We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Impact of the Manufacturing Processes of Aromatic-Polymer-Based Carbon Fiber on Life Cycle Greenhouse Gas Emissions.
- Authors
Sakamoto, Kaito; Kawajiri, Kotaro; Hatori, Hiroaki; Tahara, Kiyotaka
- Abstract
Carbon fibers (CFs) are promising lightweight materials to reduce vehicle fuel consumption. However, the most widely used polyacrylonitrile (PAN)-based CF production process consumes a considerable amount of energy. A novel production process for CFs from aromatic polymers (APs) is proposed as an alternative. In this study, the greenhouse gas (GHG) emissions from PAN-based CFs, from APs using the classical benzidine method, and from APs using the coupling method on a cradle-to-gate basis, were analyzed. The results indicate that the AP CFs with the classical benzidine method generated 11% fewer GHG emissions compared with the conventional PAN CFs. Emissions were further reduced by 42% using a large-tow production process. As the classical benzidine method for manufacturing CFs from APs uses a monomer synthesized via benzidine, which is carcinogenic, we examined a different synthetic route using the coupling method for monomer synthesis to avoid the benzidine intermediate. The GHG emissions from the AP CFs manufactured by the coupling method showed a 51% increase compared with PAN-based CFs, indicating a trade-off between GHG emissions and carcinogenicity. However, with proper chemical management, the classical method of CF manufacturing from APs via benzidine showed reduced GHG emissions.
- Subjects
EMISSIONS (Air pollution); LIGHTWEIGHT materials; BENZIDINE; GREENHOUSE gases; CARBON fibers; ENERGY consumption; CARCINOGENS
- Publication
Sustainability (2071-1050), 2022, Vol 14, Issue 6, p3541
- ISSN
2071-1050
- Publication type
Article
- DOI
10.3390/su14063541