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<p>This research enriches the compatibility and mechanical properties of toluene diisocyanate (TDI) Isocyanate coupling agent featured polyester (PE) composite with 5 % sodium hydroxide treated hemp chopped fiber (HCF) via an injection moulding process. The effectiveness of hemp fiber and TDI processing on surface morphology, mechanical behaviour, and moisture absorption behaviour of PE and its composites are studied. Scanning electron microscope (SEM) analysis revealed that the hemp fiber is effectively dispersed with PE matrix and found wide dispersion results enhanced mechanical properties. The significance of TDI reaction with a hydroxyl group in HCF and PE matrix group resulted in enhanced interface and the composite sample with 15 wt% HCF offered maximum tensile strength of 49 MPa, better impact toughness of 5.6 J/mm<sup>2</sup>, and hiked flexural strength of 58 MPa and lower moisture absorption behaviour of 4.5 %. The better mechanical properties of composite sample 4 (PE/15 wt% HCF) will proposed for automotive seat frame utilization.</p>

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Influence of natural fiber and Isocyanate processing on functional behaviour of polyester composites

  • 期刊论文

  • 发表日期：

    2025年11月4日

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  • Shaik Gulam Abul Hasan,
  • N. Nagabhooshanam,
  • Yogendra Thakur,
  • Ankur Kulshreshta,
  • M. D. Anto Praveena,
  • U. L. Nagendra Kumar,
  • Ramya Maranan,
  • T. Thirugnanasambandham,
  • S. Sathiyamurthy

摘要

This research enriches the compatibility and mechanical properties of toluene diisocyanate (TDI) Isocyanate coupling agent featured polyester (PE) composite with 5 % sodium hydroxide treated hemp chopped fiber (HCF) via an injection moulding process. The effectiveness of hemp fiber and TDI processing on surface morphology, mechanical behaviour, and moisture absorption behaviour of PE and its composites are studied. Scanning electron microscope (SEM) analysis revealed that the hemp fiber is effectively dispersed with PE matrix and found wide dispersion results enhanced mechanical properties. The significance of TDI reaction with a hydroxyl group in HCF and PE matrix group resulted in enhanced interface and the composite sample with 15 wt% HCF offered maximum tensile strength of 49 MPa, better impact toughness of 5.6 J/mm2, and hiked flexural strength of 58 MPa and lower moisture absorption behaviour of 4.5 %. The better mechanical properties of composite sample 4 (PE/15 wt% HCF) will proposed for automotive seat frame utilization.