Devolatilization of filled polymeric materials .1. Batch study

A study of batch devolatilization of filled polymers has been carried out as a part of systematic program to investigate the onset and mechanisms of devolatilization of filled polymeric materials. The effects of the solid fill percentage, vacuum level, initial volatile concentration and entrained air on the foam growth, bubble structure and devolatilization efficiency have been studied for a Newtonian matrix in a series of batch experiments. The foam growth and devolatilization efficiency are found to be strongly dependent on the solid fill level and applied vacuum.