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<p><?tk 3?>This study presents a sustainable pathway for the valorization of plasticized PVC-coated textile waste through the fabrication and mechanical evaluation of extruded filaments reinforced with PET fibers. By converting complex, multi-material industrial waste into functional products, the work contributes to circular economy goals while addressing the mechanical performance challenges of recycled composites. Experimental results indicate that pure PVC filaments exhibit the highest tensile strength (12.67&#xa0;MPa) and elongation at break (168.7%). The incorporation of PET fibers modifies these properties, reducing tensile strength and elasticity while increasing rigidity —an effect that becomes more pronounced with higher fiber content and larger fiber dimensions. Mechanical characterization under relaxation, creep, and cyclic loading demonstrates that PET fibers significantly affect the viscoelastic response of the composites, resulting in reduced stress relaxation, lower creep deformation, and accelerated fatigue behavior under repeated loading. These findings establish a clear relationship between the mechanical behavior of the developed filaments and their potential for sustainable product design, emphasizing that controlled adjustment of PET fiber size and proportion enables the tailoring of mechanical performance for targeted applications, such as rigid structural components or semi-flexible supports derived from textile waste.</p>

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Mechanical assessment of filaments extruded from PVC-coated textile waste

  • 期刊论文

  • 发表日期：

    2026年1月29日

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  • Walid Chaouch,
  • Atef Sriha,
  • Asma Rahmouni,
  • Mondher Zidi,
  • Slah Msahli

摘要

This study presents a sustainable pathway for the valorization of plasticized PVC-coated textile waste through the fabrication and mechanical evaluation of extruded filaments reinforced with PET fibers. By converting complex, multi-material industrial waste into functional products, the work contributes to circular economy goals while addressing the mechanical performance challenges of recycled composites. Experimental results indicate that pure PVC filaments exhibit the highest tensile strength (12.67 MPa) and elongation at break (168.7%). The incorporation of PET fibers modifies these properties, reducing tensile strength and elasticity while increasing rigidity —an effect that becomes more pronounced with higher fiber content and larger fiber dimensions. Mechanical characterization under relaxation, creep, and cyclic loading demonstrates that PET fibers significantly affect the viscoelastic response of the composites, resulting in reduced stress relaxation, lower creep deformation, and accelerated fatigue behavior under repeated loading. These findings establish a clear relationship between the mechanical behavior of the developed filaments and their potential for sustainable product design, emphasizing that controlled adjustment of PET fiber size and proportion enables the tailoring of mechanical performance for targeted applications, such as rigid structural components or semi-flexible supports derived from textile waste.