New models for rotational molding of plastics

G. Gogos, L. G. Olson, X. Liu, V. R. Pasham

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


We present a detailed theoretical model of the rotational molding process, and identify the key dimensionless groups affecting the process cycle time. This theoretical model is employed to create differential and lumped parameter numerical models, as well as a simple closed form estimate for the time required for complete powder deposition. Both numerical models give results that are in very good agreement with experimental data available in the literature. The closed form solution gives good predictions over a wide range of processing parameters. In addition, the effects of variations in the dimensionless groups on processing time are evaluated.

Original languageEnglish (US)
Pages (from-to)1387-1398
Number of pages12
JournalPolymer Engineering and Science
Issue number9
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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