Clarity of PET/PBS films with TiO2 and ZnO
In this section, thin film of PET/PBS blend at the ratio of 90:10 was chosen to study of influence of TiO2 and ZnO
on thin film properties of PET: PBS blends by consideration of film clarity.
The clarity of PET/PBS films with TiO2 and ZnO content (each would be added with 1% and 2%wt) were shown
in Fig. 3. PET/PBS films with TiO2 and ZnO (Fig. 3b-e) illustrated more opacity than PET/PBS films (Fig. 3a) due
to the naturally white powder of TiO2 and ZnO. The addition of TiO2 made film less transparency than ZnO because
TiO2 particles were physically smaller than ZnO particles as shown in Fig. 4. The more content of the white powder
at 2%, the more opacity of the films would be obtained