3.1.1 Clarity of PET/PBS thin films
A set of films showing the clarity at different ratios of PET/PBS was illustrated in Fig. 1. Pure PET thin film
seemed to exhibit more clarity than pure PBS thin film due to the different size of its crystal. Moreover, the
increment of PBS content led to the gradual haziness of PET/PBS thin films. For instances, the sample which was
labeled (Fig. 1d) with the PET/PBS thin film of ratio 70:30 covered would thus show less clarity when compared
with its counterpart of PET/PBS flat film 90:10