*2.2. Preparation of PBAT/Ti3C2TX Nanocomposite Biaxial Stretching Films*

The preparation diagram of PBAT/Ti3C2TX nanocomposite biaxial stretching films is shown in Scheme 1. To achieve a better dispersion of Ti3C2TX nanosheets in the PBAT matrix, Ti3C2TX was first mixed with PBAT pellets by melt compounding via a twin extruder to obtain composite casting films. Then the PBAT/Ti3C2TX nanocomposite casting films were biaxially stretched. The effects of Ti3C2TX content on the morphology, thermal stability, and crystallization behavior, as well as mechanical properties of PBAT/Ti3C2TX nanocomposites, were comprehensively evaluated. The PBAT nanocomposite films containing the optimized 1 wt% Ti3C2TX were biaxially stretched under different parameters.
