Premium
Modelling of rapidly‐mixed fast‐crosslinking exothermic polymerizations. Part I: Adiabatic temperature rise
Author(s) -
Chella R.,
Ottino J. M.
Publication year - 1983
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690290305
Subject(s) - exothermic reaction , mixing (physics) , adiabatic process , lamellar structure , polymerization , thermodynamics , mass transfer , diffusion , chemistry , activation energy , materials science , polymer , physics , organic chemistry , crystallography , quantum mechanics
A lamellar mixing approach has been applied to the modelling of an imperfectly mixed, fast, crosslinking, exothermic polymerization. The model involves the solution of coupled nonlinear partial differential equations representing mass and energy transfer in locally structured lamellar domains with diffusion and reaction occurring between initially segregated lamellae. Several seemingly unusual features of experimental results can be explained qualitatively in terms of this simplified model. The phenomena investigated include: effect of variations in mixing, catalyst concentration (intrinsic reaction rate), and initial temperature for equal mixing conditions.