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Crosslinking of Epoxy-Oligoesteric Mixtures in the Presence of Carboxy-Containing Derivative of ED-24 Epoxy Resin

Michael Bratychak1, Bogdana Bashta1, Piotr Bruzdziak2, Olena Astakhova1 and Olena Shyshchak1
1Lviv Polytechnic National University, 12, St. Bandera str., 79013 Lviv, Ukraine; 2 Gdansk University of Technology, 11/12 Gabriela Narutowicha str., PL 80-952, Gdansk, Poland;
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Crosslinking of epoxy-oligomeric mixtures has been studied at room temperature and at heating to 383, 403 and 423 K for 15, 30, 45, 60 and 75 min in the presence of polyethylenepolyamine. The mixtures consist of industrial ED-20 epoxy resin, oligoesteracrylate TGM-3 and carboxy-containing derivative of ED-24 epoxy resin. The effect of mixture composition, temperature and process time on the gel-fraction content and hardness of polymeric films has been examined. Using IR-spectroscopy the chemism of network formation has been determined.

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