Rheology

A Rheometer is used to measure the rheological properties of molten polymers when varying shear rates and temperatures. A wide number of accessories are used to determine other characteristics of the polymer.


The test system consists of:

• A heated oven with pressure transducers and either 1 or 2 barrels
• Interchangeable capillary dies for varying test types
• A rigid test frame with motor driven crosshead
• Control and data analysis software package to:
  • Input test parameters for a test method
  • Control the machine
  • Perform calculations
  • Analyse Data

Optional Items include:

• Laser detectors for die swell measurement
• Motor and pulleys for measuring the melt strength

Types of Test

• Rheological property measurement
• PVT – Pressure, Volume and Temperature properties
• Thermal Conductivity
• Die Swell
• Melt strength and material drawing capability

Typical Applications

• Flow Properties of Recycled Materials
• Evaluation of Thermal Degradation During Processing
• Data for Accurate Simulation of Injection Moulding
• Engineering Multiple-Layer Films for Optimal Performance

Life-cycle stage

• Plastic Pellets
• Raw Material
• Process Optimization

End User Type

• Product Developer
• Quality Control
• Testing Services
• Research
• Education

Applicable Standards

• ISO 11443
• ISO 16790
• ISO 17744
• ASTM D3835
• ASTM D5930
• DIN 54811