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Differential scanning calorimetry cure studies on the effect of addition of epoxy diluents of tetrafunctional epoxy resins
Author(s) -
Jagadeesh K. S.,
Kalpagam V.
Publication year - 1990
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.1990.070400716
Subject(s) - differential scanning calorimetry , epoxy , curing (chemistry) , diluent , materials science , autocatalysis , isothermal process , composite material , kinetics , order of reaction , activation energy , aniline , polymer chemistry , chemistry , nuclear chemistry , organic chemistry , thermodynamics , reaction rate constant , physics , quantum mechanics
The effect of the addition of p ‐aminophenol and aniline‐based epoxy diluents on the curing behavior of highly viscous tetraglycidyl diamino diphenyl methane resin with diamino diphenyl sulfone hardener have been investigated kinetically by differential scanning calorimetry. Dynamic scans were carried out over a temperature range 30–300°C for different resin formulations. Isothermal scans at four differnt temperatures have also been carried out for the evaluation of kinetic parameters. Heat flow measurements at different heating rates have indicated the evidence of autocatalytic behavior of curing reaction following a simple n th‐order kinetics.