What is the PP melt index instrument used for?

- May 10, 2020-

PP melt index instrument, also known as melt flow rate instrument, is a plastic extrusion device. The thermoplastic material to be tested is placed in the barrel of the instrument. At a specified temperature, the heating object is used to make the measured object reach the molten state , And extrude through the small hole of the standard die under a specified load, convert the extrudate into the melt mass flow through the standard die MFR (G / 10MIN) every 10 minutes to express or convert the extrudate The volumetric volumetric flow rate MNR (CM3 / 10MIN) of the melt passing through the standard die in less than 10 minutes, which is used to express the physical properties of the fluidity and viscosity of the test object in the molten state.