Polymer PVT Testers for Plastic Analysis

The PVT-6000 Polymer PVT Tester has been specifically designed for users interested in analyzing the volume of plastics as a function of both temperature and pressure in molten and/or solid states. During the test, specific volume is achieved following the formation of the polymer through constant or stepwise pressure and temperature.

The data acquired during the test is then applied to the Moldex3D injection molding simulation to determine the accuracy and production stability of the analysis. Once the Moldex3D injection molding has been optimized, work efficiency and polymer production quality increases while simultaneously reducing the occurrence of product defects that occur during injection molding processes.

Some product defects that are greatly reduced and eliminated as a result of using the PVT-6000 include shrinkage, sink marks and warpage. In order to apply PVT measurements, a fixed amount of polymer is either heated or cooled under a prefixed temperature within the PVT cell. The PID analog output signal is used to control the cooling, which thereby significantly enhances the accuracy of temperature control in the process.

When the polymer is pressurized at a constant pressure by pistons, the dimensional change in the polymer’s volume as a result of thermal expansion or shrinkage is measured. Following these procedures, all collected PVT data, such as density and specific volume, are applied to the Moldex3D injection molding simulation.

Product Features  

  • User-friendly operation interface
  • 10 different pressures can be set up to conduct PVT tests and analysis
  • Highly accurate control of both temperature and pressure
  • 4.3 ” HMI touch screen
  • PVT data can be transferred to Moldex3D injection molding simulation to achieve high-quality molded products

Typical Diagram

Product Specifications

  • ISO 17744 standard
  • 2500 bar capacity
  • Isobaric/isothermal testing method
  • Temperature control information:
    • Ranges from room temperature to approximately 300 °C
      • Optional 400 °C range available
    • ±0.3 °C accuracy
    • 0.1 °C resolution
    • PID controller
  • 7.8 mm ± 0.005 mm barrel diameter
  • 7.76 mm piston diameter
  • 10 – 23 mm barrel testing distance
  • Airflow cooling method
  • ± 2% pressure accuracy
  • PID pressure controller
  • Force detector information:
    • Load cell method
    • 1/30,000 resolution
    • 0.25% load accuracy
  • Displacement detector information:
    • Linear encoder system method
    • 5 µm resolution
  • Accessories:
    • Cleaning rod
    • Reamer
    • Copper brush
    • Filling funnel
    • PTFE sheet (100)
  • Product dimensions: 60 x 66 x 168 cm
  • Weight: 220 kg (main unit)
  • Power: 220 V 50/60 Hz 10

Polymer PVT Testers for Plastic Analysis

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