Development and multi-response optimization of sustainable hemp fibre/cassia gum reinforced polyester hybrid composites for structural and insulation applications
Abstract
The growing demand for lightweight and sustainable materials has prompted the development of natural fibre-reinforced polymer composites with multi-functional properties. In this study, hemp fiber/Cassia gum reinforced polyester hybrid composites (HC0–HC5) were prepared by hand lay-up and then compression molding. The effect of Cassia gum loading on mechanical, thermo-mechanical, thermal, dielectric, morphological, and water absorption properties was systematically investigated. Tensile, flexural, impact, dynamic mechanical, dielectric strength, water absorption, SEM, FTIR, DSC, TGA, and DTG analyzes were carried out. Overall differences among the HC0-HC5 formulations were evaluated by one-way analysis of variance (ANOVA) and equal-weight multi-response optimization. The overall performance enhanced with increasing Cassia gum loading up to HC3. The HC3 formulation showed the best overall performance among the investigated formulations, with tensile strength of 46.5 MPa, flexural strength of 69.3 MPa, impact strength of 5.70 kJ/m ² , storage modulus of 4250 MPa, dielectric strength of 16.3 kV/mm, and Tmax of 411 °C. The water absorption increased with Cassia gum loading, but HC3 showed the best overall performance index of 91.4%. ANOVA showed significant differences in formulations overall ( p < 0.05). These results provide a base for further research on sustainable hemp fibre/Cassia gum reinforced polyester composites for multifunctional engineering applications.
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BibTeX
@article{anbalagan2026development,
title = {{Development and multi-response optimization of sustainable hemp fibre/cassia gum reinforced polyester hybrid composites for structural and insulation applications}},
author = {Arunkumar Anbalagan and Elangovan Thangapandian and Baranitharan Paramasivam and Siddharth Narasinh Irayyanavar and Nigilesh Manivasagan and B. Sathya Prakash and J. Rithish Kumar and Malinee Sriariyanun and Mohan Karupasami and Mamaru Wutabachew Yeshachew},
journal = {Scientific Reports},
year = {2026},
month = oct,
doi = {10.1038/s41598-026-73576-7},
url = {https://www.nature.com/articles/s41598-026-73576-7},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Development and multi-response optimization of sustainable hemp fibre/cassia gum reinforced polyester hybrid composites for structural and insulation applications
AU - Arunkumar Anbalagan
AU - Elangovan Thangapandian
AU - Baranitharan Paramasivam
AU - Siddharth Narasinh Irayyanavar
AU - Nigilesh Manivasagan
AU - B. Sathya Prakash
AU - J. Rithish Kumar
AU - Malinee Sriariyanun
AU - Mohan Karupasami
AU - Mamaru Wutabachew Yeshachew
PY - 2026
DA - 2026/10/12
JO - Scientific Reports
DO - 10.1038/s41598-026-73576-7
UR - https://www.nature.com/articles/s41598-026-73576-7
AB - The growing demand for lightweight and sustainable materials has prompted the development of natural fibre-reinforced polymer composites with multi-functional properties. In this study, hemp fiber/Cassia gum reinforced polyester hybrid composites (HC0–HC5) were prepared by hand lay-up and then compression molding. The effect of Cassia gum loading on mechanical, thermo-mechanical, thermal, dielectric, morphological, and water absorption properties was systematically investigated. Tensile, flexural, impact, dynamic mechanical, dielectric strength, water absorption, SEM, FTIR, DSC, TGA, and DTG analyzes were carried out. Overall differences among the HC0-HC5 formulations were evaluated by one-way analysis of variance (ANOVA) and equal-weight multi-response optimization. The overall performance enhanced with increasing Cassia gum loading up to HC3. The HC3 formulation showed the best overall performance among the investigated formulations, with tensile strength of 46.5 MPa, flexural strength of 69.3 MPa, impact strength of 5.70 kJ/m ² , storage modulus of 4250 MPa, dielectric strength of 16.3 kV/mm, and Tmax of 411 °C. The water absorption increased with Cassia gum loading, but HC3 showed the best overall performance index of 91.4%. ANOVA showed significant differences in formulations overall ( p < 0.05). These results provide a base for further research on sustainable hemp fibre/Cassia gum reinforced polyester composites for multifunctional engineering applications.
SN - 2045-2322
ER -