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Plastic polyethylene raw material and classifications

Dec 25, 2017

Plastic polyethylene raw material and classifications

Polyethylene is considered as thermoplastic polymer that consists of long hydrocarbon chains. Polyethylene is the most common plastic which is used worldwide. And it is classified in different categories based on branching and density.

High density polyethylene (HDPE) - High density polyethylene is composed of low degree of branching with a low intermolecular force and tensile strength. It is ideal for packaging and products like bottles, buckets, garbage container, tubes and many more.

Low density polyethylene (LDPE) – this LDPE is a thermoplastic; it has high ductility and lower tensile strength. LDPE is constructed with a lower tensile strength with increased ductility; it is made by free radical polymerization and ideally used for both plastic film and rigid container application such as film wraps and plastic bags and widely used in manufacturing of various range of containers, bottles, plastic bags, tubing and many more.

Linear low density polyethylene (LLDPE) – commonly furnished by copolymerization of ethylene. It has higher tensile strength compared to Low density polyethylene (LDPE) and also constructed with higher puncture and impact resistance than LDPE. LLDPE is tough and flexible with relatively transparency which is suitable for film.

Ultra high molecular weight polyethylene (UHMWPE)

Cross linked polyethylene (PEX or XLPE)

Very low density polyethylene (VLDPE)

Chlorinated Polyethylene (CPE)

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