PET Parallel double screw granulating machine line: how to keep the IV ( viscosity ) and property of PET ?
▶ Dry enough of PET Scrap/ Flake before extruding
▶ Control the screw temperature and speed to reduce the PET Scrap staying time
▶ Add chain extender
▶ Antioxidants are optional, but not much
Next :The gas that is exhausted during the PET Scrap extruding/heating is poison or not?