Investigation of Gas Release from Recycled Plastic Shopping Bags during Melting at Low Temperatures
Article
Article Title | Investigation of Gas Release from Recycled Plastic Shopping Bags during Melting at Low Temperatures |
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ERA Journal ID | 44448 |
Article Category | Article |
Authors | Eberhard, Susette, Bowtell, Les, Lenske, Brian and Islam, Mainul |
Editors | Islam, Mainul |
Journal Title | Advances in Materials Science and Engineering |
Journal Citation | 2023, pp. 1-9 |
Article Number | 2378231 |
Number of Pages | 9 |
Year | 2023 |
Publisher | Hindawi Publishing Corporation |
Place of Publication | United Kingdom |
ISSN | 1687-8434 |
1687-8442 | |
Digital Object Identifier (DOI) | https://doi.org/10.1155/2023/2378231 |
Web Address (URL) | https://www.hindawi.com/journals/amse/2023/2378231/ |
Abstract | Recycling plastic is an excellent way to reduce the environmental impact of its production and use. In a circular economy, recycling of recycled plastic is necessary. Most plastic bags are made of thermoplastic, like high-density polyethylene (HDPE) with a melting point of 130°C, and low-density polyethylene (LDPE). In contrast, recycled plastic bags are made up of many different unknown substances. In this study, the melting of used plastic bags containing 80% unknown recycled material was investigated. FTIR analysis showed that the bags consisted mainly of HDPE. Te bags were melted at 160°C, 200°C, and 250°C for 30 min. GC-FID and HP-SPME GCMS analyses showed that the bags released flammable gases (methane, ethylene, and alkane/alkene hydrocarbons) but little acetylene. Aromatic and aliphatic hydrocarbons eluded from the bags at 10% of the gas volume at 250°C. Long-chain alkanes, mostly hexadecane, were the dominant compound, amounting to 28% at 160°C and increasing to 43% at 250°C. On the other hand, alkenes decreased with a rising temperature (23% at 160°C to 3% at 250°C), as they were transformed |
Keywords | Recycled, plastic, gas, temperature, environmental. |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 400402. Chemical and thermal processes in energy and combustion |
401102. Environmentally sustainable engineering | |
Byline Affiliations | Academic Affairs Administration |
School of Engineering |
https://research.usq.edu.au/item/yy24v/investigation-of-gas-release-from-recycled-plastic-shopping-bags-during-melting-at-low-temperatures
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