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Comparison of the complex viscosity curves depending on the variation in the screw rotation speed, with a constant processing temperature and analysis temperature. (a) Processing temperature = 175 °C and analysis temperature = 175 °C; (b) processing temperature = 190 °C and analysis temperature = 175 °C; (c) processing temperature = 175 °C and analysis temperature = 190 °C; (d) processing temperature = 190 °C and analysis temperature = 190 °C.
