LDPE (Low Density Polyethylene)

 
Recycling Symbol LDPE

Polyethylene is a thermoplastic polymer belonging to the Polyolefins family. It is obtained from the polymerization of ethylene and is one of the most used and processed polymers, constituting the largest proportion of polymers worldwide. Its technical characteristics strongly depend on its molecular weight, crystallinity rate and molecular weight distribution. Polyethylene is used in different densities: low (LDPE), medium (MDPE) and high (HDPE).

Chemical Formula LDPE: (C2H4)n
CAS number PE: 9002-88-4
PE (IUPAC) Chemical Number: low-density polyethylene
Recycling Code PE: numero 4
Recycling Symbol PE: simbolo riciclo LDPE

LDPE commercial names and producers:

 

  • Borpure (Borealis)
  • Stamylan (Sabic)
  • Alcudia (Repsol)
  • Attane (DOW)
  • Borealis PE (Borealis)
  • Borstar (Borealis)
  • Clearflex (Versalis)
  • Eltex (Ineos Polyolefines)
  • Eraclene (Versalis)
  • Escorene (Exxon Mobil)
  • Alastian (LyondellBasell)
  • Lucalen (LyondellBasell)
  • Lupolen (LyondellBasell)
  • Petrothene (LyondellBasell)
  • Purell (LyondellBasell)
  • SURPASS (NovaChem)
  • Braskem PE (Braskem)
  • Total PE (Total Petrolchemicals)

LDPE Italian distributors:

 

  • BIGLER (Total LDPE)
  • Schulman (Network polymers, Accuguard, Accucomp)
  • Mega Polymers (LUPOLEN, STAMYLAN)
  • PolyOne (AT LDPE, DOW Endurance, DOW LDPE, DuPont 20 series, Marlex, Maxxam, Westlake)
  • ALBIS (Lucalen, Lupolen, Malen, Purell)
  • Interpolimeri (ExxonMobil LDPE)
  • Biesterfield (Eltex, Novex)
  • Nexeo (Bormed, Braskem, Bynel, DuPont 20 series, HIVAL, Microthene, NOVAPOL, Petrothene, Purell, SABIC LDPE)
  • RESINEX (DOW Endurance, DOW LDPE, Ravalene)
  • Ultrapolymers (LUVOCOM, Lucalen, Lupolen, Purell, Ravalene)
  • TER Plastics (Riblene)

Main compounds LDPE:

 

  • LDPE with antistatic agent
  • LDPE with UV stabilizers
 

Chemical and Physical properties

LDPE is a semi-crystalline material. Its level of crystallinity is limited due to the decay of the chains. It is a resistant material, but has moderate elasticity and tends to permanently deform. It is however characterized by a good level of resilience and chemical resistance. The material rolls easily due to the decay of long chains.

The materials on the market have densities between 0.91 and 0.94 g / cm³. LDPE is permeable to gases and vapors. It is resistant to many solvents at room temperature, but aromatic and chlorinated hydrocarbons cause it to swell. It has an excellent impermeability to water and for this reason no drying treatments are necessary.

LDPE standard density: 0,92 g/cm3 (ISO 1183)
LDPE melting point Tm: 110 °C
LDPE glass transition temperature Tg: -130 °C

 

Density differences between the main types of PE::

LDPE: density range from 0,91 g/cm to 0,925 g/cm
MDPE: density range from 0,926 g/cm to 0,94 g/cm
HDPE : density range from 0,94 g/cm to 0,965 g/cm

 

LDPE market applications

 

  • Lids
  • Bowls
  • Containers
  • Barrier film for foods
  • Coatings
  • Construction
  • Disposable products

LDPE transformation technologies

 

  • Injection molding
  • Blow molding
  • Extrusion
 

History and Trivia on Polyethelene:

Polyethylene or Polythene is one of the oldest polymers and still the most used today. Discovered almost accidentally by E.W. Fawcett and R. O. Gibson, its first production came about on September 1, 1939, on the same day that World War II began. Initially it was only considered to be a material with excellent insulating properties against electricity. During the Second World War it was used in large quantities in radar-related applications. At the end of the war it was in danger of disappearing until its properties were discovered to be much more versatile than previously thought. Fundamental in the world of plastic was the discovery by Karl Ziegler of the complete dimerization reaction of ethylene in butylene. Immediately afterwards he discovered the way to obtain high linear ethylene polymers under low temperature and pressure conditions. These discoveries marked the beginning of the revolution in the world of polymers.

