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Faculty of Polymer Technology is the only one in South East Europe offering holistic study programs in polymer technology, covering all aspects: Chemistry and Materials Science, Design and Simulation, Processing, Characterization of polymer materials and Applications.

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Saturday, October 18, 2025

/ Categories: Aktualno

Objava znanstvenega članka z naslovom »Synergistic Integration of Polypyrrole, Graphene Oxide, and Silver Nanowires into Flexible Polymeric Films for EMI Shielding Applications«

V oktobru 2025 je bil v reviji Molecules2025, Volume 30, Issue 21, 4221 (IF=4,6), objavljen znanstveni članek z naslovom »Synergistic Integration of Polypyrrole, Graphene Oxide, and Silver Nanowires into Flexible Polymeric Films for EMI Shielding Applications«. Članek je rezultat skupnega raziskovalnega dela v okviru projekta Grinshield, kjer so sodelovali avtorji: Brankica Gajić, Marija Radoičić, Muhammad Yasir, Warda Saeed, Silvester Bolka, Blaž Nardin, Jelena Potočnik, Danica Bajuk-Bogdanović , Gordana Ćirić-Marjanović, Zoran Šaponjić in Svetlana Jovanović.

Članek je prosto dostopen na povezavi: Synergistic Integration of Polypyrrole, Graphene Oxide, and Silver Nanowires into Flexible Polymeric Films for EMI Shielding Applications

Povzetek članka

The remarkable growth of high-frequency electronic systems has raised concerns about electromagnetic interference (EMI), emphasizing the need for lightweight and efficient shielding materials. In this study, ternary composites based on polypyrrole (PPy), graphene oxide (GO), and silver nanowires (AgNWs) were synthesized through chemical oxidative polymerization of pyrrole monomer and embedded into polycaprolactone (PCL) matrices to create flexible films. Structural and morphological analyses confirmed the successful incorporation of all components, with scanning electron microscopy showing granular PPy, sheet-like GO, and fibrous AgNWs, while spectroscopic studies indicated strong interfacial interactions without damaging the PPy backbone. Thermomechanical analysis revealed that GO increased stiffness and defined the glass transition, whereas AgNWs improved toughness and energy dissipation; their combined use resulted in balanced properties. EMI shielding effectiveness (SE) was tested in the X-band (8–12 GHz). Pure PPy exhibited poor shielding ability, while the addition of GO and AgNWs significantly enhanced performance. The highest EMI SE values were observed in PPy/GO–AgNWs composites, with an average SE of 16.05 dB at 20 wt% of the composite in the PCL matrix, equivalent to about 84.4% attenuation of incident waves. These results demonstrate that the synergistic integration of GO and AgNWs into PPy matrices enables the creation of lightweight, flexible films with advanced EMI shielding properties, showing great potential for next-generation electronic and aerospace applications.

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Faculty of Polymer Technology is a private non-profit higher education and research institution based in Slovenj Gradec

Faculty of Polymer Technology is a private non-profit higher education and research institution based in Slovenj Gradec. It was founded in 2006 as Polymer Technology College and was promoted to Faculty by the Slovenian Quality Assurance Agency for Higher Education in February 2017.

Its founders are companies from Slovene plastics industry (Adient Slovenj Gradec d.o.o., Grammer Automotive Slovenija d.o.o., Plastika Skaza d.o.o., Kopur d.o.o., BSH Hišni aparati d.o.o. Nazarje), Regional institutions (Municipality of Slovenj Gradec, RRA Koroška d.o.o) and Industry associations/Research organisations (GIZ Grozd Plasttehnika, TECOS - Razvojni center orodjarstva Slovenije).

Others about us

Boris Maroh, inž. tehnol. pol.
Researcher - Polymer competence center Leoben GmbH

I will always remember countless debates from all the lectures that our group of eight students attended. We were the first generation of MA students of Polymer Technology. My Master’s degree enabled me to continue my career path in polymer materials abroad, as well as to continue my studies at University of Leoben.

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Igor Skaza,, Owner and Managing Director of
Plastika Skaza d.o.o.

The services that the Faculty of Polymer Technology offers help solve the problems that we encounter in our production and development of products. They help us reach our company goals. We have been successfully cooperating for many years; they offer quality solutions and are a responsive and a reliable partner that helps us grow and fulfil our mission – to create high quality products from Eco-friendly Plastics.

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Tadeja Rožanc,
Graduate

The faculty organises meetings with foreign experts and professionals, company visits, use of laboratory, and a whole list of practically oriented skills which definitely play a much more decisive role when talking to employers than the actual evaluation grades in the grade book.

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Žan Skodlar,
BA Student of Polymer Technology

The studies at FTPO are practically oriented and offer lectures from a range of professionals connected to the business sector as well, which quarantines high quality education for the students and enables them to have excellent employment opportunities.

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Education, Research and Industry cooperation

As the only academic institution focusing on polymer technology in Slovenia, Faculty of Polymer Technology bases its activities on three pillars: Education, Research and Industry cooperation. We provide our students with the necessary knowledge and skills to become innovative and competent engineers that are fit for responsible tasks in their future assignments. We support society and industry in Slovenia and beyond to cope with the increasingly competitive economic and rapidly changing technological environment by knowledge creation through innovative application oriented research on polymer materials and technologies, Know-How transfer and opportunities for life long learning. We live by our values – Responsiveness, Continuous improvement, Practical Attitude and Personal Approach – to achieve these goals.