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Recycling pilot centre

Compounding pilots for facilitation of innovation and quality improvement.

Compouning and pelletization

Processing trials on Coperion ZSK26 compounding extruder.

Set up

  • Twin screw, co-rotating, intermesh
  • 10-80 kg/h
  • L/D 40
  • Rpm 120 – 1800
  • 3 + 2 feeders, one side feeder
  • String pelletizing

Added features

  • N², Ventilation (degassing)
  • Vacuum unit
  • Liquid feeding

Nordson melt filtration

  • Continuous melt filtration
  • Mesh flexibility

 

Processing trials/results 

Processing results

  • Torque
  • Pressure
  • Energy
  • Melt temperature
  • Output
  • Flow characteristics

Process parameter optimisation

  • Machine pressure, temperature and speed requirements.
  • Processability evaluation
  • Material evaluations
  • Evaluation of recycled material
  • Quality improvement
  • Tests at industrial relevant conditions
  • Raw material quality and consistency

Test volume production

  • Compounded PCW
  • Modified PCW/PCR

 

Performance testing

Polymer characterization

  • Volatile components
  • Odour
  • Head space, unknown components
  • Molecular characterization
  • Gels and polutions
  • Visual inspection

Application processing

  • Injection moulding
    • C&C, thin wall, general injection moulding
  • Film extrusion
    • Blown film, cast film, sheet
  • Bottles HIC (Household Industrial Chemicals)
  • Thermoforming
    • Appliances, packaging

Application performance tests

  • Std tests
  • End-use tests (e.g. cap hinge performance) 

 

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