Interferometric study of epoxy resin gelation
The transition of epoxy resins from a mobile liquid to a rubbery gel is a complex process depending on chemical reaction kinetics and both heat and mass transfer. The purpose of this study is to determine the locus of initial gelation in an epoxy resin, and the course of gelatin through both neat resins and glass fiber/epxoy resin composites. This was accomplished by monitoring the local changes in refractive index in transparent epoxy castings using laser interferometry, supplemented by temperature profiles obtained from thermocouple arrays. These experiments were carried out on pure DGEBA epoxy (DOW DER-332) cured with a variety of primary amine, secondary amine, and anhydride curing agents.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6256509
- Report Number(s):
- CONF-8106158-1; ON: DE81030128
- Country of Publication:
- United States
- Language:
- English
Similar Records
2,5 dimethyl 2,5 hexane diamine: a promising new curing agent for epoxy resins
2,5 dimethyl 2,5 hexane diamine: a promising new curing agent for epoxy resins