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Problem 1 (20 Marks) Melt flow index (MFI) is often used as a measure of the viscosity of polyolefins such as polyethylene. It is measured

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Problem 1 (20 Marks) Melt flow index (MFI) is often used as a measure of the viscosity of polyolefins such as polyethylene. It is measured as the number of grams of polymer extruded in 10 min from a cylindrical die of diameter 2.0955 mm and length 8.000 mm under a weight of 2.16 kg and plunger diameter of 9.5504 mm at a prescribed temperature (ASTM D-1238). a) Plot apparent viscosity for 0.1

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