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<p>The incorporation of natural and synthetic fibers enhances the properties of polymer hybrid composites, offering benefits such as cost-effective manufacturing, potential replacement for plastics, and reduced weight compared to metal components. This research focuses on developing and improving the functional properties of a polylactic acid (PLA) hybrid composite reinforced with hemp and glass fibers using compression molding at 10 MPa pressure. The effects of natural hemp and synthetic glass fibers on the composite’s microstructural and mechanical properties were evaluated. Compared to a hybrid composite with 75 % hemp and 25 % glass fibers, the composite with 25 % hemp and 75 % glass fibers exhibited a 113 % increase in tensile strength, a 240 % increase in flexural strength, a 58 % increase in impact strength, a 72 % increase in hardness, and a 5.1 % reduction in moisture absorption. These hybrid composites have potential applications in various automotive components, including panels, fenders, engine parts, and brake pad materials.</p>

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Processing and evaluation of hybrid fiber reinforced PLA composites using compression molding technique

  • 期刊论文

  • 发表日期：

    2025年10月8日

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  • J. Chandradass,
  • T. Thirugnanasambandham,
  • R. Mariappan,
  • P. Jawahar,
  • M. Nageswaran

摘要

The incorporation of natural and synthetic fibers enhances the properties of polymer hybrid composites, offering benefits such as cost-effective manufacturing, potential replacement for plastics, and reduced weight compared to metal components. This research focuses on developing and improving the functional properties of a polylactic acid (PLA) hybrid composite reinforced with hemp and glass fibers using compression molding at 10 MPa pressure. The effects of natural hemp and synthetic glass fibers on the composite’s microstructural and mechanical properties were evaluated. Compared to a hybrid composite with 75 % hemp and 25 % glass fibers, the composite with 25 % hemp and 75 % glass fibers exhibited a 113 % increase in tensile strength, a 240 % increase in flexural strength, a 58 % increase in impact strength, a 72 % increase in hardness, and a 5.1 % reduction in moisture absorption. These hybrid composites have potential applications in various automotive components, including panels, fenders, engine parts, and brake pad materials.