REPLICATION OF THE MIXING OF PRODUCTION SIZE TWIN SCREW COMPOUNDING EXTRUDERS WITH THE NEW 10-100g MINI-MIXER

摘要

This work relates to a new laboratory mixing apparatus capable of mixing additives into molten plastics and other viscous fluids using small (20g) quantities of materials and which replicates the mixing of production size continuous twin screw compounding extruders. The apparatus achieves both good dispersive and distributive mixing by incorporating two sets of co-rotating mixing elements of the types and arrangements commonly used in co-rotating twin screw compounding extruders but combined with a separate rotating screw mounted tangentially to the mixing elements, which aids both distributive mixing and also discharges the mixing material, hence obviating the need for manual removal.