Laboratory Study of the Ultraviolet Radiation Effect on an HDPE Geomembrane
High-density polyethylene (HDPE) geomembranes are polymeric geosynthetic materials usually applied as a liner in environmental facilities due to their good mechanical properties, good welding conditions, and excellent chemical resistance. A geomembrane’s field performance is affected by different co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/6/390 |
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| author | Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Érica Fernanda da Silva Tirelli Maria de Lurdes Lopes Jefferson Lins da Silva |
| author_facet | Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Érica Fernanda da Silva Tirelli Maria de Lurdes Lopes Jefferson Lins da Silva |
| author_sort | Fernando Luiz Lavoie |
| collection | DOAJ |
| description | High-density polyethylene (HDPE) geomembranes are polymeric geosynthetic materials usually applied as a liner in environmental facilities due to their good mechanical properties, good welding conditions, and excellent chemical resistance. A geomembrane’s field performance is affected by different conditions and exposures, including ultraviolet radiation, thermal and oxidative exposure, and chemical contact. This article presents an experimental study with a 1.0 mm-thick HDPE virgin geomembrane exposed by the Xenon arc weatherometer for 2160 h and the ultraviolet fluorescent weatherometer for 8760 h to understand the geomembrane’s behavior under ultraviolet exposure. The evaluation was performed using the melt flow index (MFI) test, oxidative-induction time (OIT) tests, tensile test, differential scanning calorimetry (DSC) analysis, and Fourier transform infrared spectroscopy (FTIR) analysis. The sample exposed in the Xenon arc equipment showed a tendency to increase the MFI values during the exposure time. This upward trend may indicate morphological changes in the polymer. The tensile behavior analysis showed a tendency of the sample to lose ductility, without showing brittle behavior. The samples’ OIT test results under both device exposures showed faster antioxidant depletion for the standard OIT test than the high-pressure OIT test. The DSC and FTIR analyses did not demonstrate the polymer’s changes. |
| first_indexed | 2024-03-10T11:02:30Z |
| format | Article |
| id | doaj.art-7d6230c3b4d64dbf89a7dcdbe0190a16 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T11:02:30Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-7d6230c3b4d64dbf89a7dcdbe0190a162023-11-21T21:24:48ZengMDPI AGMembranes2077-03752021-05-0111639010.3390/membranes11060390Laboratory Study of the Ultraviolet Radiation Effect on an HDPE GeomembraneFernando Luiz Lavoie0Marcelo Kobelnik1Clever Aparecido Valentin2Érica Fernanda da Silva Tirelli3Maria de Lurdes Lopes4Jefferson Lins da Silva5Department of Civil Engineering, Mauá Institute of Technology, São Caetano do Sul 09580-900, BrazilSão Carlos School of Engineering, University of São Paulo—USP, São Paulo 13566-590, BrazilSão Carlos School of Engineering, University of São Paulo—USP, São Paulo 13566-590, BrazilDepartment of Civil Engineering, Mauá Institute of Technology, São Caetano do Sul 09580-900, BrazilCONSTRUCT-GEO, Department of Civil Engineering, University of Porto, 4200-465 Porto, PortugalSão Carlos School of Engineering, University of São Paulo—USP, São Paulo 13566-590, BrazilHigh-density polyethylene (HDPE) geomembranes are polymeric geosynthetic materials usually applied as a liner in environmental facilities due to their good mechanical properties, good welding conditions, and excellent chemical resistance. A geomembrane’s field performance is affected by different conditions and exposures, including ultraviolet radiation, thermal and oxidative exposure, and chemical contact. This article presents an experimental study with a 1.0 mm-thick HDPE virgin geomembrane exposed by the Xenon arc weatherometer for 2160 h and the ultraviolet fluorescent weatherometer for 8760 h to understand the geomembrane’s behavior under ultraviolet exposure. The evaluation was performed using the melt flow index (MFI) test, oxidative-induction time (OIT) tests, tensile test, differential scanning calorimetry (DSC) analysis, and Fourier transform infrared spectroscopy (FTIR) analysis. The sample exposed in the Xenon arc equipment showed a tendency to increase the MFI values during the exposure time. This upward trend may indicate morphological changes in the polymer. The tensile behavior analysis showed a tendency of the sample to lose ductility, without showing brittle behavior. The samples’ OIT test results under both device exposures showed faster antioxidant depletion for the standard OIT test than the high-pressure OIT test. The DSC and FTIR analyses did not demonstrate the polymer’s changes.https://www.mdpi.com/2077-0375/11/6/390high-density polyethylenegeomembraneultraviolet radiationdurabilitythermal analysis |
| spellingShingle | Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Érica Fernanda da Silva Tirelli Maria de Lurdes Lopes Jefferson Lins da Silva Laboratory Study of the Ultraviolet Radiation Effect on an HDPE Geomembrane Membranes high-density polyethylene geomembrane ultraviolet radiation durability thermal analysis |
| title | Laboratory Study of the Ultraviolet Radiation Effect on an HDPE Geomembrane |
| title_full | Laboratory Study of the Ultraviolet Radiation Effect on an HDPE Geomembrane |
| title_fullStr | Laboratory Study of the Ultraviolet Radiation Effect on an HDPE Geomembrane |
| title_full_unstemmed | Laboratory Study of the Ultraviolet Radiation Effect on an HDPE Geomembrane |
| title_short | Laboratory Study of the Ultraviolet Radiation Effect on an HDPE Geomembrane |
| title_sort | laboratory study of the ultraviolet radiation effect on an hdpe geomembrane |
| topic | high-density polyethylene geomembrane ultraviolet radiation durability thermal analysis |
| url | https://www.mdpi.com/2077-0375/11/6/390 |
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