Fabrication and properties investigation of flame retardant rigid polyurethane composites based on converter OG sludge (a metallurgical by-product): A novel strategy for solid waste utilization

Yani Zhang, Zhen Dai, Xunyi Wang, Xinjie Huang, Zimin Liu, Qiang Wu, Kang Dai, Xiuyu Liu, Gang Tang, School of Civil Engineering and Architecture, Anhui University of Technology, School of Materials Science and Engineering, Anhui University of Technology, Technology Center, Maanshan Iron , Steel Limited Company, School of Environmental Science and Engineering, Guangdong University of Technology

Journal of Thermoplastic Composite Materials

Published online on December 20, 2025

Abstract

Journal of Thermoplastic Composite Materials, Ahead of Print.
This study proposes a novel strategy for the value-added utilization of converter OG sludge by incorporating it as a flame-retardant additive in rigid polyurethane foam (RPUF). A series of RPUF/OG composites were fabricated via a one-step all-water ...