Which Rigid Plastics Can Be Recycled Into Plastic Pellets?
The main rigid plastics that can be recycled into plastic pellets include polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), and polyvinyl chloride (PVC). The plastic recycling and pelletizing process typically involves the following steps:
Crushing and Cleaning: Waste plastics are first crushed into small pieces using a plastic crusher, and then into a plastic washing machine to remove impurities and dirt.
Melting and extrusion: Small pieces of crushed plastic are melted at high temperatures to form a homogeneous melt. Next, the molten plastic is extruded through a plastic extruder to form a long stream of plastic.
Cooling and pelletizing: The extruded plastic stream is rapidly cooled by the cooling water tank, hardened and cut into plastic pellets by the pellet cutting machine.
