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Rumiana Kotsilkova

Position: Professor, D.Sc.

Head of OLEM

Department: Fluid Mechanics


Open Laboratory of Experimental Micro and Nano Mechanics (OLEM)

Room number: 405 at Block 4

Phone: +359 2 979 6462





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 15


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,

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.

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.

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,

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,

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),

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),


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)


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Modified date:08-05-2017