Abstract
In our previous work, we showed that the structural recovery responses of an epoxy after relative humidity (RH)-jumps through the glass concentration have similar phenomenology to, but different kinetics from, those obtained by temperature (T)-jumps. In this article, we report results from physical aging experiments of the same epoxy after RH-jumps. The results show that time-RH superposition and time-aging time superposition can be used to describe the viscoelastic responses in RH-jump experiments. The similarities and differences between RH-jump and T-jump conditions are also presented. In addition, the difficulties in modeling the combined effects of temperature and relative humidity changes that result from these differences are discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2107-2121 |
| Number of pages | 15 |
| Journal | Journal of Polymer Science, Part B: Polymer Physics |
| Volume | 42 |
| Issue number | 11 SPEC. ISS. |
| DOIs | |
| State | Published - Jun 1 2004 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Polymers and Plastics
- Materials Chemistry
Keywords
- Epoxy
- Glass
- Glass transition
- Humidity
- Physical aging
- Plasticizer
- Polymer
- Sorption
- Structural recovery