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European countries report a 67% landfilling rate for waste poly(aramid) fabric (PAF), with only 13% recycled and 6% reused. Transforming waste poly(para-aramid) fiber (KevlarTM) into functional composites is deemed eco-friendly and cost-effective for recycling. In poly(aramid)-reinforced structures, inadequate interfacial adhesion is observed due to their crystalline and chemically inert surface. Researchers explore modification techniques like monomer grafting, oxidation, plasma, and X-rays. Here, CO2 laser treatment enhances adhesion between waste poly(aramid) and a 3D-printed matrix. Laser modification alters surface free energy and roughness. Using optical microscope and FESEM, initially the effect of laser energy (20–50 mJ), pulse frequency (100–130 Hz), and interaction time was investigated on morphology and mechanics. Characterization involves, drop shape analyzer, SEM, Izod impact, tensile testing, and ILSS to measure energy absorption, modulus, strength, and adhesion, highlighting the impact of laser power and time on surface properties and mechanical enhancements in 3D printed composites.

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Effects of Laser Treatment on Interfacial Properties of Waste Poly(aramid) Fiber for 3D Printed Composite

  • 会议论文

  • 发表日期：

    2025年

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  • Jigar Patadiya,
  • Ramdayal Yadav,
  • Devnath Dhirhe,
  • Minoo Naebe,
  • Balasubramanian Kandasubramanian

摘要

European countries report a 67% landfilling rate for waste poly(aramid) fabric (PAF), with only 13% recycled and 6% reused. Transforming waste poly(para-aramid) fiber (KevlarTM) into functional composites is deemed eco-friendly and cost-effective for recycling. In poly(aramid)-reinforced structures, inadequate interfacial adhesion is observed due to their crystalline and chemically inert surface. Researchers explore modification techniques like monomer grafting, oxidation, plasma, and X-rays. Here, CO2 laser treatment enhances adhesion between waste poly(aramid) and a 3D-printed matrix. Laser modification alters surface free energy and roughness. Using optical microscope and FESEM, initially the effect of laser energy (20–50 mJ), pulse frequency (100–130 Hz), and interaction time was investigated on morphology and mechanics. Characterization involves, drop shape analyzer, SEM, Izod impact, tensile testing, and ILSS to measure energy absorption, modulus, strength, and adhesion, highlighting the impact of laser power and time on surface properties and mechanical enhancements in 3D printed composites.