Pyrolysis of brominated polyethylene as an alternative carbon fibre precursor
Article
Laycock, Bronwyn, Wang, Xiaoyu, Liu, Ru-Fen, Annamalai, Pratheep Kumar, Cork, Jorja, Derstine, Chris, Mills, Michael and McFarland, Eric W.. 2020. "Pyrolysis of brominated polyethylene as an alternative carbon fibre precursor." Polymer Degradation and Stability. 172. https://doi.org/10.1016/j.polymdegradstab.2019.109057
Article Title | Pyrolysis of brominated polyethylene as an alternative carbon fibre precursor |
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ERA Journal ID | 1691 |
Article Category | Article |
Authors | Laycock, Bronwyn, Wang, Xiaoyu, Liu, Ru-Fen, Annamalai, Pratheep Kumar, Cork, Jorja, Derstine, Chris, Mills, Michael and McFarland, Eric W. |
Journal Title | Polymer Degradation and Stability |
Journal Citation | 172 |
Article Number | 109057 |
Number of Pages | 11 |
Year | 2020 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0141-3910 |
0144-2880 | |
1873-2321 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.polymdegradstab.2019.109057 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0141391019303854 |
Abstract | Polyethylene as a polymeric precursor for carbon fibre production has attracted much attention over recent years. Not only is it a low-cost commodity polymer, it has a higher theoretical carbon yield (at 100%) than polyacrylonitrile (at 67%) and is very readily melt processed into fibres. The challenge is to efficiently dehydrogenate and graphitize polyethylene fibres. This paper explores the use of bromine as a novel oxidant to functionalise polyethylene prior to carbonisation, leading to efficient cyclisation and carbonisation on heating. Through a process of low-temperature photo-induced liquid-phase bromination followed by dehydrobromination at moderate temperature and subsequent carbonisation to 800 °C, a carbonaceous product was obtained in high carbon yield (>90%). The effects of a range of process conditions, as well as the use of different types of polyethylene and polyethylene blends, were explored. |
Keywords | carbon fibre; Polyethylene; Pyrolysis |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
340302. Macromolecular materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Fonterra Research and Development Centre, New Zealand | |
Clean Diesel Technologies, United States | |
Dow Chemical Company, Germany | |
University of California Santa Barbara, United States |
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