PET Extrusion

Interested in PET extrusion? Choose us, because our 15-year experience and expertise in PET extrusion solutions can prepare anyone who wants to be involved in PET extrusion. Our solutions reflect our deep experience and ardent passion to innovate.

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About PET

PET resins are produced commercially from ethylene glycol (EG) and terephthalic acid (TPA).

No.ApplicationIntrinsic viscosity(IV)Molar mass
1Textile0.64dl/g15000-20000g/mol
2Bottle0.75-1.0dl/g24000-36000g/mol
3BOPET film0.64dl/g15000-20000g/mol
4Sheet0.7dl/g20000-25000g/mol
5Tire cord1.0-1.2dl/g36000-50000g/mol

Hydrolysis reaction

Esterification reaction is the first step in the synthesis of PET, occurs in the process of melting polycondensation, solid state polycondensation and extrusion. As an equilibrium reaction, esterification is always accompanied by a reverse reaction, that is hydrolysis.

Thermal degradation reaction

The thermal degradation happens when the temperature is higher than the melting point, which is inevitable. As the activation energy of the thermal degradation reaction is higher than that of the polycondensation reaction. The thermal degradation becomes heavier and heavier with the increase of temperature.

IV drop / Yellowish

The following conditions affect two of the most important parameters: Viscosity and Color

Special Extruder for PET Extrusion

High Torque Gearbox

Our high torque of gearbox 10.3 Nm./cm3 can process PET at lower temperatures and a lower speed less shearing, but at the same time, produce higher output.

Strong Vacuum

With vacuum level less than 0.5Kpa
Less VOC content, better color
Less IV drop ( less than 5%, about 0.04dl/g)
Energy Consumption saving of up to 40% comparing to traditional drying process

Special Force Feeding System

Higher output for low bulk density material, such as crushed cloth/yarn/fiber, BOPE film, PET sheet, bottle flakes.

Excellent Screw Design

Better molecular weight distribution.

Applications of PET Extrusion

You can certainly depend on us to develop and deliver customized machines, which can handle any imaginable thorny recycling task. USEON will help you eradicate struggles with bottle-grade PET recycling, fluffy materials, or even the most difficult plastic recycling challenges. Choose us, and together, we’ll fight for a greener tomorrow. So, what are you waiting for? Contact us today to find out the limitless opportunities with which we can help.

Table of Contents

Extruder Specification

TypeDia. (mm)Motor (kW)Output (kg/hr)
SAT6562.475~90200~300
SAT7571132~160400~600
SAT9593160~220600~900
SAT110108250~3151100~1500
SAT135130400~6301500~2500
SAT175175800~12002500~4000

Tech Features & Advantages

  • High output: 2500kg/h for each extruder
  • Pre-drying-free technology
  • High efficient vacuum system keeps IV drop minor
  • Optimized screw design avoids yellowing and over heating
  • Less residence time leads to less polymer degradation
  • Better dispersion performance leads to less percentage of additives

PET Bottle Flakes to PSF

Flow Chart: Twin Screw Extruder → Gear Pump → CF Filter → PSF

Raw material: flake/popcorn/scrap/film/fiber/sheet with the moisture less than 1.5%

PET Bottle Flakes to POY

Flow Chart: Twin Screw Extruder → Gear Pump → CF Filter → LSP → POY

Raw material: Clean bottle flakes with moisture less 1%

Flow Chart: Pelletizing Line → SSP → 2/4 Strap extrusion

Film structure: A/B/C conextrusion

Co-extrusion:
SAT75-SAT135-SAT75 With total output 2.5ton/h
SAT95-SAT175-SAT95 With total output 4.5ton/h

PET Sheet Film Production Line

USEON has helped clients worldwide launch 300 sets of Direct Extrusion for sheet/film with the advantage of saving energy, space, man power and better quality of final product.

Co-extrusion: A/B/A, thickness 0.12~1.2mm for thermoforming.
SAT75-TDD65, width 500~1200mm, output 300~600kg/h
Automatic winder for high line speed up to 50m/min.

Flow chart description:
Loader → Transit silo → Loss-in-weight feeding → Twin screw compounding → Filter → Gear pump → Distributor → T-die → Three roller calendar → Cooling stack and edge cutting → Thickness tester → Corona treatment → Silicon/anti-static coating and dryer → Protection film coating → Haul-off → Automatic winder with accumulator

PET Foam Sheet

USEON PET Micro-foam Sheet

Lower density, lower-cost solution for PET/PLA thermoforming sheets. Reduce the consumption of the raw materials for thermoforming sheet.

Multi-layer structure: physically foamed central layer and solid both side skin layers.
Density: 0.8-1.1g/cm3.
Thickness ranged: 0.5-1.5mm.

The production cost 5-30% lower compared to the whole solid sheet.

Better heat insulation performance, perfectly for the hot containers.

Density range: 80-350kg/m3
Dimension: Width: 600-1220mm
Thickness: 5-60mm

Features:

  • Eco-friendly blowing agent
  • Variety of raw material sources (bottle flakes)
  • Reaction, mixing and foam extrusion in one step
  • Easy forming
  • Superior mechanical properties
  • Recyclable
  • High-temperature resistance

Application:

  • Road transportation
  • Rail transportation
  • Aviation
  • Wind power
PET Bottle Flakes Pelletizing Line

USEON has helped clients worldwide launch more than 130 PET pelletizing lines.

By discovering more of USEON’s innovative solutions, you can recycle PET and maintain the same material quality as virgin PET.

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