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Melt Flow Index is a measure of the ease of flow of the melt of a thermoplastic polymer. It is defined as the mass of
polymer, in grams, flowing in ten minutes through a capillary of a specific diameter and length by a pressure applied
via prescribed alternative gravimetric weights for alternative prescribed temperatures.[1][2] Polymer processors usually
correlate the value of MFI with the polymer grade that they have to choose for different processes, and most often this
value is not accompanied by the units, because it is taken for granted to be g/10min. Similarly, the test load conditions
of MFI measurement is normally expressed in kilograms rather than any other units
This instrument measures the rate of extrusion of Molten resins through a die of specified length and diameter under
prescribed conditions of temperature, load, piston position.
For more info : http://tensiletestingmachineutm.com/melt_flow_index_tester.htm
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