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<p>A comparative study on the mechanical performance of two matrix-based laminates using thermoset unsaturated polyester and acrylic thermoplastic Elium<sup>®</sup>150 resins was presented. For each matrix type, two synthetic woven glass and basalt fibers, and a natural unidirectional flax fabric were used as reinforcements. All laminates were manufactured using vacuum infusion process to ensure uniform distribution and homogeneous structure. Tension, three-point bending, loading-unloading tension, and Charpy impact tests were carried out, providing key mechanical properties requested for the comparative analysis. The results showed that Elium<sup>®</sup>150 resin combined with glass and basalt fibers achieved the highest tensile modulus (up to 15 GPa) and flexural strength (up to 520 MPa), while basalt-reinforced composites exhibited the best impact resistance (up to 287 kJ/m<sup>2</sup>). In contrast, unsaturated polyester resin provided better tensile modulus and flexural properties when used with flax fibers (tensile modulus up to 10 GPa in the longitudinal direction). These findings highlight the superior matrix/ reinforcement compatibility of Elium<sup>®</sup>150 with synthetic fibers and of unsaturated polyester with natural fibers.</p>

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Comparative Study on the Mechanical Performance of Unsaturated Polyester and Elium® Matrix-Based Laminates Reinforced with Various Synthetic and Natural Weaves

  • 期刊论文

  • 发表日期：

    2026年1月20日

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  • Hana Dammak,
  • Bilel Miled,
  • Slim Kammoun,
  • Khaled Elleuch,
  • Laurent Cauret

摘要

A comparative study on the mechanical performance of two matrix-based laminates using thermoset unsaturated polyester and acrylic thermoplastic Elium®150 resins was presented. For each matrix type, two synthetic woven glass and basalt fibers, and a natural unidirectional flax fabric were used as reinforcements. All laminates were manufactured using vacuum infusion process to ensure uniform distribution and homogeneous structure. Tension, three-point bending, loading-unloading tension, and Charpy impact tests were carried out, providing key mechanical properties requested for the comparative analysis. The results showed that Elium®150 resin combined with glass and basalt fibers achieved the highest tensile modulus (up to 15 GPa) and flexural strength (up to 520 MPa), while basalt-reinforced composites exhibited the best impact resistance (up to 287 kJ/m2). In contrast, unsaturated polyester resin provided better tensile modulus and flexural properties when used with flax fibers (tensile modulus up to 10 GPa in the longitudinal direction). These findings highlight the superior matrix/ reinforcement compatibility of Elium®150 with synthetic fibers and of unsaturated polyester with natural fibers.