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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

Instron – CEAST SR50, Capillary Rheometer, 50kN

Types of Test

  • Rheological property measurement
  • PVT – Pressure, Volume and Temperature properties
  • Die Swell


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


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Instron bottom April 2020
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