enhancing fire retardancy in polyurethane foams with thermosensitive catalyst sa-1 introduction 🌟 polyurethane foams (pufs) have become indispensable materials in our modern world, finding applications in furniture, automotive interiors, insulation, and countless other sectors. however, these versatile foams come with a significant drawback—they are highly flammable. when exposed to heat or flames, pufs can combust...