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Microplastics formation data on polylactic acid and polypropylene items after UV radiation and seawater immersion Citable as data publication Niu, Z.; Curto, M.; Le Gall, M.; Demeyer, E.; Asselman, J.; Janssen, C.R.; Dhakal, H.N.; Davies, P.; Catarino, A.I.; Everaert, G.; Flanders Marine Institute; University of Portsmouth; Institut Français de Recherche pour l'Exploitation de la Mer; Centexbel; Blue Growth Research Lab; (2023): Microplastics formation data on polylactic acid and polypropylene items after UV radiation and seawater immersion. Marine Data Archive. https://doi.org/10.14284/640 Contact: Niu, Zhiyue Availability:  This dataset is licensed under a Creative Commons Attribution 4.0 International License.Description The microplastics formation dataset was created by Niu et al. based on the UV weathering experiments (during 2021 and 2022) at the Flanders Marine Institute (VLIZ), Belgium. more The goal of the dataset was to assess the fragmentation and release of microplastics from polylactic acid items, a bio-based polymer, and to compare the results with polypropylene items, a petroleum-based polymer. To do so, pristine items of polylactic acid and polypropylene, immersed in filtered natural seawater, to accelerated ultraviolet radiation for 57 and 76 days, simulating 18 and 24 months of mean natural solar irradiance in Europe. The concentration of released microplastics were measured by Niu Z. using a combination of fluorescent microscopy, Fourier Transform Infrared Spectroscopy (FTIR) and image analysis. The particle's size of released microplastics were measured by Niu Z. using a ImageJ macro script. The FTIR spectra data of released microplastics were measured using a micro-FTIR.The oxygen induction time of tested plastic items were measured at IFREMER, France, by Le Gall M. according to ISO 11357-6. Scope Themes: Environmental quality/pollution Keywords: Marine/Coastal, Bio-based plastics, Fragmentation, Microplastics formation, Polylactic acid, Polypropylene, Ultraviolet radiation Parameters Absorbance of released microplastics Methodology Carbonyl Index of released microplastics Methodology Concentration of released microplastics Methodology Maximum Feret's diameter Methodology Minimum Feret's diameter Methodology Oxygen induction time Methodology Power law exponent (α) of particle’s length of released microplastics Methodology Width-to-length ratio of released microplastics Methodology Absorbance of released microplastics: measured by Fourier transform infrared (FTIR) spectrometer with a μ-FTIR microscope Carbonyl Index of released microplastics: calculated from the FTIR spectrum of released microplastics Concentration of released microplastics: Fluorescent microscopy, Fourier Transform Infrared Spectroscopy and image analysis Maximum Feret's diameter: Image analysis Minimum Feret's diameter: Image analysis Oxygen induction time: Differential scanning calorimetry Power law exponent (α) of particle’s length of released microplastics: calculated from the maximum feret’s diameter of released microplastics Width-to-length ratio of released microplastics: calculated from the maximum and minimum feret’s diameter of released microplastics Contributors Vlaams Instituut voor de Zee (VLIZ), more, data creator, data creator University of Portsmouth; School of Mechanical and Design Engineering;
Advanced Polymers and Composites Research Group (APC), more, data creator, data creator Institut Français de Recherche pour l'Exploitation de la Mer; Centre Bretagne; Research and Technological Development Unit; Laboratoire Structures Matériaux Avancés et Sollicitations Hyperbares (SMASH), more, data creator, data creator Ghent University; Blue Growth Research Lab, more, data creator, data creator Project Publication Based on this dataset Niu, Z. et al. (2024). Accelerated fragmentation of two thermoplastics (polylactic acid and polypropylene) into microplastics after UV radiation and seawater immersion. Ecotoxicol. Environ. Saf. 271: 115981. https://dx.doi.org/10.1016/j.ecoenv.2024.115981, more Dataset status: Completed Data type: Data Data origin: Research: lab experiment Metadatarecord created: 2023-12-15 Information last updated: 2024-01-19 | ||||
