Vinyl Plasticizers-Effect on Processing Polyvinyl Chloride in Banbury Mixer

Abstract

1 he rapid growth of plasticized vinyl compositions has necessitated the installation of additional equipment and the utilization of such equipment at the highest efficiencies. The Banbury mixer is the main compounding unit for fluxing vinyl compounds. Plasticizers are added to vinyl resins not only for the desirable properties they impart but also for improving processability. This article discusses the effect of different plasticizers, fillers, and lubricants on vinyl compounding in the Banbury mixer.Plasticizers exert a considerable effect on the fusion time of a vinyl compound. The plasticizers studied are

Plasticizers

“…Fusion is completed in an intensive mixer such as an extruder or Banbury mixer (27). Substitution for a portion of slow-fusing plasticizer, a small amount of fast-fusing plasticizer can produce shorter processing cycles, less work, higher output, or improved appearance than in unmodified formulations (28)(29)(30)(31). In plastisols a relatively stable fluid dispersion of resin and plasticizer is prepared at room temperature.…”