Rheokinematics for Product Development – Formulation Screening in Rotational Rheometers

M.s.c.a. Brito, J. Matos, Marina V.l. Torres, C.p. Fonte, M.m. Dias, J.c.b. Lopes, R.j. Santos

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Abstract

Product formulations for industrial processes are typically developed at laboratory scale. However, the mixing conditions are not easily mimicked in the laboratory. A rotational device is proposed in this study as a fast laboratory-scale formulation development, which enables mimicking the mixing conditions in the industrial process. The geometrical configurations of the rotational device are from rheometry devices (plate-plate and cone-plate). The main advantages of this method are the small amounts of raw materials and shorter testing times. This methodology is applied to an industrial case study, the reaction injection molding (RIM) process. The mixing length scales evolution in the rotational rheometer were matched to those in RIM machines. The main novelty of this study is the introduction of a protocol that bridges the processing conditions at laboratory using small amounts of raw materials to high throughput continuous flow reactors.

Original languageEnglish
Article numbere17597
JournalAIChE Journal
Volume68
Issue number4
Early online date10 Jan 2022
DOIs
Publication statusPublished - Apr 2022

Keywords

  • computational fluid dynamics
  • mixing
  • product development
  • reactive polymerization
  • rheometric flow

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