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Polyethylene - low density (LDPE) CAS No: 9002-88-4

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Low density polyethylene (LDPE) is used mainly in film applications for both packaging and non-packaging uses. Other markets include extrusion coatings, sheathing in cables and injection moulding applications.LDPE can be used in wire and cable (Source: Borealis)

 

LDPE is the oldest and most mature of the polyethylenes with past global growth in consumption only around 2%/year. Most of this growth has been in Asia and driven by China. A number of LDPE projects are underway or have been completed in Europe, the Middle East and China.

 

Two basic processes are available for the production of low density polyethylene: stirred autoclave or tubular routes. The tubular reactor has been gaining preference over the autoclave route due to its higher ethylene conversion rates.

 

Low density polyethylene is a thermosetting white solid which has highly branched and widely spaced molecular chains. LDPE should not be exposed to flames as it gives off smoke on burning.

 

Webinar - Understanding Polyethylene Margins

To understand the margin and cost curve analysis behind the Asian polyethylene market and the methodology of our data collection, click on the link to view and listen to the archived version of the presentation.

 

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Polyethylene low density Price Reports

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Polyethylene low density Uses and Outlook

Low density polyethylene (LDPE) is used mainly in film applications for both packaging and non-packaging uses. Other markets include extrusion coatings, sheathing in cables and injection moulding applications.
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Polyethylene low density Process Technologies

High pressure LDPE production was first started in the 1950s and, while this technology has been overshadowed in recent years by its LLDPE rival, processors still appreciate LDPE's good optical and processing qualities.
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Polyethylene low density Plants and Projects

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Polyethylene low density Synonyms & Abbreviations

  • Polietileno de baja densidad
  • LDPE
  • PEBD

Polyethylene low density Properties

Density at 20 oC
0.92-0.93
Hardness (Rockwell D)
41-46
Melting index (g/10 minutes)
0.2- .3.5
Molecular weight
90 000
Tensile elongation at rupture (%)
653
Tensile strength (MPa)
12.4
Vicat softening point ( oC)
93

 
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