thumb|140px|The repeating unit within polyethylene in the most stable staggered conformation
Polyethylene is a plastic made from repeating units of a simple hydrocarbon molecule linked together in a chain. It's one of the most widely used plastics in the world because it's cheap to produce, flexible, and durable, making it useful for everything from bags and bottles to packaging materials.
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thumb|140px|The repeating unit within polyethylene in the most stable staggered conformation
Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(methylene)) is the most commonly produced plastic. It is a polymer, primarily used for packaging (plastic bags, plastic films, geomembranes and containers including bottles, cups, jars, folders, etc.). , over 100 million tonnes of polyethylene resins are being produced annually, accounting for 34% of the total plastics market.
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