PP (5)
PP (Polypropylene) (alos known as polypropene) is a type of plastic often used in plastic containers and pipes and is captured as PP (5) in WikiWaste.
PP (5) is a thermoplastic "addition" polymer made from a combination of propylene monomers[1] and is one of the most commonly used thermoplastics in the world. It is a rigid, semi-crystalline thermoplastic that was first polymerised in 1951 and is used widely today in a range of domestic and industrial applications[2] which include packaging for consumer products, plastic parts for various industries including the automotive industry (such as for automotive dashboards and bumpers), mouldings (for sailing dinghies etc) and fibres such as carpets, baling twine and sports clothing[3].
Properties
- Strength; resistance to heat, chemicals, grease and oil; moisture barrier.
Common Applications
- Reusable microwaveable ware or take-away containers; kitchenware; yogurt or margerine containers; disposable cups and plates; soft drink bottle caps.