The two main MFI test standards are ASTM D1238 - “Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer” and ISO1133 – “Determination of the Melt Mass-Flow Rate (MFR) and ...

If the material supplier offers both MFR and MVR data, once this conversion is made, it can be noticed that the numbers are similar but usually not identical. The ratio of the two values—the MFR ...

Editor?s note: The author, Donald E. De Laney, a consultant in polymer process rheology, worked with GE for 17 years and has worked with Dynisco over the past eight years. The plastics compounding and ...

Tinius Olsen is offering a new advanced melt indexer, as well as new software for data acquisition and closed-loop control of universal testing machines that have a compatible servo system or ...