Position: Professor, D.Sc.

Head of OLEM

Department: Fluid Mechanics


Open Laboratory of Experimental Micro and Nano Mechanics (OLEM)

Room number: 405

Phone: +359 2 979 6462


E-mail: kotsilkova@imbm.bas.bg



Scientific degrees, institution, year:

  • Professor, BAS, 2007

  • Doctor of Sciences, BAS, 2005

  • Invited Professor at Yamagata University, Venture Business Laboratiry, Yonesawa, Japan, 2003

  • Visiting Professor at the Toyota Technological Institute, JSPS Fellowship, Nagoya, Japan, 1997

  • Associate Professor, BAS, 1992

  • Post Doc. Alexander von Humboldt Fellowship, Universität Karlsruhe, Germany, 1988-1990

  • PhD, BAS, 1983

Fields of Research:


Polymer nanocomposites design and characterization. Reinforcement of polymers with nanoparticles of graphene, carbon nanotubes, nanoclays, noble metals and metal oxides. Rheological control on nanocomposite technology. Processing-structure-properties relationships. Interfacial and size phenomena. Rheology of nanodispersions. Nanoscale structure and morphology. Nano-, micro and macromechanics of polymer nanocomposites.

Extended Information

120 Publications in peer review journals and conference communications.

836 Citations

h-index 25


Recent Publications:

Books and Chapters:

1. E. Ivanov, R. Kotsilkova. Ch. 17: Reinforcement Effects of Carbon Nanotubes in Polypropylene: Rheology, Structure, Thermal Stability, and Nano, Micro and Macromechanical Properties. Handbook of Nanoceramic and Nanocomposite Coatings and Materials. (Eds. A. Makhlouf, D. Scharnweber) Elsevier2015, 357-388, http://www.sciencedirect.com/science/book/9780127999470

2. Kotsilkova R, Ivanov E, Krusteva E, Silvestre C, Cimmino S, Duraccio D. Evolution of rheology, structure and properties around the rheological flocculation and percolation thresholds in polymer nanocomposites. In: “Ecosustainable Polymer Nanomaterials for Food Packaging” (Silvestre C, Cimmino S, Eds), Taylor & Francis Books, Inc., Ch.3  (2013)pp. 55-86, ISBN: 978-90-04-20737-0.  http://www.crcnetbase.com/isbn/9789004207387

3. Kotsilkova R, E. Ivanov, E. Krusteva. Polymer Nanocomposites of Epoxy Resin and Multiwall Carbon Nanotubes: Processing-Structure-Properties Relationships. In:  Mechanics of Nanomaterials and Nanotechnology (Eds. V. Kavardzhikov, L.  Parashkevova, A. Baltov), Sci. Series,  Bulgarian Academy of Sciences, Part II, Ch.1  (2012), 51-90,  ISSN: 1314-3034.

4. Ivanov E, I. Borovanska, B. Milosheva, R. Kotsilkova. Experimental Nano and Micro Mechanics of Nanostructured Materials. In: Mechanics of Nanomaterials and Nanotechnology  (Eds. V. Kavardzhikov, L. Parashkevova, A. Baltov), Sci. Series, Bulgarian Academy of Sciences, Part IV, Ch.3 (2012), 287-326,  ISSN: 1314-3034.

5. R Kotsilkova. Thermoset nanocomposites for engineering applications, Smithers Rapra Publishing, 2007, pp. 1-326, ISBN: 978-1-84735-063-3


Recent 5 Publications in peer-review journals (2016-2017):

1. R. Kotsilkova, E. Ivanov, P. Todorov, I. Petrova, N. Volynets, A. Paddubskaya, P. Kuzhir, V. Uglov, I. Biró, K. Kertész, G. I. Márk, and L. P. Biró. Mechanical and electromagnetic properties of 3D printed hot pressed nanocarbon/poly(lactic) acid thin films. J. Appl. Phys. 121, 064105 (2017); doi: 10.1063/1.4975820. http://aip.scitation.org/doi/full/10.1063/1.4975820

