Mechanical
Rheological
Melt index
Melt viscosity
Solution viscosity
Oscillation shearing
Heat resistance
Thermal analysis
Physical
Electrical
Combustion (Fire)
Thermal aging
Weathering
Optical
Chemical resistance
Shrinkage
Melt viscosity
Melt shear viscosity


Standards:
DIN 54811
ISO 11443
or corresponding standards

Melt viscosity
Flow behavior of plastic melts in a capillary rheometer

From the test pressure or volume output (depending on type of equipment) determined during the extrusion of a plastic melt through a capillary with defined measurements, the shear viscosity [Pas] and shear speed [1/s] are calculated and presented as a shear viscosity function. The shear viscosity function serves as a basis for assessing the processability of a molding compound. The flow properties of a melt or compound depend in turn on their molecular structure.