DBPapers
DOI: 10.5593/SGEM2014/B61/S24.010

EPOXY/CARBON COMPOSITES. THE CURING BEHAVIOUR AND MORPHOLOGY DEPENDED ON THE DEGREE OF STRUCTURE ORDER

U. Szeluga, S. Pusz, B. Nagel, S. Czajkowska, B. M.-Leszczak, H. Galina
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-20-9 / ISSN 1314-2704, June 19-25, 2014, Book 6, Vol. 1, 69-76 pp

ABSTRACT
The aim of this work was to study the influence of the degree of the structure ordering for a series of carbon fillers, which includes, on one hand, anthracite consisting of graphene planes with various degree of organization, and, on the other hand, graphite that is composed of well-ordered graphene sheets, on the curing behavior and morphology of epoxy composites containing these fillers. The systematic studies was performed for composites based on low molecular weight diglycidyl ether of bisphenol A cross-linked with aliphatic amines. Raw Svierdlovski anthracite (Donbas, Ukraine) of turbostratic structure, and the anthracite thermally treated at 950, 1400, 1700 and 2000 C, with the structure changing gradually as a result of increasing calcination temperature toward the graphite-like structure, were used as carbon fillers. The anthracite fillers were compared to natural graphite that is composed of well-ordered graphene sheets. Epoxy composites with thermally modified anthracites, as well as natural graphite were prepared according to procedure including the breakdown of the filler agglomerates by use of an ultrasonic disintegrator and shear mixing.

Keywords: anthracite fillers, graphene sheets, epoxy composites, curing reactions,
morphology