2. R. Kotsilkova, E. Ivanov, P. Todorov, I. Petrova, N. Volynets, A. Paddubskaya, P. Kuzhir, V. Uglov, I. Biró, K. Kertész, G. I. Márk, and L. P. Biró. Mechanical and electromagnetic properties of 3D printed hot pressed nanocarbon/poly(lactic) acid thin films. J. Appl. Phys. 121, 064105 (2017); doi: 10.1063/1.4975820, http://aip.scitation.org/doi/full/10.1063/1.4975820

3. A. Paddubskaya, N. Valynets, P. Kuzhir, K. Batrakov, S. Maksimenko, R. Kotsilkova, H. Velichkova, I. Petrova, I. Biró, K. Kertész, G. I. Márk, Z. E. Horváth, and L. P. Biró. Electromagnetic and thermal properties of three-dimensional printed multilayered nano-carbon/poly(lactic) acid structures. Journal of Applied Physics 119, 135102 (2016); doi: 10.1063/1.4945576, http://dx.doi.org/10.1063/1.4945576

4. R. Kotsilkova, P. Todorov, E. Ivanov, T. Kaplas, Y. Svirko, A. Paddubskaya, P. Kuzhir. Mechanical properties investigation of bilayer graphene/poly(methyl methacrylate) thin films at macro, micro and nanoscale. Carbon, 100, 2016, 355-366 (ISSN: 0008-6223),  http://www.sciencedirect.com/science/article/pii/S0008622316300367

5. I. Petrova, R. Kotsilkova, E. Ivanov, P. Kuzhir, D. Bychanok, K. Kouravelou, Th. Karachalios, A. Soto Beobide, G. Voyiatzis, D. Codegoni, F. Somaini, L. Zanotti. Nanoscale reinforcement of polypropylene composites with carbon nanotubes and clay: dispersion state, electromagnetic and nanomechanical properties. Polymer Engineering & Science, Vol. 56 (3), 269-277, 2016 (Online ISSN: 1548-2634), http://onlinelibrary.wiley.com/doi/10.1002/pen.24247/abstract


Coordination of EU Projects

Project Coordinator:

1. H2020-Graphene 3D (2017-20200 " Multifunctional graphene-based nanocomposites with robust electromagnetic and thermal properties for 3D printing applcation'

Coordinator of IMech Team - Participant in EU Projects:

1. H2020-Graphene Core 1 “Graphene-based disruptive technologies” (2016-2018)

2. FP7-ICT-Graphene FET Flagship “Graphene-Based Revolutions in ICT and Beyond” (2014-2016).

3. Nano-XCT (FP7-NMP) "Compact X-ray computed tomography system for non destructive characterization of nano materials" (01.05. 2012-2015)

4. BY-NanoERA - (FP7-INCO) "Industrial developments of applied nanoelecronics", (01.11.2010- 30.10.2013)

5. Napolynet (FP7- NMP) "Setting up research ­intensive clusters across the EU on characterization of polymer

nanostructures" (01.04.2008-31.03.2011г)

6. EC-FP7-NMP1-TeAm “Improving the Services of the NMP-NCP Network Trough Trans-national Activities”

(01.04.2009 - 30.09. 2011).

7. Industrial Project with Huntsman Polyurethanes, Belgium "Rheology of Nanoclay Dispersions" (2011-2013)


Coordination of national projects

1. OЛEM (DO-02-52) "Set up of Open Laboratory on experimental micro and nanomechanics of materials" -

Research Infrastructure project, supported by Science Fund of Bulgaria (2009-2011)

2. Multifunctional polymer nanocompositeS with CNTs and alumina for engineering applications. Bilateral projects BAS-CNR, Italy (2007-2009)

3. New approach for design of polymer nanocomposites reinforced with CNTs. Bilateral projects BAS-CNR, Italy (2010-2012

4. Structure and nanomechanics of nanoreinforced polymer composites. Bilateral projects BAS-CNR, Italy (2013-2015).



Humboldt Club, Bulgaria


JSPS, Japan grant (1997)

Alexander von Humboldt, Germany grant (1988-2000)

Donation of rheology equipment from Alexander von Humboldt Stiftung (1990, 2003)


Home page: http://www.imbm.bas.bg/index.php?page=rumiana-kotsilkova