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What is the difference between LDPE, LLDPE, and HDPE?

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Polyethylene, one of the world’s most widely used plastics, can be divided into several categories, each with different characteristics and densities. Below is a list of the categories of polyethylene (PE) used by Polykar: • LDPE (Low density polyethylene): Polyethylene with a density of 0.91 to 0.94, prepared at very high pressures, and used mainly for sheeting, films, and packaging materials. • LLDPE (Linear low density polyethylene): Linear polyethylene with a density of .92, used mainly for plastic bags, sheeting, stretch wrap, and tubing. • HDPE (High density polyethylene): Polyethylene with a density of 0.96 or more, produced at low pressure and used chiefly for containers and articles made by injection molding and certain types of bags. more
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