Dielectric analysis of a crosslinking epoxy resin at a high microwave frequency

Liming Zong, Shuangjie Zhou, Rensheng Sun, Leo C. Kempel, Martin C. Hawley

Research output: Contribution to journalArticle

  • 25 Citations

Abstract

The dielectric properties of a curing epoxy/amine system have been studied from 25 to 120°C at 2.45 GHz. The epoxy resins at different extents of curing exhibit a γ relaxation, which can be described by the Arrhenius rate law. The relaxation is attributed to the motions of the dipolar groups associated with the crosslinking system. A simple model is proposed to represent the temperature dependence of the dielectric properties. A complete description of the evolution of the parameters during the polymerization has been obtained. The nature of the information yielded by dielectrometry on the dynamics of the system is discussed.

LanguageEnglish (US)
Pages2871-2877
Number of pages7
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume42
Issue number15
DOIs
StatePublished - Aug 1 2004

Profile

Epoxy Resins
Microwave frequencies
epoxy resins
crosslinking
microwave frequencies
curing
Epoxy resins
Crosslinking
Dielectric properties
Curing
dielectric properties
Amines
amines
polymerization
Polymerization
temperature dependence
Temperature

Keywords

  • Crosslinking
  • Degree of polymerization
  • Dielectric properties
  • Epoxy resins
  • Microwave
  • Modeling

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Dielectric analysis of a crosslinking epoxy resin at a high microwave frequency. / Zong, Liming; Zhou, Shuangjie; Sun, Rensheng; Kempel, Leo C.; Hawley, Martin C.

In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 42, No. 15, 01.08.2004, p. 2871-2877.

Research output: Contribution to journalArticle

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