 

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Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

PE-LD Regranulat 400-S
lenticular granule/pellet Natural / Neutral 22000 Kg bigbag 1.000-1.100 kg 0.87 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

PE-LD Regranulat 400-S
lenticular granule/pellet Dark grey 22000 Kg bigbag 1.000-1.100 kg 0.72 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

3016
lenticular granule/pellet Amber 25000 Kg bigbag 1.000-1.100 kg 0.91 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

3009 AMBRA
lenticular granule/pellet Amber 25000 Kg bigbag 1.000-1.100 kg 0.89 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

3009 NERO
lenticular granule/pellet Black 25000 Kg bigbag 1.000-1.100 kg 0.73 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

3003 NERO
granule/pellet Black 25000 Kg bigbag 1.000-1.100 kg 0.65 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

LDPE 2119
granule/pellet Natural / Neutral 44000 Kg bags on pallet 1.20 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

BRALEN FA03-01
granule/pellet Natural / Neutral 23375 Kg bags on pallet 1.28 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

LDPE RIGENERATO VERDE
lenticular granule/pellet Green 4007 Kg octabin 0.95 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

LD PE RIGENERATO NEUTRO
lenticular granule/pellet Transparent 8890 Kg bags on pallet 1.12 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

ROCALEN RPE 155
lenticular granule/pellet Natural / Neutral 22000 Kg bigbag 1.000-1.100 kg 0.84 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

ROCALEN RPE 200
granule/pellet Miscellaneous 22000 Kg bigbag 1.000-1.100 kg 0.68 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

EXXONMOBIL LLDPE LL 6101 SERIES
granule/pellet Natural / Neutral 1000 Kg bags on pallet 1.25 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

EXXONMOBIL LLDPE LL 6101 SERIES
granule/pellet Natural / Neutral 25000 Kg bags on pallet 1.18 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

EXXONMOBIL LLDPE LL 1001AV
granule/pellet Natural / Neutral 1000 Kg bags on pallet 1.17 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

EXXONMOBIL LLDPE LL 1001AV
granule/pellet Natural / Neutral 25000 Kg bags on pallet 1.10 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

EXXONMOBIL LDPE LD 100 SERIES
granule/pellet Natural / Neutral 1000 Kg bags on pallet 1.22 €/Kg

Polymer

LDPE low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

EXXONMOBIL LDPE LD 100 SERIES
granule/pellet Natural / Neutral 25000 Kg bags on pallet 1.15 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

LDPE RIGENERATO GIALLO
granule/pellet Yellow 250000 Kg bigbag 1.000-1.100 kg 0.84 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

LDPE FILM 200
granule/pellet Black 24000 Kg jumbo bag 1.400-1500kg 0.45 €/Kg

Polymer

LDPE low density polyethylene

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

TIPOLEN MF 243-51 TST
granule/pellet Natural / Neutral 1300 Kg bags on pallet 1.33 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

TRASLUCIDO B
lenticular granule/pellet transparent bluish 25000 Kg bigbag 1.000-1.100 kg 0.84 €/Kg

Polymer

LDPE low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

LDPE NERO/FLOR
lenticular granule/pellet Miscellaneous 25000 Kg bigbag 1.000-1.100 kg 0.70 €/Kg

Compound

(PE-LD) low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

-
granule/pellet Dark grey 1500 Kg jumbo bag 1.400-1500kg 0.61 €/Kg

Compound

(PE-LD) low density polyethylene

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

BRALEN RB 03-23
regrinded Natural / Neutral 3712 Kg octabin 0.90 €/Kg

Compound

(PE-LD) low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

Lupolen 2420 D
granule/pellet Natural / Neutral 700000 Kg bags on pallet 1.04 €/Kg

Compound

(PE-LD) low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

ExxonMobil LDPE LD 600BA
granule/pellet Natural / Neutral 1000 Kg bags on pallet 1.22 €/Kg

Compound

(PE-LD) low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

ExxonMobil LDPE LD 600BA
granule/pellet Natural / Neutral 25000 Kg bags on pallet 1.15 €/Kg

Compound

(PE-LD) low density polyethylene

First choice - virgin QUALITY-PRIME QUALITY-PRIME

Ipethene 830
granule/pellet Natural / Neutral 10000 Kg bigbag 1.000-1.100 kg 1.20 €/Kg

Compound

(PE-LD) low density polyethylene

Off specs QUALITY-PRIME QUALITY-PRIME

ExxonMobil LDPE LD 600BA
granule/pellet Natural / Neutral 43075 Kg bigbag 1.000-1.100 kg 0.92 €/Kg

