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      Treatment of hemp fibres for use in rotational moulding

      Oliveira, Maria A.S.; Pickering, Kim L.; Sunny, Tom; Lin, Richard J.T.
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      Oliveira_accepted manuscript.pdf
      Accepted version, 1.903Mb
      DOI
       10.1007/s10965-021-02414-3
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      Oliveira, M. A. S., Pickering, K. L., Sunny, T., & Lin, R. J. T. (2021). Treatment of hemp fibres for use in rotational moulding. Journal of Polymer Research, 28(2). https://doi.org/10.1007/s10965-021-02414-3
      Permanent Research Commons link: https://hdl.handle.net/10289/14090
      Abstract
      The benefit of using alkali-treated hemp fibre as the reinforcement for rotationally moulded evaluated in this research. Untreated and alkali treated hemp fibre were characterised using different techniques such as scanning electron microscopy (SEM), thermal analysis, and Fourier transform infrared spectroscopy (FT-IR). These techniques showed that the alkali treatment removed non-cellulosic components from hemp fibres, which improved their separation and thermal resistance. Composites with alkali treated fibre resisted the exposure to elevated temperatures for prolonged periods (characteristic of the rotational moulding process) with no apparent signs of thermal degradation, unlike when untreated fibre was used. The effect of using maleic anhydride grafted polyethylene (MAPE) as a coupling agent was also investigated. The addition of 3 wt% MAPE improved the properties tensile strength and Young’s modulus of composites with treated hemp fibre, which was attributed to better fibre-matrix adhesion. Different fibre contents were assessed in this research to produce rotationally moulded composites; a poor fibre distribution was observed above 5 wt% fibre content, which resulted in low tensile strength and Young’s modulus.
      Date
      2021
      Type
      Journal Article
      Publisher
      Springer
      Rights
      This is a post-peer-review, pre-copyedit version of an article published in Journal of Polymer Research. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10965-021-02414-3. © The Polymer Society, Taipei 2021.
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