Thermal, Rheological and Mechanical Properties of PETG/rPETG Blends | SpringerLink
PLA Glass Transition Temperature | The Definitive guide - PlasticRanger
Effects of Temperature on PLA and PETG 3d Printing Filament - YouTube
PETG vs ABS vs ASA
Here's data from differential scanning calorimetry (DSC) for ABS and PETG. These are amorphous plastics with no true melting point - they just gradually get less viscous with temperature. That's one reason
How to improve your 3D prints with annealing - Original Prusa 3D Printers
PLA and PETG properties [12, 13] | Download Scientific Diagram
How to improve your 3D prints with annealing - Original Prusa 3D Printers