fig12
Figure 12. 3D TG-IR spectra of (A) Pure TPU, (B) TPU/APP, and (C) TPU/APP-3BL; the gases products at maximum degradation rate; absorption peak forhydrocarbon compound, carbonyl, aromatic compounds, ethers and Aromatic hydrocarbon (D-I). TPU: Thermoplastic polyurethane; APP: ammonium polyphosphate; PEI: polyethyleneimine; 3D TG-IR: three-dimensional thermogravimetric analysis-infrared spectroscopy.








