About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Kuznetsova L.M. – senior lecturer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Potapova L.I. – candidate of chemical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Yagund E.M. – candidate of chemical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Yakhin R.G. – doctor of technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 |
| Title of the article | Research of the influence of carbon nanotubes on the conversion of epoxy groups in epoxy-aminogen compositions |
| Abstract. | The effects of the concentration and functionalization of carbon nanotubes on the degree of conversion of epoxy groups in epoxy-aminogen compositions based on ED-20 and the PEPA are studied. It has been shown that increasing the concentration of functionalized carbon nanotubes (CNT) from 0 to 0,5 % increases the degree of conversion of the epoxy groups during curing at a room temperature. Further increase in concentration CNT of up to 1 % does not affect the reaction kinetics. For native CNT such a relationship is not established. Explains such a pronounced effect on the f-CNT aminolysis reaction kinetics and ultimate degree of conversion of epoxy groups, apparently, the catalytic effect of oxygen-containing groups (hydroxyl, carboxyl, and others) grafted to the surface of CNTs and their direct involvement in the reaction. By optical microscopy showed that the size of the agglomerates of nanotubes were substantially higher than in the native systems than in the system with the functionalized nanotubes. These results may be important in the development of creation epoxycomposites modified by nanoparticles. |
| Keywords. | epoxy oligomers, carbon nanotubes, IR-spectroscopy method. |
| For citations: | Kuznetsova L.M., Potapova L.I., Yagund E.M., Yakhin R.G. Research of the influence of carbon nanotubes on the conversion of epoxy groups in epoxy-aminogen compositions // Izvestiya KGASU. 2015. №4(34) P.273-279. |
