Correlation between Dielectric and Structural Properties during Epoxy Cure.
Abstract
The relationship between the dielectric properties and the molecular structure of a commercial epoxy resin, Ciba-Geigy's MY720, is reported. The ionic conductivity sigma was measured at several temperatures by microdielectrometry and correlated with the structural parameter, the glass transition temperature Tg, through a modified Williams Landel Ferry formulation where C1 is a constant and C2 and log sigma(Tg) are assumed to be a linear functions of Tg. Keywords: Conductivity, Thermosetting polymers, Williams Landel Ferry equation, Glass transition temperature, Epoxy resins, Amine hardener, Network structure, Microdielectrometry, Differential scanning calorimetry, Loss factor.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1987
- Accession Number
- ADA190696
Entities
People
- Stephen D. Senturia
- Sue A. Bidstrup
- Wayne W. Bidstrup
Organizations
- Massachusetts Institute of Technology