Melt Mass-Flow Rate dialog

This dialog allows you to enter information relating to the viscosity effect of the selected thermoplastic material.

MFR represents the viscosity effect of plastic materials. It is an industry standard that can be thought of as a measure of how easily the melt flows. Higher values indicate that the melt flows more easily. MFR is an ISO standard. It is identical to the ASTM standard, MFI (melt flow index).

MFR measurement is similar to capillary viscosity measurement. The material is first heated in a barrel. A specified dead weight is put at the top of the piston that drives the melt through a capillary die at the end of the barrel. MFR is the amount of material that is pushed through the die in a given time at a given temperature.

Dialog Components

• Temperature is the temperature that was used to melt the material for the MFR measurement.
• Load is the weight that was used to push the material for the MFR measurement.
• Measured MFR is the melt mass-flow rate of the material. It is measured in grms per 10 minutes (g/10 min), which represents the amount of weight going through the die in 10 minutes.