Polyethylene (PE) is a thermoplastic polymer that is the most commonly produced plastic in the world. It is primarily used for packaging and has a vast range of applications depending on the particular type. Here are some key properties of polyethylene:
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Chemical composition: Polyethylene consists of nonpolar, saturated, high-molecular-weight hydrocarbons, and its chemical behavior is similar to paraffin. The basic polyethylene composition can be modified by the inclusion of other elements or chemical groups.
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Crystalline structure: Polyethylene is partially crystalline, and higher crystallinity increases density and mechanical and chemical stability.
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Types: Polyethylene is available in different crystalline structures, referred to as HDPE, LDPE, LLDPE, UHMWPE, and PEX or XLPE. LDPE is a semi-rigid polymer with low crystallinity, while HDPE is a linear version of polyethylene.
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Durability: Polyethylene is a very durable material that is resistant to fading and chipping, and it retains its properties in extremely cold conditions.
Polyethylene is used in a wide range of products, including plastic bags, bottles, toys, and pipes.
