also shows that by increasing the amount of PLA
into the PET or R-PET matrixes slightly increases the crystallization
temperature (Tc) from 198 C to 205 C. Similar
tendency can also see for PET/Chitosan or R-PET/Chitosan
polymer blends with a range of Tc between 197 C and
208 C. Comparing the crystallization temperatures values
in the polymer blends, it can be mentioned that all the
samples have an affinity to preserve Tc value of the PET
matrix (PET or R-PET) and the small differences in the thermal
properties can be associated with a slightly decreased
of the molecular weight of PLA during the processing blend
or to the capacity of chitosan to act as nucleating agent
promoting a faster crystallization of PET in combination
with the crystallinity of the materials.