Main Product
Polyethylene
Segment
Chemicals
Main-Family
Polymers
Sub-Family
Polyolefins
Physical State

Solid

Sub-Product
Low Density Polyethylene
Abbreviation
LDPE
Description

Low-Density Polyethylene is a thermoplastic made with high-pressure non-catalytic process from the monomer ethylene with a density range of 917–930 kg/m3.

The free-radical polymerization process results in a highly branched molecular structure, in its turn responsible for the low density of the product. This branching reduces intermolecular forces, making LDPE less crystalline and more flexible compared to other polyethylene types like HDPE.

LDPE has SPI recycling code nr. 4.

Identifiers

No Identifiers defined

Chemical Data

Chemical Formula

(CH2)n

Melting Point (°C)
120
Sulfur Content (wt%)
0
Specific Gravity
0.92
Properties

Default
Status
A
System Info

Update by
UserPic  Kokel, Nicolas
Updated
2/9/2025 5:14 PM
Added by
UserPic  Braun (Sysadmin), Uwe
Added
2/17/2021 4:11 PM
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https://www.britannica.com/science/polyethylene#ref1049314 The branched form of Polyethylene, known as Low-Density Polyethylene (LDPE).
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