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Analyzing the dynamic chemorheology of curing resins: Extraction of model parameters associated with cure advancement
Author(s) -
Love B. J.,
PiguetRuinet F.
Publication year - 2007
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/app.26692
Subject(s) - curing (chemistry) , isothermal process , viscosity , exponential function , materials science , photopolymer , thermodynamics , exponent , polymer science , polymer chemistry , composite material , polymer , polymerization , mathematics , physics , mathematical analysis , linguistics , philosophy
Abstract The assessment of transient changes in reactive fluids has been described as chemorheology. While several individual chemorheological studies are published, few have investigated unifying principles that may help in identifying protocols for predictive modeling. We have extracted datasets from other published manuscripts on reactive resin curing, and have observed a range of exponential growth in viscosity with these reactive systems. We have found that regardless of the initial viscosity, the dynamic viscosity rise in many of these resins advances with a similar exponential rise, with the exponent varying between 0.02 and 1.5 min −1 Isothermal photopolymerization yielded more accurate viscosity models than corresponding crosslinked resins with a widely varying heating schedule. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007