Continuous mixing of powder rubber on the twin screw extruder

For the development of a continuous mixing process on the twin screw extrud er it is important to choose the best screw elements. In this work a compar ison between the different dispersiv mixing elements is done. The paper sho ws also the influence of the other parameters on the mixing process like fe ed rate, screw speed and the pressure build up in the die. The aims pursued here developing a continuous mixing process with powder rubber are to achi eve good dispersion of the filler and a low mixing temperature in order to prevent scorching of the rubber compound.