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      Influence of accelerated ageing on the physico-mechanical properties of alkali-treated industrial hemp fibre reinforced poly(lactic acid) (PLA) composites

      Islam, Mohammad Saiful; Pickering, Kim L.; Foreman, Nic J.
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      Pickering Accelerated aging.pdf
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      DOI
       10.1016/j.polymdegradstab.2009.10.010
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      Islam, M. S., Pickering, K. L. & Foreman, N. J. (2010). Influence of accelerated ageing on the physico-mechanical properties of alkali-treated industrial hemp fibre reinforced poly(lactic acid) (PLA) composites. Polymer Degradation and Stability, 95(1), 59-65.
      Permanent Research Commons link: https://hdl.handle.net/10289/3555
      Abstract
      30 wt% aligned untreated long hemp fibre/PLA (AUL) and aligned alkali treated long hemp fibre/PLA (AAL) composites were produced by film stacking and subjected to accelerated ageing. Accelerated ageing was carried out using UV irradiation and water spray at 50 °C for four different time intervals (250, 500, 750 and 1000 h). After accelerated ageing, tensile strength (TS), flexural strength, Young's modulus (YM), flexural modulus and mode I fracture toughness (KIc) were found to decrease and impact strength (IS) was found to increase for both AUL and AAL composites. AUL composites had greatest overall reduction in mechanical properties than that for AAL composites upon exposure to accelerated ageing environment. FTIR analysis and crystallinity contents of the accelerated aged composites support the results of the deterioration of mechanical properties upon exposure to accelerated ageing environment.
      Date
      2010
      Type
      Journal Article
      Publisher
      Elsevier
      Rights
      This is an author’s accepted version of an article published in the journal: Polymer Degradation and Stability. Copyright © 2009 Elsevier Ltd.
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      • Science and Engineering Papers [3011]
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