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Optimization of single‐zone drying of polymer solution coatings using mathematical modeling
Author(s) -
Price Peter E.,
Cairncross Richard A.
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20001003)78:1<149::aid-app190>3.0.co;2-y
Subject(s) - coating , materials science , solvent , heat transfer , polymer , residual , boiling , boiling point , heat transfer coefficient , substrate (aquarium) , mass transfer , thermodynamics , composite material , chemical engineering , process engineering , chemistry , mathematics , chromatography , organic chemistry , algorithm , engineering , physics , oceanography , geology
Optimal conditions for drying polymer–solvent coatings result from a trade‐off between minimizing the residual solvent level and creating defects. This article describes an application of automated constrained optimization with a detailed mathematical drying model to find the optimal drying conditions for a prototypical coating in a single‐zone oven. The optimization process seeks oven conditions that minimize the residual solvent level for a fixed oven residence time without boiling the solvent within the coating. The optimal oven conditions include the air temperature and coating‐side and substrate‐side heat‐transfer coefficients. The conditions are constrained to physically reasonable values. According to our results, the optimal coating‐side heat‐transfer coefficient is always equal to or greater than the optimal substrate‐side heat‐transfer coefficient. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 149–165, 2000