Polymer processing (intro)
Polymer Chemistry (Applied) · Chemistry
Study notes
How is a plastic bottle made? Trace the process. Step 1: PET pellets melted, extruded into parison (tube). Step 2: Parison placed in bottle mould; compressed air inflates it. Step 3: Plastic presses against cold mould → solidifies as bottle. Step 4: Blow moulding — air shapes plastic!