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<p>This study explored the multi-objective optimization of certain mechanical properties of polyester composite plates, fabricated using Sida Rhombifolia and raffia fibers in a unified structure, utilizing Taguchi multi-criteria decision-making methodologies (MEREC and WASPAS). Employing the CRITIC (Criteria Importance Through Inter-criteria Correlation) weighting and WASPAS (Weighted Aggregated Sum Product Assessment) ranking methodology. Reinforcing the composites were two surface modification treatments and three weight ratios of raffia and Sida Rhombifolia natural fibers, and the matrix substance was polyester resin. The experiment followed an orthogonal experimental design with a Taguchi L18, 2–3 level setup. Mechanical parameters such as tensile strength, tensile modulus, flexural modulus, and impact strength were chosen. The study found ideal composite plate by determining the optimal amounts of the components that correlate to the best mechanical qualities. A Raffia/Sida Rhombifolia/Rida rhombifolia/Raffia sequence with total fiber weight of 25% was used to create the final composite with fiber-reinforced polyester composite treated with 3% NaOH. With a tensile modulus of 745.69&#xa0;MPa, a flexural modulus of 3.04 GPa, a flexural strength of 60.30&#xa0;MPa, a tensile strength of 34.19&#xa0;MPa, and an impact strength of 2.39&#xa0;kJ/m2, this composite exhibited the superior mechanical properties. Applying 3% NaOH effectively bonded the fibers to the matrix while maintaining their structural integrity as shown in the SEM images.</p>

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Multi-objective optimization of Sida Rhombifolia–raffia fiber–reinforced polyester composites using Taguchi, CRITIC and WASPAS approach

  • 期刊论文

  • 发表日期：

    2026年4月22日

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  • Chinnadurai R,
  • Suresh Kumar K,
  • Senthilkumar G,
  • Ganesh Babu L,
  • Sathya Velmurugan,
  • Kumaresan J,
  • Sruthilaya U

摘要

This study explored the multi-objective optimization of certain mechanical properties of polyester composite plates, fabricated using Sida Rhombifolia and raffia fibers in a unified structure, utilizing Taguchi multi-criteria decision-making methodologies (MEREC and WASPAS). Employing the CRITIC (Criteria Importance Through Inter-criteria Correlation) weighting and WASPAS (Weighted Aggregated Sum Product Assessment) ranking methodology. Reinforcing the composites were two surface modification treatments and three weight ratios of raffia and Sida Rhombifolia natural fibers, and the matrix substance was polyester resin. The experiment followed an orthogonal experimental design with a Taguchi L18, 2–3 level setup. Mechanical parameters such as tensile strength, tensile modulus, flexural modulus, and impact strength were chosen. The study found ideal composite plate by determining the optimal amounts of the components that correlate to the best mechanical qualities. A Raffia/Sida Rhombifolia/Rida rhombifolia/Raffia sequence with total fiber weight of 25% was used to create the final composite with fiber-reinforced polyester composite treated with 3% NaOH. With a tensile modulus of 745.69 MPa, a flexural modulus of 3.04 GPa, a flexural strength of 60.30 MPa, a tensile strength of 34.19 MPa, and an impact strength of 2.39 kJ/m2, this composite exhibited the superior mechanical properties. Applying 3% NaOH effectively bonded the fibers to the matrix while maintaining their structural integrity as shown in the SEM images.