Influence of Oxygen Uptake on Pitch Carbon Fiber
- Univ. of Virginia, Charlottesville, VA (United States)
- Solvay Composite Materials, Piedmont, SC (United States)
Abstract 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.
- Research Organization:
- Univ. of Virginia, Charlottesville, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO); USDOE
- Grant/Contract Number:
- EE0009239
- OSTI ID:
- 1992055
- Alternate ID(s):
- OSTI ID: 1995621
- Journal Information:
- Small, Vol. 19, Issue 45; ISSN 1613-6810
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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