PET (Polyethylene terephthalate)

 

Polyethylene terephthalate also known as PET or PETE is a thermoplastic polymer that belongs to the polyester family. It is formed from terephthalic acid and ethyl glycol via the poly-condensation reaction of monomers. PET (polyethylene terephthalate) has excellent chemical resistance and barrier properties, good solidity, rigidity, wear and abrasion resistance. At high temperatures PET is very sensitive to moisture.
Its crystallinity is enhanced by the addition of nucleating agents and crystal growth accelerators. Crystalline PET (40-50% crystallinity) has excellent mechanical properties and a high heat deformation temperature (comparable to PA6 and PBT), modulus and brilliance.
For this reason it is used in the automotive and engineering polymers sector.
Using low mold temperatures, with PET it is possible to obtain transparent moldings without fillers.
PET is the most widely used polymer in the bottling industry due to its transparency combined with its mechanical and gas barrier properties.

Chemical formula PET: (C10H8O4)n
CAS Number PET: 25038-59-9
Chemical Name PET (IUPAC): Poly(ethylene terephthalate)
Recycling Code PET: number 1
Recycling Symbol PET: simbolo riciclo PET

PET commercial names and producers

 

  • Arnite (DSM)
  • Crastin (DuPont)
  • Eastapak (Eastman)
  • Impet (Celanese)
  • Lighter (Equipolymers)
  • Ramapet (Indorama Ventures)
  • NeoPet (Neogroup)
  • Papet (Lotte Chemical)
  • Skygreen (SK chemicals)
  • CR (Novapet)
  • PETRA (BASF)
  • Kebater (Barlog)
  • Kopet (Kolon)
  • ParaStar (Eastman)
  • Polyclear (Invista)
  • Rynite (DuPont)
  • Tecopet (Eurotec)
  • Tritan (Eastar)
  • Valox (Sabic)

PET Italian distributors

 

  • BIGLER (Polyclear)
  • XIFA (Xylex)
  • Schulman (Schuladur, Matrixx, Accucomp)
  • Mega Polymers (Arnite, Durastar, Eastpak, Eastar, Impet, Petra, Rynite)
  • PolyOne (Eastar, Rynite)
  • ALBIS (Eastar, Ultradur, Makroblend, Pocan)
  • Biesterfield (Rynite)
  • Nexeo (hiFill, Petra, Pocan)
  • RESINEX (Arnite, Impet, Lighter)
  • Ultrapolymers (Luvocom, Valox, Papet, EcoGreen rPET, CumaPET)
  • TER Plastics (Arnite A)

Main compound PET

 

  • PET-GF15 (Polyethylene Terephthalate with 15% fibre glass)
  • PET-GF30 (Polyethylene Terephthalate with 30% fibre glass)
  • PET + chain extender (Polyethylene Terephthalate with chain extender agents)
  • PET + Nucleating agents (Polyethylene Terephthalate with nucleating agents)
  • PET/PBT (Blend of Polyethylene Terephthalate and Polybutylene Terephthalate)
  • PC/PET (Blend of Polyethylene Terephthalate with Polycarbonate)
 

Chemical e physical properties:

Drying is essential, before processing,. PET is very sensitive to hydrolysis. It is advised to keep the moisture content below 0.02%.
The value of the intrinsic viscosity for the PET resin is very important and analogous to the Melt Flow Index (MFI). In general, bottles made from PET have an intrinsic viscosity value IV of about 0.8 dl / g. Otherwise, food trays have a measurement of about 0.6 dl / g.
Today PET is one of the most processed and produced materials in the world. Almost all plastic bottles are produced in PET.

Today PET resin is also the most recycled plastic polymer of all. Thanks to its high mechanical and physical properties, it is in fact possible to reuse this resin to produce many other components.

PET standard density: 1,3 - 1,4 g/cm3 (ISO 1183)
PET melting point Tm: 245-265 °C
PET Glass Transition Temperature Tg: 70 - 80 °C

 

PET market applications

 

  • Food containers (Food Contact)
  • Bottles (Beverage)
  • Automotive
  • Electrical and electronic components

PP transformation technologies

 

  • Injection molding
  • Compression molding
  • Extrusion
  • Blow molding
 

History and Trivia PET:

PET was first announced in 1941 by Whinfield and Dickson.
PET fully represents the development and growth that the plastic world underwent around 1970. In the case of plastic bottles alone, in almost only 20 years, there has been a transition from a null market to 3 million tons of processed material.
Until 1960 it was considered a non-workable injection molding resin due to its high hygroscopicity and slow crystallization. However, towards the end of the 1960s, research on nucleating agents capable of resolving these difficulties allowed PET to become used for numerous applications.

