Effect of clay on structure of epoxy/PCL nanocomposite: in situ optical microscopy study

0379708 - ÚMCH 2013 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Rotrekl, Jakub - Kelnar, Ivan
Effect of clay on structure of epoxy/PCL nanocomposite: in situ optical microscopy study.
6th international conference on times of polymers (TOP) and composites - AIP Conference Proceedings. Melville: American Institute of Physics (AIP), 2012 - (D´Amore, A.; Grassia, L.; Acierno, D.), s. 244-246. 1459. ISBN 978-0-7354-1062-6.
[International Conference Times of Polymers & Composites /6./ - TOP 2012. Ischia (IT), 10.06.2012-14.06.2012]
Grant CEP: GA AV ČR IAA200500904
Výzkumný záměr: CEZ:AV0Z40500505
Institucionální podpora: RVO:61389013
Klíčová slova: epoxy nanocomposites * optical microscopy * microstructure
Kód oboru RIV: JI - Kompozitní materiály

The effect of clay on reaction induced phase separation (RIPS) mechanism and resulting morphology of diglycidyl ether of bisphenol-A based epoxy containing poly(ε-caprolactone)(PCL) was investigated by optical microscopy. At PCL concentration lower than 10%, the presence of the clay leads to refinement of PCL inclusions, while at 15% and 20% the clay causes the phase inversion of structure consisting of PCL rich matrix with rough epoxy globules to the fine PCL inclusions in epoxy matrix. At 30% PCL content, the influence of clay is analogical but leads to the transformation into co-continous structure only. These changes in morphology seem to be a consequence of the change in dynamic asymmetry of the system, caused by affecting of the epoxy parameters by clay.
Trvalý link: http://hdl.handle.net/11104/0210599