Table 1. Mixing Ratios of GL400 and PEGDGE and the Visual Observation of the Nature of the Uncured and Cured GL-Epoxy Resin.
| GL400: PEGDGE (w/w) | GL400 content of the GL-epoxy resin (wt %) | appearance of the uncured GL-epoxy resin (at 25 °C) | appearance of the cured GL-epoxy resin (at 25 °C) |
|---|---|---|---|
| 1.0:1.4 | 41.2 | viscous liquid | insufficient curing |
| 1.0:1.2 | 45.4 | viscous liquid | insufficient curing |
| 1.0:1.0 | 50.0 | viscous liquid | fragile flexible resin |
| 1.0:0.8 | 55.5 | viscous liquid | fragile flexible resin |
| 1.0:0.7 | 58.8 | semisolid | elastomer resin |
| 1.0:0.6 | 62.5 | semisolid | elastomer resin |
| 1.0:0.4 | 71.4 | solid | firm flexible resin |
| 1.0:0.2 | 83.3 | a |
a
It could not be uniformly mixed because of the high viscosity of the mixture.