 

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Compound

PET-PE MONOFILAMENT COLORED polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

J0017
granule/pellet Green 25000 Kg bigbag 1.000-1.100 kg 0.45 €/Kg

Compound

PET-PE MONOFILAMENT CLEAR polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

-
granule/pellet Transparent 25000 Kg bigbag 1.000-1.100 kg 0.58 €/Kg

Compound

PET-GF35 polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Arnite AV2 370 /B
regrinded Natural / Neutral 25000 Kg octabin 0.55 €/Kg

Compound

PET-GF30 polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Rynite 530HTE NC010
regrinded White 4000 Kg octabin 0.40 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

SKYGREEN S2008
granule/pellet Natural / Neutral 325 Kg bags on pallet 1.78 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

First choice - virgin QUALITY-PRIME QUALITY-PRIME

PETG GENIUS 72LD
cubic granule/pellet Natural / Neutral 3300 Kg bigbag 1.000-1.100 kg 1.70 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

SKYGREEN PN200
granule/pellet Transparent 850 Kg bulk bags 2.48 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

SKYGREEN ECOZEN T110G
granule/pellet Natural / Neutral 350 Kg bags on pallet 4.00 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

SKYGREEN ECOZEN T95G
granule/pellet Natural / Neutral 700 Kg bags on pallet 3.30 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

SKYGREEN ECOZEN T120G
granule/pellet Natural / Neutral 75 Kg bags on pallet 4.04 €/Kg

Polymer

PET polyethylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

KINGFA RG30 NATURALE
granule/pellet Natural / Neutral 1900 Kg bags on pallet 1.00 €/Kg

Polymer

PET polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

-
regrinded Natural / Neutral 6000 Kg bulk bags 0.45 €/Kg

Polymer

PET polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

-
regrinded Light blue 4000 Kg bulk bags 0.37 €/Kg

Polymer

PET polyethylene terephthalate

First choice - virgin QUALITY-PRIME QUALITY-PRIME

LIGHTER C93
granule/pellet Natural / Neutral 1000 Kg bigbag 1.000-1.100 kg 1.52 €/Kg

Polymer

PET polyethylene terephthalate

First choice - virgin QUALITY-PRIME QUALITY-PRIME

LIGHTER C93
granule/pellet Natural / Neutral 25000 Kg bigbag 1.000-1.100 kg 1.49 €/Kg

Polymer

PET polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

R-PET FLAKES
regrinded Light blue 23500 Kg bigbag 1.000-1.100 kg 0.82 €/Kg

Polymer

PET polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

CLEARTUF P82
regrinded Miscellaneous 4400 Kg jumbo bag 1.400-1500kg 0.25 €/Kg

Polymer

PET polyethylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

SELENIS GEO
cylindrical granule/pellet White 170 Kg bulk bags 1.50 €/Kg

Polymer

PET polyethylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

R-PET MIX
regrinded Miscellaneous 21000 Kg bigbag 1.000-1.100 kg 0.52 €/Kg

Polymer

PET polyethylene terephthalate

First choice - virgin QUALITY-PRIME QUALITY-PRIME

LUBRIONE LB3400
granule/pellet Natural / Neutral 125 Kg bags on pallet 0.50 €/Kg

Polymer

PET polyethylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

RAMAPET P184
granule/pellet Transparent 3200 Kg bigbag 1.000-1.100 kg 1.32 €/Kg
 

Compound

PET-PE MONOFILAMENT COLORED polyethylene terephthalate

J0017

25000 Kg 0.45 €/Kg

Compound

PET-PE MONOFILAMENT CLEAR polyethylene terephthalate

25000 Kg 0.58 €/Kg

Compound

PET-GF35 polyethylene terephthalate

Arnite AV2 370 /B

25000 Kg 0.55 €/Kg

Compound

PET-GF30 polyethylene terephthalate

Rynite 530HTE NC010

4000 Kg 0.40 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

SKYGREEN S2008

325 Kg 1.78 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

PETG GENIUS 72LD

3300 Kg 1.70 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

SKYGREEN PN200

850 Kg 2.48 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

SKYGREEN ECOZEN T110G

350 Kg 4.00 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

SKYGREEN ECOZEN T95G

700 Kg 3.30 €/Kg

Polymer

PET-G glycol modified polyethylene terephthalate PETG

SKYGREEN ECOZEN T120G

75 Kg 4.04 €/Kg

Polymer

PET polyethylene terephthalate

KINGFA RG30 NATURALE

1900 Kg 1.00 €/Kg

Polymer

PET polyethylene terephthalate

6000 Kg 0.45 €/Kg

Polymer

PET polyethylene terephthalate

4000 Kg 0.37 €/Kg

Polymer

PET polyethylene terephthalate

LIGHTER C93

1000 Kg 1.52 €/Kg

Polymer

PET polyethylene terephthalate

LIGHTER C93

25000 Kg 1.49 €/Kg

Polymer

PET polyethylene terephthalate

R-PET FLAKES

23500 Kg 0.82 €/Kg

Polymer

PET polyethylene terephthalate

CLEARTUF P82

4400 Kg 0.25 €/Kg

Polymer

PET polyethylene terephthalate

SELENIS GEO

170 Kg 1.50 €/Kg

Polymer

PET polyethylene terephthalate

R-PET MIX

21000 Kg 0.52 €/Kg

Polymer

PET polyethylene terephthalate

LUBRIONE LB3400

125 Kg 0.50 €/Kg

Polymer

PET polyethylene terephthalate

RAMAPET P184

3200 Kg 1.32 €/Kg