About: Olyakova Marina was born in Minsk, Buelorussia. After graduation from mechanical and technology faculty of Buelorussian politechnical institute in 1986 up to this date she has been working in Nosov Magnitogorsk state technical university at the mechanical and metallurgical department nowadays as assistant professor. Polyakova M. was awarded PhD in Metal Forming in 1998. In 2008 Polyakova Marina was awarded by the Commendation Diploma of Ministry of education and science of the Russian Federation. Since 2012 Polyakova M. is the Honorary Employer of high professional education of the Russian Federation.

Scientific activity of Polyakova M. is connected with quality control in metallurgical technological processes, qualimetry in hardware production and peculiarities of production quality formation in technologies of hardware manufacture. She is also interested in creating nanotechnologies based on combination different types of deformation. She has got two patents of the Russian Federation for an invention the continuous method of carbon wire deformation nanostructuring. Various hardware devices and tools already applied for steel wire production can be used to implement this method thus simplifying its introduction to the current industrial equipment.

Polyakova M. took part in many international conferences and last year she was the section chair at The Second International Conference on Pure and Applied Mathematics (St.Petersburg, 20-21 July). As a result of scientific work Polyakova M. wrote and published more than 75 papers among them papers published in referred journals. She is coauthor of three monographs about different aspects of downstream metal production.

About: Galder Kortaberria was born in Donostia (Spain) in 1975. He studied Chemistry in the Basque Country University (EHU/UPV) from 1993 to 1998, with specialization in Polymer Chemistry. Then he started his PhD in the “Materials Engineering” program in the Polytechnic Engineering School of San Sebastian, under the supervision of Professor Iñaki Mondragon, about the monitoring of the cure process in epoxy matrices modified with thermoplastics or elastomers by simultaneous impedance and NIR spectroscopies. It was defended in 2004 with the qualification of Cum Laude. Then he obtained the permanent position in the same Polytechnic School as Associate Professor. As a senior member of GMT “Materials + Technologies” Group, his actual research is mainly devoted to the synthesis and characterization of copolymeric matrix-based nanocomposites with nanoparticles, nanotubes or other nanoentities. He has published more than 70 papers in high impact journals (with an h index of 19), has edited 2 complete books and published around 10 book chapters. He has directed 3 PhD thesis, and has presented more than 30 oral presentations in international conferences (3 of them as invited lecturer). He is nowadays reviewer in more than 20 journals. He has taken part in more than 50 projects funded by Spanish, Basque or European governments and companies, both as main or collaborator researcher.

"Coatings based on photocurable epoxy formulations and different nanofillers: Preparation and dielectric characterization"

Abstract: UV curing is becoming increasingly important in the field of coatings. UV light induces polymer formation, allowing a fast transformation of the liquid monomer into the solid film to be obtained, with tailored physical-chemical and mechanical properties. Radical or cationic species are generated by the interaction of the UV light with photoinitiator. In the cationic polymerization, onium salts are used to generate very-strong Brönsted acids upon photodecomposition. This polymerization presents some advantages compared to the radical one, such as lack of inhibition by oxygen, low shrinkage, good mechanical properties and good adhesion properties to various substrates. Moreover, the monomers employed are generally characterized as being less toxic and irritant. On the other hand, among several experimental techniques, including nuclear magnetic resonance, rheology and gas permeation chromatography, dielectric relaxation spectroscopy (DRS) is a suitable technique for the study of nanocomposites. With its unparalleled range of frequency and temperature, is a uniquely suited technique for both analyzing dielectric properties and nanocomposite dynamics through the analysis of the effect of nanofillers on them. In the present work, coatings consisting on nanocomposites based on photocurable epoxy system modified with different nanofillers (Al2O3 or Fe2O3 metal oxide nanoparticles or ceramic BaTiO3 and ZnO nanoparticles) are prepared and characterized in terms of dielectric spectroscopy and other techniques such as TEM or AFM, analyzing their electrical properties and obtained film morphologies, together with their percolation threshold and mechanical behavior.