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dc.contributor.authorSawpan, Moyeenuddin Ahmaden_NZ
dc.contributor.authorIslam, Muhammad Remanulen_NZ
dc.contributor.authorBeg, Mohammad Dalour Hossainen_NZ
dc.contributor.authorPickering, Kim L.en_NZ
dc.date.accessioned2020-04-27T21:51:02Z
dc.date.available2019-05-01en_NZ
dc.date.available2020-04-27T21:51:02Z
dc.date.issued2019en_NZ
dc.identifier.citationSawpan, M. A., Islam, M. R., Beg, M. D. H., & Pickering, K. L. (2019). Effect of accelerated weathering on physico-mechanical properties of polylactide bio-composites. Journal of Polymers and the Environment, 27(5), 942–955. https://doi.org/10.1007/s10924-019-01405-2en
dc.identifier.issn1566-2543en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/13546
dc.description.abstractIn this work, injection moulded hemp fibre reinforced polylactide bio-composites of different fibre contents (0, 10, 20 and 30 wt%) were subjected to accelerated weathering of 12 h cyclic exposures of UV-light at 60 °C, water spray and condensation at 50 °C for 8, 16, 32, 48 and 64 cycles to study the changes in properties such as crystallinity, tensile, flexural, plane-strain fracture toughness (KIc) and strain energy release rate (GIc). The crystallinity of neat polylactide (PLA) was found to increase up to 50.6% after 64 cycles, whereas the crystallinity of composites of different fibre contents was found to increase in the range of 30.6 to 34.5% for 8 to 64 cycles. The overall mechanical properties (tensile, flexural, KIc and GIc) of the composites decreased as the number of cycles increased from 8 to 64. The crystallinity and the residual tensile strength, tensile modulus, tensile strain, KIc and GIc of the composites of 20 wt% fibres were found to be the highest after 64 cycles. In contrast, the residual flexural strength and flexural modulus of the composites of 30 wt% fibres were found to be the maximum after 64 cycles. Absorption of water, destruction of fibre integrity, degradation of PLA matrix, formation of cracks and pores were found to be the main causes of reduction in the mechanical properties of PLA bio-composites.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherSpringeren_NZ
dc.rights© 2019 Springer Science+Business Media, LLC, part of Springer Nature.This is the author's accepted version. The final publication is available at Springer via dx.doi.org/10.1007/s10924-019-01405-2
dc.subjectScience & Technologyen_NZ
dc.subjectTechnologyen_NZ
dc.subjectPhysical Sciencesen_NZ
dc.subjectEngineering, Environmentalen_NZ
dc.subjectPolymer Scienceen_NZ
dc.subjectEngineeringen_NZ
dc.subjectAccelerated weatheringen_NZ
dc.subjectBio-compositeen_NZ
dc.subjectCrystallinityen_NZ
dc.subjectHemp fibreen_NZ
dc.subjectPolylactideen_NZ
dc.subjectLACTIC-ACID PLAen_NZ
dc.subjectMECHANICAL-PROPERTIESen_NZ
dc.subjectPOLY(LACTIC ACID)en_NZ
dc.subjectBIODEGRADABLE COMPOSITESen_NZ
dc.subjectHYDROLYTIC DEGRADATIONen_NZ
dc.subjectTENSILE PROPERTIESen_NZ
dc.subjectBEHAVIORen_NZ
dc.subjectBIOCOMPOSITESen_NZ
dc.subjectCRYSTALLINITYen_NZ
dc.subjectCELLULOSEen_NZ
dc.titleEffect of accelerated weathering on physico-mechanical properties of polylactide bio-compositesen_NZ
dc.typeJournal Article
dc.identifier.doi10.1007/s10924-019-01405-2en_NZ
dc.relation.isPartOfJournal of Polymers and the Environmenten_NZ
pubs.begin-page942
pubs.elements-id236967
pubs.end-page955
pubs.issue5en_NZ
pubs.publication-statusPublisheden_NZ
pubs.volume27en_NZ
dc.identifier.eissn1572-8919en_NZ


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