Compound

(PE-LD) low density polyethylene

Off specs QUALITY-PRIME QUALITY-PRIME

ExxonMobil LDPE LD 600BA
granule/pellet Natural / Neutral 73950 Kg bigbag 1.000-1.100 kg 0.92 €/Kg

Compound

(PE-LD) low density polyethylene

Off specs QUALITY-PRIME QUALITY-PRIME

ExxonMobil LDPE LD 600BA
granule/pellet Natural / Neutral 92475 Kg bigbag 1.000-1.100 kg 0.92 €/Kg
 

Polymer

LDPE low density polyethylene

PE-LD Regranulat 400-S

22000 Kg 0.87 €/Kg

Polymer

LDPE low density polyethylene

PE-LD Regranulat 400-S

22000 Kg 0.72 €/Kg

Polymer

LDPE low density polyethylene

3016

25000 Kg 0.91 €/Kg

Polymer

LDPE low density polyethylene

3009 AMBRA

25000 Kg 0.89 €/Kg

Polymer

LDPE low density polyethylene

3009 NERO

25000 Kg 0.73 €/Kg

Polymer

LDPE low density polyethylene

3003 NERO

25000 Kg 0.65 €/Kg

Polymer

LDPE low density polyethylene

LDPE 2119

44000 Kg 1.20 €/Kg

Polymer

LDPE low density polyethylene

BRALEN FA03-01

23375 Kg 1.28 €/Kg

Polymer

LDPE low density polyethylene

LDPE RIGENERATO VERDE

4007 Kg 0.95 €/Kg

Polymer

LDPE low density polyethylene

LD PE RIGENERATO NEUTRO

8890 Kg 1.12 €/Kg

Polymer

LDPE low density polyethylene

ROCALEN RPE 155

22000 Kg 0.84 €/Kg

Polymer

LDPE low density polyethylene

ROCALEN RPE 200

22000 Kg 0.68 €/Kg

Polymer

LDPE low density polyethylene

EXXONMOBIL LLDPE LL 6101 SERIES

1000 Kg 1.25 €/Kg

Polymer

LDPE low density polyethylene

EXXONMOBIL LLDPE LL 6101 SERIES

25000 Kg 1.18 €/Kg

Polymer

LDPE low density polyethylene

EXXONMOBIL LLDPE LL 1001AV

1000 Kg 1.17 €/Kg

Polymer

LDPE low density polyethylene

EXXONMOBIL LLDPE LL 1001AV

25000 Kg 1.10 €/Kg

Polymer

LDPE low density polyethylene

EXXONMOBIL LDPE LD 100 SERIES

1000 Kg 1.22 €/Kg

Polymer

LDPE low density polyethylene

EXXONMOBIL LDPE LD 100 SERIES

25000 Kg 1.15 €/Kg

Polymer

LDPE low density polyethylene

LDPE RIGENERATO GIALLO

250000 Kg 0.84 €/Kg

Polymer

LDPE low density polyethylene

LDPE FILM 200

24000 Kg 0.45 €/Kg

Polymer

LDPE low density polyethylene

TIPOLEN MF 243-51 TST

1300 Kg 1.33 €/Kg

Polymer

LDPE low density polyethylene

TRASLUCIDO B

25000 Kg 0.84 €/Kg

Polymer

LDPE low density polyethylene

LDPE NERO/FLOR

25000 Kg 0.70 €/Kg

Compound

(PE-LD) low density polyethylene

1500 Kg 0.61 €/Kg

Compound

(PE-LD) low density polyethylene

BRALEN RB 03-23

3712 Kg 0.90 €/Kg

Compound

(PE-LD) low density polyethylene

Lupolen 2420 D

700000 Kg 1.04 €/Kg

Compound

(PE-LD) low density polyethylene

ExxonMobil LDPE LD 600BA

1000 Kg 1.22 €/Kg

Compound

(PE-LD) low density polyethylene

ExxonMobil LDPE LD 600BA

25000 Kg 1.15 €/Kg

Compound

(PE-LD) low density polyethylene

Ipethene 830

10000 Kg 1.20 €/Kg

Compound

(PE-LD) low density polyethylene

ExxonMobil LDPE LD 600BA

43075 Kg 0.92 €/Kg

Compound

(PE-LD) low density polyethylene

ExxonMobil LDPE LD 600BA

73950 Kg 0.92 €/Kg

Compound

(PE-LD) low density polyethylene

ExxonMobil LDPE LD 600BA

92475 Kg 0.92 €/Kg