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<p>Building materials are increasingly designed and manufactured in accordance with the concept of sustainability. In this article, a panel board was fabricated from a biocomposite of palm fibre and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by transfer moulding. PHBV was combined with polyethylene glycol (PEG) and hemp microcrystalline cellulose (MCC) to enhance adhesion with palm fibre. Blending PHBV with PEG at a ratio of 95%:5% increased hydrophilicity, and adding 6% MCC (89%/5%/6%) boosted polarity. Dynamic mechanical-thermal analysis indicated PEG serves as the carrier transporting MCC, which acts as a nucleating agent and improves compatibility between PHBV and MCC, thus increasing crystallinity and the crystallite size of PHBV with enhancement of the surface energy of PHBV. The analysis of mechanical properties demonstrated the inclusion of PEG and MCC increased impact resistance of the biocomposite by up to 225%. Finally, 2&#xa0;months of composting test revealed the durability of the palm fibre–PHBV–PEG–MCC6% biocomposite. The results confirmed the design and manufacture of a sustainable biocomposite.</p>

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Compatibility approach of palm fibre–poly(3-hydroxybutyrate-co-3-hydroxyvalerate) biocomposites through a means of surface energy tuning using polyethylene glycol-microcrystalline cellulose: analyses of physicochemical and composting test

  • 期刊论文

  • 发表日期：

    2025年4月21日

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  • Phuthanet Bamrungsiri,
  • Thorsak Kittikorn,
  • Suding Kadea,
  • Rattanawadee Hedthong

摘要

Building materials are increasingly designed and manufactured in accordance with the concept of sustainability. In this article, a panel board was fabricated from a biocomposite of palm fibre and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by transfer moulding. PHBV was combined with polyethylene glycol (PEG) and hemp microcrystalline cellulose (MCC) to enhance adhesion with palm fibre. Blending PHBV with PEG at a ratio of 95%:5% increased hydrophilicity, and adding 6% MCC (89%/5%/6%) boosted polarity. Dynamic mechanical-thermal analysis indicated PEG serves as the carrier transporting MCC, which acts as a nucleating agent and improves compatibility between PHBV and MCC, thus increasing crystallinity and the crystallite size of PHBV with enhancement of the surface energy of PHBV. The analysis of mechanical properties demonstrated the inclusion of PEG and MCC increased impact resistance of the biocomposite by up to 225%. Finally, 2 months of composting test revealed the durability of the palm fibre–PHBV–PEG–MCC6% biocomposite. The results confirmed the design and manufacture of a sustainable biocomposite.