Mesophase Pitch-Based Carbon Fibers: Accelerated Stabilization of Pitch Fibers under Effective Plasma Irradiation-Assisted Modification
| Autor: | Yanfeng Li, Jianxiao Yang, Ruixuan Tan, Yue Liu, Jun Li, Zheqiong Fan, Kui Shi, Yuan-shuo Peng |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science Plasma irradiation Young's modulus Article carbon fiber symbols.namesake Thermal conductivity Ultimate tensile strength General Materials Science Fiber Composite material Microscopy QC120-168.85 QH201-278.5 Mesophase Plasma Engineering (General). Civil engineering (General) stabilization plasma irradiation TK1-9971 Descriptive and experimental mechanics symbols Electrical engineering. Electronics. Nuclear engineering mesophase pitch TA1-2040 |
| Zdroj: | Materials, Vol 14, Iss 6382, p 6382 (2021) Materials Volume 14 Issue 21 |
| ISSN: | 1996-1944 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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