Modeling of chemorheology of thermoset cure by modified WLF equation

Jovan Mijovic, Chee Hung Lee

Research output: Contribution to journalArticle

Abstract

An analysis of chemorheology of cure of a formulation composed of diglycidyl ether of bisphenol‐A (DGEBA) type epoxy resin and a mixture of aromatic amines was performed. A series of kinetic and rheological tests were run, and the experimentally obtained results were checked against the proposed model. A modified form of the classical Williams–Landel–Ferry (WLF) equation was used to model the chemorheology of the formulation. To arrive at the appropriate form of the modified WLF equation, expressions were developed for (i) the cure kinetics, (ii) the glass transition temperature as a function of the degree of cure, and (iii) the changes in parameters C1 and C2 as a function of temperature. By using these correlations in conjunction with the WLF equation, good agreement between predicted and experimental findings was observed.

Original languageEnglish (US)
Pages (from-to)889-900
Number of pages12
JournalJournal of Applied Polymer Science
Volume37
Issue number4
DOIs
StatePublished - 1989

Fingerprint

Thermosets
Epoxy Resins
Kinetics
Epoxy resins
Ether
Amines
Ethers
Temperature
Glass transition temperature

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Modeling of chemorheology of thermoset cure by modified WLF equation. / Mijovic, Jovan; Lee, Chee Hung.

In: Journal of Applied Polymer Science, Vol. 37, No. 4, 1989, p. 889-900.

Research output: Contribution to journalArticle

@article{7a61b8f588a24dc2a9992d96c563a8c5,
title = "Modeling of chemorheology of thermoset cure by modified WLF equation",
abstract = "An analysis of chemorheology of cure of a formulation composed of diglycidyl ether of bisphenol‐A (DGEBA) type epoxy resin and a mixture of aromatic amines was performed. A series of kinetic and rheological tests were run, and the experimentally obtained results were checked against the proposed model. A modified form of the classical Williams–Landel–Ferry (WLF) equation was used to model the chemorheology of the formulation. To arrive at the appropriate form of the modified WLF equation, expressions were developed for (i) the cure kinetics, (ii) the glass transition temperature as a function of the degree of cure, and (iii) the changes in parameters C1 and C2 as a function of temperature. By using these correlations in conjunction with the WLF equation, good agreement between predicted and experimental findings was observed.",
author = "Jovan Mijovic and Lee, {Chee Hung}",
year = "1989",
doi = "10.1002/app.1989.070370404",
language = "English (US)",
volume = "37",
pages = "889--900",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "4",

}

TY - JOUR

T1 - Modeling of chemorheology of thermoset cure by modified WLF equation

AU - Mijovic, Jovan

AU - Lee, Chee Hung

PY - 1989

Y1 - 1989

N2 - An analysis of chemorheology of cure of a formulation composed of diglycidyl ether of bisphenol‐A (DGEBA) type epoxy resin and a mixture of aromatic amines was performed. A series of kinetic and rheological tests were run, and the experimentally obtained results were checked against the proposed model. A modified form of the classical Williams–Landel–Ferry (WLF) equation was used to model the chemorheology of the formulation. To arrive at the appropriate form of the modified WLF equation, expressions were developed for (i) the cure kinetics, (ii) the glass transition temperature as a function of the degree of cure, and (iii) the changes in parameters C1 and C2 as a function of temperature. By using these correlations in conjunction with the WLF equation, good agreement between predicted and experimental findings was observed.

AB - An analysis of chemorheology of cure of a formulation composed of diglycidyl ether of bisphenol‐A (DGEBA) type epoxy resin and a mixture of aromatic amines was performed. A series of kinetic and rheological tests were run, and the experimentally obtained results were checked against the proposed model. A modified form of the classical Williams–Landel–Ferry (WLF) equation was used to model the chemorheology of the formulation. To arrive at the appropriate form of the modified WLF equation, expressions were developed for (i) the cure kinetics, (ii) the glass transition temperature as a function of the degree of cure, and (iii) the changes in parameters C1 and C2 as a function of temperature. By using these correlations in conjunction with the WLF equation, good agreement between predicted and experimental findings was observed.

UR - http://www.scopus.com/inward/record.url?scp=84985557516&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84985557516&partnerID=8YFLogxK

U2 - 10.1002/app.1989.070370404

DO - 10.1002/app.1989.070370404

M3 - Article

VL - 37

SP - 889

EP - 900

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 4

ER -