Polyethylene

Polyethylene (abbreviated PE) or polyethene (IUPAC name polyethene or poly(methylene)) is the most common plastic. The annual global production is approximately 80 million tonnes.[2] Its primary use is in packaging (plastic bag, plastic films, geomembranes, containers including bottles, etc.). Many kinds of polyethylene are known, with most having thechemical formula (C2H4)n. Thus PE is usually a mixture of similar organic compounds that differ in terms of the value ofn.

Polyethylene
Skeletal formula of a polyethylene monomer
Spacefill model of polyethylene
Sample of granulated polyethylene
Names
IUPAC name

Polyethene or Poly(methylene)
Other names

Polyethene
Identifiers
CAS Registry Number
9002-88-4 Yes
Abbreviations PE
ChemSpider
KEGG C19503 Yes
MeSH Polyethylene
Properties
Chemical formula
(C2H4)n
Density 0.91–0.96 g/cm3[1]
Melting point 115–135 °C (239–275 °F; 388–408 K)[1](239–275 °F)
Except where otherwise noted, data are given for materials in their standard state(at 25 °C [77 °F], 100 kPa).
Infobox references

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