Recycling pilots

Compounding 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

Performance testing

Polymer characterization

• Volatile components
• Odour
• Head space, unknown components
• Molecular characterization
• Gels & 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)

Processing trials and 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