Abstract
Differential Scanning Calorimetry(DSC), Torsional Braid Analysis (TBA), and Fourier Transform Infrared Spectroscopy (FT‐IR) were used to study the cure characteristics of an epoxy system that utilized a sterically hindered amine curing agent. The apparent activation energy was found to be 13.3 kCal./Mol. by DSC and 12.8 kCal./Mol. by FT‐IR. Resin volatility hindered useful application of conventional TBA techniques. The resin was found to react to a partially cured (52%) state at room temperature and then vitrify. Samples stored for a two‐month period showed no advance in cure state. Subsequent application of heat caused resin devitrification and advance to a more fully cured state. The isothermal curing behavior was studied in a temperature range from 100° to 150°C.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 821-825 |
| Number of pages | 5 |
| Journal | Polymer Engineering & Science |
| Volume | 22 |
| Issue number | 13 |
| DOIs | |
| State | Published - Sep 1982 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Polymers and Plastics
- Materials Chemistry
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