Real-time cure monitoring of an epoxy/polyamidoamine system with unilateral magnetic resonance
✍ Scribed by Gabriel LaPlante; Juan C. García-Naranjo; Bruce J. Balcom
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 872 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0963-8695
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✦ Synopsis
The cure of an epoxy resin/polyamidoamine hardener system was followed in real-time by magnetic resonance (MR) with a purpose-built portable probe that was designed with a magnet array and a radiofrequency coil geometry that maximize its sensitivity. The MR results demonstrated that the effects of cross-linking during the cure are manifest in changes in the experimental signal amplitude and decay time constant. The results also showed that, with a proper MR spin echo technique, it is possible to acquire knowledge about the evolution of the epoxy cross-linking process in a single scan measurement which takes less than one second.