Polymers — Polyethylene terephthalate (PET)

Polyethylene terephthalate (PET) is a semi-crystalline thermoplastic polymer with a relatively slow CrystallizationCrystallization is the physical process of hardening during the formation and growth of crystals. During this process, heat of crystallization is released.crystallization rate.

In the DSC experiments, the various levels of amorphousness (Tg 75°C-85°C) and Crystallinity / Degree of CrystallinityCrystallinity refers to the degree of structural order of a solid. In a crystal, the arrangement of atoms or molecules is consistent and repetitive. Many materials such as glass ceramics and some polymers can be prepared in such a way as to produce a mixture of crystalline and amorphous regions.crystallinity (recrystallization 146°C, melting 242°C) are apparent. The samples were cooled from the melt in the DSC 204 F1 Phoenix®® with the intracooler at different rates prior to the heating shown.