A novel triazine-based covalent organic framework: Enhancement fire resistance and mechanical performances of thermoplastic polyurethanes

In this study, we decided to synthesize a flame-retardant triazine-based covalent organic framework (FT-COF) via solvothermal reaction, to improve the fire safety and mechanical properties of thermoplastic polyurethane (TPU). By adding 3.0 wt% of FT-COF, the tensile strength and elongation of TPU increased by 69% and 12%, respectively. After incorporating of FT-COF nanoparticles, the thermal stability of TPU was significantly improved that...