Influence of Oxygen Uptake on Pitch Carbon Fiber.
carbonization
differential scanning calorimetry (DSC)
mesophase pitch
oxidation
oxygen uptake
thermogravimetric analysis (TGA)
Journal
Small (Weinheim an der Bergstrasse, Germany)
ISSN: 1613-6829
Titre abrégé: Small
Pays: Germany
ID NLM: 101235338
Informations de publication
Date de publication:
Nov 2023
Nov 2023
Historique:
revised:
26
06
2023
received:
26
04
2023
medline:
8
7
2023
pubmed:
8
7
2023
entrez:
7
7
2023
Statut:
ppublish
Résumé
Carbon fiber precursor materials, such as polyacrylonitrile, pitch, and cellulose/rayon, require thermal stabilization to maintain structural integrity during conversion into carbon fiber. Thermal stabilization mitigates undesirable decomposition and liquification of the fibers during the carbonization process. Generally, the thermal stabilization of mesophase pitch consists of the attachment of oxygen-containing functional groups onto the polymeric structure. In this study, the oxidation of mesophase pitch precursor fibers at various weight percentage increases (1, 3.5, 5, 7.5 wt%) and temperatures (260, 280, 290 °C) using in situ differential scanning calorimetry and thermogravimetric analysis is investigated. The results are analyzed to determine the effect of temperature and weight percentage increase on the stabilization process of the fibers, and the fibers are subsequently carbonized and tested for tensile mechanical performance. The findings provide insight into the relationship between stabilization conditions, fiber microstructure, and mechanical properties of the resulting carbon fibers.
Identifiants
pubmed: 37420324
doi: 10.1002/smll.202303527
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2303527Subventions
Organisme : U.S. Department of Energy
Organisme : Hydrogen and Fuel Cell Technologies Office
ID : DE-EE0009239
Informations de copyright
© 2023 Wiley-VCH GmbH.
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