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TTT isothermal cure diagram of a dyglicidyl ether of bisphenol A/1,3‐bisaminomethylcyclohexane (DGEBA/1,3‐BAC) epoxy resin system
Author(s) -
Barral L.,
Cano J.,
López A. J.,
López J.,
Nogueira P.,
Ramírez C.
Publication year - 1996
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/(sici)1097-4628(19960829)61:9<1553::aid-app14>3.0.co;2-r
Subject(s) - epoxy , isothermal process , vitrification , bisphenol a , materials science , glass transition , diglycidyl ether , curing (chemistry) , composite material , polymer chemistry , thermodynamics , polymer , medicine , physics , andrology
The isothermal cure of an epoxy‐cycloaliphatic amine system has been studied following the evolution of both glass transition temperature and conversion. A functional relationship between T g and conversion is established. The cure reaction is satisfactorily described by a phenomenological model with parameters determined from DSC experiments. By applying the kinetic model, gelation and vitrification curves are calculated and compared with experimental times to gelation and times to vitrification determined at temperatures between 50 and 100°C. The isothermal time‐temperature‐transformation (TTT) curing diagram including iso‐ T g contours has been established. © 1996 John Wiley & Sons, Inc.