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Preparation And Performance Of Halogen-Free Flame Retardant Bio-Based Polyurethane Composites With Circular Economy And Net Zero Trend

Author

Listed:
  • CHEN-FENG KUAN

    (Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung City, Taiwan, R.O.C.)

  • CHIN-LUNG CHIANG

    (Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung City, Taiwan, R.O.C.)

  • CHANE-YUAN YANG

    (Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung City, Taiwan, R.O.C.)

  • MIN-CHIN CHUNG

    (Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung City, Taiwan, R.O.C.)

  • HSU-CHIANG KUAN

    (Department of Chemical and Materials Engineering, Southern Taiwan University of Science and Technology, Tainan City 710, Taiwan)

Abstract

This study involves the surface modification of rice husk (RH) using phosphoric acid, and successfully synthesizing a novel bio-based intumescent flame retardant (ADP-RH) by combining ammonia water. ADP-RH serves as a source of acid, carbon, and gas. When incorporated at only 15wt.% into bio-based thermoplastic polyurethane (TPU) without the use of petrochemical flame retardants, the limiting oxygen index (LOI) of the composite material reaches 29%, and it achieves a V0 flame retardant rating in the UL 94 test. ADP-RH enhances the compatibility between the flame retardant and bio-based TPU, achieving excellent flame retardancy at low concentrations. This work provides valuable insights for the development of bio-based TPU composite materials suitable for various applications.

Suggested Citation

  • Chen-Feng Kuan & Chin-Lung Chiang & Chane-Yuan Yang & Min-Chin Chung & Hsu-Chiang Kuan, 2025. "Preparation And Performance Of Halogen-Free Flame Retardant Bio-Based Polyurethane Composites With Circular Economy And Net Zero Trend," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 32(08), pages 1-5, August.
    • Handle: RePEc:wsi:srlxxx:v:32:y:2025:i:08:n:s0218625x25400116
    DOI: 10.1142/S0218625X25400116
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