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<p>Leather buffing dust, a significant byproduct of the leather industry, poses serious environmental challenges when improperly disposed of. This study explores the potential of utilizing buffing dust to create high-performance composite materials, incorporating natural rubber latex, aluminum oxide, and fish oil. Four composite samples were prepared with varying proportions of aluminum oxide and fish oil, and their mechanical, thermal, and environmental properties were evaluated. Tensile strength, elongation at break, water absorption, and flexing endurance were evaluated according to ASTM D412, ASTM D570, and SATRA TM55 standard test methods. The results showed that the composite made with both aluminum oxide and fish oil (Sample 3) exhibited the best overall performance, with a tensile strength of 4.35&#xa0;MPa, elongation at break of 7%, water absorption capacity of 20%, and an impressive flexing endurance of 75,200 cycles before failure. In contrast, the raw buffing dust composite (Sample 4) demonstrated lower tensile strength (3.72&#xa0;MPa) and higher water absorption (28%). Thermogravimetric analysis (TGA) indicated that the composites with additives (Samples 1, 2, and 3) displayed improved thermal stability compared to the raw buffing dust composite. FTIR and SEM analyses confirmed the successful incorporation and bonding of the buffing dust with the additives. This study presents a sustainable method for recycling leather waste into valuable composites with potential applications in the footwear and leather products industries, contributing to the circular economy and reducing the environmental footprint of leather manufacturing.</p>

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Sustainable polymer composites reinforced with leather waste using natural rubber latex, aluminum oxide and fish oil

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月15日

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  • Md. Farhad Ali,
  • Rupok Kumar Nayak,
  • Mohammad Al Shahriar Khan,
  • Md. Ahsanul Haque Milon,
  • Md. Abdus Shabur

摘要

Leather buffing dust, a significant byproduct of the leather industry, poses serious environmental challenges when improperly disposed of. This study explores the potential of utilizing buffing dust to create high-performance composite materials, incorporating natural rubber latex, aluminum oxide, and fish oil. Four composite samples were prepared with varying proportions of aluminum oxide and fish oil, and their mechanical, thermal, and environmental properties were evaluated. Tensile strength, elongation at break, water absorption, and flexing endurance were evaluated according to ASTM D412, ASTM D570, and SATRA TM55 standard test methods. The results showed that the composite made with both aluminum oxide and fish oil (Sample 3) exhibited the best overall performance, with a tensile strength of 4.35 MPa, elongation at break of 7%, water absorption capacity of 20%, and an impressive flexing endurance of 75,200 cycles before failure. In contrast, the raw buffing dust composite (Sample 4) demonstrated lower tensile strength (3.72 MPa) and higher water absorption (28%). Thermogravimetric analysis (TGA) indicated that the composites with additives (Samples 1, 2, and 3) displayed improved thermal stability compared to the raw buffing dust composite. FTIR and SEM analyses confirmed the successful incorporation and bonding of the buffing dust with the additives. This study presents a sustainable method for recycling leather waste into valuable composites with potential applications in the footwear and leather products industries, contributing to the circular economy and reducing the environmental footprint of leather manufacturing.