Typical Formulation Ingredients
Phase
Ingredient
Parts by weight
A
Epoxy resin dispersion (Epi-Rez 3522-W-60, Momentive)
A
Dicyandiamide (SKW Corporation)
A
2-Methyl imidazole (BASF)
Typical Properties
Gel time at 171°C, seconds
Resulting Properties
Epi-Rez 3522-W-60, Epi-Rez 5520-W-60, and Epi-Rez 5003-W-55 are nonionic, completely aqueous dispersions of epoxy resins. Epi-Rez WD-510 is a liquid, bisphenol A epoxy resin specifically designed for water dilution. Dicyandiamide can be used as a curing agent with these epoxy resins to provide extended pot life formulations which cure at elevated temperatures (for example, 300°-350°F) to give highly crosslinked systems suitable for service at high temperature. Suggested uses include: prepregs and composites, nonwoven binders, adhesives, and electrical insulating materials.
(Source: Momentive)