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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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| URI: | http://purl.tuc.gr/dl/dias/7D9F70CC-86B7-4D1F-B944-01CDD129FDC2 | ||
| Year | 2020 | ||
| Type of Item | Diploma Work | ||
| License |
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| Bibliographic Citation | Elisavet Papadaki, "Modelling of the weathering of plastic films (LDPE, PP, PET) by UV radiation in marine and coastal environments", Diploma Work, School of Environmental Engineering, Technical University of Crete, Chania, Greece, 2020 https://doi.org/10.26233/heallink.tuc.84558 | ||
| Appears in Collections |
Despite the benefits and convenience of using plastics in human daily life, there are many negative effects of using them on the environment. Tons of plastic waste end up in marine and coastal ecosystems, causing ecological, economic and social impacts. Exposure to various environmental conditions such as UV radiation, temperature and oxygen results in the natural aging of plastics.The purpose of this thesis is to study the abiotic degradation of low-density polyethylene (LDPE), polyethylene terephthalate (PET) and polypropylene (PP) plastic films when they are exposed to UV radiation in marine and coastal simulated mesocosms for twelve months. Different methods of processing the results compare the provisions on which is most favorable for the degradation of plastics. Also, by modeling using R, models are proposed to determine the rate of the abiotic degradation. Modeling is used for the indices of the new functional groups that created during the degradation of LDPE and PP plastics. The results proved that the coastal simulated mesocosm was more effective for aging plastic films due to their direct exposure to UV radiation. In contrast, in the aquariums, low temperature of water and the formation of biofilm on the films’ surface prevent the absorption of radiatio
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