PFs by PIM treatment is an efficient strategy for developing low-cost pitch-based CFs with high performance.
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subjects Carbon fibers
Catalytic cracking
Fourier transforms
Graphitization
Heating rate
Irradiation
Mechanical properties
Mesophase
Modulus of elasticity
Nitrogen
Plasma
Stabilization
Tensile strength
Thermal conductivity
title Mesophase Pitch-Based Carbon Fibers: Accelerated Stabilization of Pitch Fibers under Effective Plasma Irradiation-Assisted Modification
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