Polyethylene

The properties of Polyethylene (PE) can be divided into chemical, thermal, mechanical, electrical and optical . Polyethylene (PE) due to their symmetric molecular structure, tend to crystallize. Higher crystallinity increases density thus better chemical and mechanical stability. PE based on their density and branching can be classified as:

High Density Polyethylene (HDPE)

High density polyethylene (HDPE) is a polyethylene thermoplastics made from the polymerization of ethylene in gas phase, slurry or solution reactors. Polymerization happens under low-pressure conditions with the support of catalysts. HDPE is used for various applications such as pressure pipe, bottles and containers, blown films, wire and cable insulation etc.

Linear low density polyethylene (LLDP) is a polyethylene with low density density < 965 kg/m, which is produced from copolymerization of the ethylene with longer chain olefin monomers. LLDPE differs structruly from LDPE beccuse of its longer chain branching. LLDPE is used for oriented tape, low voltage power cable insulation, plastic bags and sheets.

Low Density Polyethylene (LDPE)

Low density polyethylene (LDPE) is thermoplastics made from the polymerization of ethylene in tubular reactors at very high pressures. It has excellent resistance to dilute and concentrated acids, alcohols and esters. LDPE is widely used for producing various containers, bottles, tubing, and plastic bags.