Poly Ethylene

Poly Ethylene

Polyethylene(PE) is a thermoplastic polymer with a variable crystalline structure and a vast range of applications depending on the particular type. Polyethylene, like other plastics, starts with the distillation of hydrocarbon fuels (ethane in this case) into lighter groups called “fractions,” some of which are combined with other catalysts to produce plastics (typically via polymerization or polycondensation). Well over 80 million tonnes of poly(ethene), often known as polyethylene and polythene, is manufactured each year making it the world’s most important plastic. This accounts for over 60% of the ethene manufactured each year.

Applications

Packaging, Agriculture Films, Mulch Films, Tarpaulin, Caps & Closures, Trash bags, Roto Moulded Tanks, Wire & Cables, Shampoo Bottles, Pipes and Fittings

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Disadvantages

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HDPE

High density polyethylene - HDPE, is a polymer whose monomer is ethylene. It is a thermoplastic with a very high strength to density ratio. HDPE is a very versatile plastic that has a wide range of applications – from pipes to storage bottles. When compared to other plastics, the melting point of high density polyethylene is relatively high.

Features

Application

LDPE

Low-Density Polyethylene (LDPE) is a very flexible material with unique flow properties that makes it particularly suitable for shopping bags and other plastic film applications. LDPE has high ductility but low tensile strength, which is evident in the real world by its propensity to stretch when strained. LDPE is prepared from gaseous ethylene under very high pressures and high temperatures in the presence of oxide initiators. These processes yield a polymer structure with both long and short branches. LDPE is a very flexible material because the branches prevent the polyethylene molecules from packing closely together in hard, stiff, crystalline arrangements making it flexible.

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LLDPE

Linear Low Density Poly Ethylene (LLDPE) is structurally similar to LDPE. It is made by copolymerizing ethylene with 1-butene and smaller amounts of 1-hexene and 1-octene. The resultant structure has a linear backbone, but it has short, uniform branches that, like the longer branches of LDPE, prevent the polymer chains from packing closely together. Overall, LLDPE has similar properties to LDPE and competes for the same markets. The main advantages of LLDPE are that the polymerization conditions are less energy-intensive and that the polymer’s properties may be altered by varying the type and amount of its chemical ingredients.

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Application

UHMWPE

UHMWPE (Ultra High Molecular Weight Polyethylene) is an extremely tough plastic with high abrasion and wear resistance. The versatility of polyethylene has made it a popular plastic for countless industrial applications that require durability, low friction, and chemical resistance. Applications include UHMW wear strips, chain guides, packaging machinery parts.

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Application

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