B. tion 1 e shows viscosity versus shear rate plots for a polyethylene melt, at two temperatures. Determine the consistency index, m and the power-law constant, n at both temperatures. Calculate the temperature sensitivity factor, b. A customer would like to know what is the value of the Melt Flow Index (MFI) of this material. You know that MFI for polyethylenes is measured at a temperature of 190C and that a typical plastometer (melt flow indexer) consists essentially of a die with dimensions D=2.095 mm and L=8 mm. By using the data, you obtained from part (a) can you estimate the MFI of your polyethylene without doing the actual experiment? Note that for the standard weight used in the experiment, the pressure 1