Synergistic enhancement of flame retardancy and thermal energy storage in rigid polyurethane foams by optimizing isocyanate index with expandable graphite, aluminum hydroxide, and phase change microcapsules
With increasing awareness of fire safety, research on the flame retardancy of rigid polyurethane foams (RPUFs) has attracted extensive attention. However, previous studies on flame retardant formulations are not fully applicable to energy-storing polyurethane foams that require both high flame retardancy and thermal...