图1：包装材料要求。.............................................................................. 9 Figure 2: PHAs Structure (Gomes Gradíssimo et al., 2020) .................................................... 12 Figure 3: PHBV structure (Boufarguine et al., 2013) .............................................................. 14 Figure 4:PLA structure (Boufarguine et al., 2013) .................................................................. 15 Figure 5:PBAT structure (Nobrega et al., 2012) ...................................................................... 19 Figure 6:Physical modification through blending will be used in our current project............. 23 Figure 7:Polymer blending ....................................................................................................... 24 Figure 8:Thermo Fisher Process 11 Extruder........................................................................... 25 Figure 9:Injection moulding ..................................................................................................... 25 Figure 10:conveyor belt section.41 Figure 24:TGA weight results 50%:50% blends ...................................................................... 41 Figure 25:TGA Derive weight, neat materials......................................................................... 42 Figure 26:TGA Derive weight 75%:25% blends..................................................................... 42............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................................................................................................................................................................................... 75％的结晶度：25％混合物................................................................................................................................. ............................................................................... 34 Figure 17: Enthalpy cure for 75%:25% blends .................................................................................................................................................. 34 Figure 18: Enthalpy curve for 50%:50% blends ...................................................................... 34 Figure 19:FTIR neat materials ................................................................................................. 37 Figure 20:FTIR results, PHBV & PLA blends ........................................................................ 37 Figure 21:FTIR results, PHBV & PBAT blends ...................................................................... 38 Figure 22:TGA weight results, neat materials ......................................................................... 41 Figure 23: TGA weight results 75%:25% blends .