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Question:

What does MFI mean in PC material?

What does MFI mean in PC material?

Answer:

MFI- melt flow index, also known as the melt flow rate (MFR), it was determined at a given shear stress (with applied load) and temperature, melt flow properties of materials (measured by g/10min).
Sep 7, 2017
MI (Melt, Flow, Index, or, MFI,), Melt, Flow, Rate (MFR), the full name of the melt flow index, or the melt flow index, refers to a plastic material processing when the flow performance of the value. It is a conventional method of identifying plastic properties.
Sep 7, 2017
The measurement of MI is usually based on the standard method of ASTM D1238. It is the principle of the plastic or resin into the metal sleeve of a fixed inner diameter, and heating the plastic or resin after melting, and then give some load on the piston, the piston on the weight of the molten plastic has been squeezed out from a small hole in the charge, and calculate the weight and squeezed out of plastic. This measuring method, because of the same material, the sleeve barrel inner diameter, load, and temperature are fixed, so in addition to test MI, can also be used for the determination of density, viscosity, and melt shear rate, shear stress... etc.
Sep 7, 2017

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