Development of Sustainable Thermosets from Cardanol-based Epoxy Prepolymer and Ionic Liquids
Published on 2017-08-11T20:43:37Z (GMT) by
In this work, the development of new biobased epoxy networks using phosphonium-based ionic liquids combined with dicyanamide and phosphinate counteranions as initiators of epoxy prepolymers was compared with a biobased epoxy–amine system. Ionic liquids (ILs) displayed high reactivity toward cardanol-based epoxy prepolymers, and the obtained biobased epoxy/IL networks highlighted a glass transition temperature of around 30 °C, an excellent thermal stability higher than 450 °C and higher hydrophobic behavior compared to biobased epoxy–amine networks. In addition, the use of a cardanol-based epoxy prepolymer as a modifier of epoxy/IL networks was also investigated. In this case, the final properties of epoxy/IL networks were improved by the presence of biobased epoxy compounds, especially their surface energy as well as their fracture toughness (+180%), suggesting a new way to develop partially biobased epoxy coatings.
Cite this collection
Nguyen, Thi Khanh Ly; Livi, Sébastien; Soares, Bluma G.; Barra, Guilherme M. O.; Gérard, Jean-François; Duchet-Rumeau, Jannick (2017): Development of Sustainable Thermosets from Cardanol-based
Epoxy Prepolymer and Ionic Liquids. ACS Publications.