Viscosity tests using a plastometer for effective process control
- ISO 11443 (Viskosität)
- ASTM D1238
- ISO 1133
- ASTM D3364
Viscosity tests using a plastometer for effective process control
Melt flow indexer mi40 visco
The add-on “visco” extends our melt index tester mi40 so that viscosity measurements according to the capillary rheometer standard ISO 11443 are possible.
Melt index testers are used as standard to determine the MFR (melt flow rate) or MVR (melt volume rate) of pellets, powders and fine granules. Until now, a capillary rheometer was required for measurements according to ISO 11443 - a method that is more complex and more demanding to operate.
Higher shear rates are achieved than with conventional MFR measurements, which enables a more realistic representation of the actual processes. This makes viscosity testing with the mi40 a practical process control - far beyond a classic melt flow index test.
Specification
CUSTOMIZED TO YOUR REQUIREMENTS
Our modular add-ons also offer an extended option for characterizing materials.
Our miCONNECT software is a browser-based platform for workstation-independent management and analysis of measurement data, which can be used without installation.
The residual moisture has a considerable influence on the measurement result for certain test materials. Therefore, it is recommended to dry test materials before a IV measurement and to determine the residual moisture.
Directly connected laboratory scale for determination of the melt density.
The measuring head is mounted below the die. The measurement can be carried out parallel to a viscosity measurement.
Multi-Load-Measurements
Both our mi40 and MI-ROBO 89.16 can perform automated multi-load measurements with only one filling of...
Melt Flow Indexer (MFR/MVR) vs. Capillary Rheometer
A Capillary Rheometer as well as a Melt Flow Indexer (Plastometer) can compare the flow behaviour of polymer plastics...
MFR-Standards: ISO 1133 and ASTM D1238
The determination of the melt flow rate (MFR) and the melt volume rate (MVR) is described in various international standards...
MFR/MVR: Common Terms
Over the years, quite a number of different terms have become established in the field of melt flow measurements, often with the same or similar meanings. This sometimes leads to misunderstandings and the whole subject area seems more complicated than it actually is...
Intrinsic Viscosity
The intrinsic viscosity (IV), also referred as intrinsic viscosity, or Staudinger index [η]...
Determination of Melt Flow Index (MFR and MVR)
The melt flow index is a standardized test method to determine the flow rate of plastics at a defined temperature and constant force. The test method...
Reproducible and Accuracy of Melt-Index-Tests
GÖTTFERT Melt Flow Testers (Plastometers) are manufactured according to the most modern electronic and mechanical standards with minimal manufacturing tolerances. The result is a testing device which delivers precise and accurate MVR and MFR test results.
Better than ISO 1133
All our melt index testers are equipped with a fast and precise temperature control...
