Structural investigation of e-beam cured epoxy resins through solid state NMR |
| |
| Authors: | Sabina Alessi Alberto Spinella Eugenio Caponetti Clelia Dispenza Giuseppe Spadaro |
| |
| Institution: | 1. Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza Av. 30, 30 059, Kraków, Poland;2. Institute of Materials Science and Engineering, ?ódz University of Technology, Stefanowskiego Str. 1/15, 90 924, ?ódz, Poland;1. Institute for Single Crystals, SSI “Institute for Single Crystals”, NAS of Ukraine, 60 Lenin Avenue, 61001 Kharkiv, Ukraine;2. Institute for Organic Chemistry, NAS of Ukraine, Murmanskaya 5, Kiev-94, 253660, Ukraine;3. Institute for Scintillation Material, SSI “Institute for Single Crystals”, NAS of Ukraine, 60 Lenin Avenue, 61001, Kharkiv, Ukraine |
| |
| Abstract: | In this paper the network structure of e-beam cured DGEBF based epoxy resins is investigated. Two epoxy systems, having different reactivity and cured in different process conditions, were analyzed through solid state NMR spectroscopy. The analysis shows that the more reactive system has higher cross-linking density and higher uniformity of network distribution. Similar information were obtained, in a previous work, on the same systems through dynamic mechanical thermal analysis. It is worth noting that unlike DMTA tests, which interfere with the molecular structure of the analyzed material, due to the heating during the analysis itself, more reliable information, without any artefact, are obtained by solid state NMR, carried out at constant room temperature. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
