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<p>This research investigates the influence of stacking sequence and silane treatment on the shrimp shell powder and hemp viscose fabric on the mechanical, fatigue, and creep behavior of polyester-based hybrid composites. Four different stacking sequences, such as symmetric, alternating, quasi-isotropic, and asymmetric along with silane surface-treatment, were examined across composite series A to D, each incorporated with 0, 1, and 3 vol.% of filler. The results revealed that stacking sequence and filler dispersion significantly influence the composite’s structural performance. Among all configurations, composite designation D2 from the asymmetric stacking series exhibited superior mechanical properties. Similarly, the creep resistance was also highest in composite D2, with minimal strain development over time, reaching just 0.059 at 10,000&#xa0;s. Moreover in fatigue, composite specimen D1 exhibited the best endurance, maintaining high strength values up to 35.2&#xa0;MPa, 29.7&#xa0;MPa, and 24.2&#xa0;MPa at 25%, 50%, and 75% cycle levels. Finally, the microstructure analysis supported the mechanical findings, showing that D2 had uniform dispersion of filler particles due to the silane treatment, while C2 demonstrated strong filler–matrix interfacial bonding. In contrast, A0 showed interfacial separation, correlating with its lower mechanical performance. Overall, the results confirm that an optimized combination of asymmetric stacking and well-dispersed silane-treated filler significantly enhances both short-term and long-term performance of biohybrid composites. These property improved composites could be used in the structural domains where the composites are aimed to be lightweight, strong water resistance, and economical.</p>

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Effect of Aminosilane-Treated Hemp Viscose Fabric and Shrimp Shell Powder on Sustainable Polyethylene Terephthalate Polyester Structural Composite

  • 期刊论文

  • 发表日期：

    2025年9月11日

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  • M. Mohan Prasad,
  • K. Ganesan,
  • N. Ramesh Babu,
  • K. Anand

摘要

This research investigates the influence of stacking sequence and silane treatment on the shrimp shell powder and hemp viscose fabric on the mechanical, fatigue, and creep behavior of polyester-based hybrid composites. Four different stacking sequences, such as symmetric, alternating, quasi-isotropic, and asymmetric along with silane surface-treatment, were examined across composite series A to D, each incorporated with 0, 1, and 3 vol.% of filler. The results revealed that stacking sequence and filler dispersion significantly influence the composite’s structural performance. Among all configurations, composite designation D2 from the asymmetric stacking series exhibited superior mechanical properties. Similarly, the creep resistance was also highest in composite D2, with minimal strain development over time, reaching just 0.059 at 10,000 s. Moreover in fatigue, composite specimen D1 exhibited the best endurance, maintaining high strength values up to 35.2 MPa, 29.7 MPa, and 24.2 MPa at 25%, 50%, and 75% cycle levels. Finally, the microstructure analysis supported the mechanical findings, showing that D2 had uniform dispersion of filler particles due to the silane treatment, while C2 demonstrated strong filler–matrix interfacial bonding. In contrast, A0 showed interfacial separation, correlating with its lower mechanical performance. Overall, the results confirm that an optimized combination of asymmetric stacking and well-dispersed silane-treated filler significantly enhances both short-term and long-term performance of biohybrid composites. These property improved composites could be used in the structural domains where the composites are aimed to be lightweight, strong water resistance, and economical.