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Nanomaterials
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Hybrid Nano Polymer Composites (2nd Edition)
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Hybrid Nano Polymer Composites (2nd Edition)

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "2D and Carbon Nanomaterials".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 3098

Special Issue Editors

Prof. Dr. Rumiana Kotsilkova

E-Mail Website
Guest Editor
Institute of Mechanics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Interests: hybrid polymer nanocomposites; design, processing and characterization; structure-property relationships; 3D and 4D printing
Special Issues, Collections and Topics in MDPI journals
Dr. Mariya Aleksandrova

E-Mail Website
Guest Editor
Department of Microelectronics, Technical University of Sofia, 8 Kliment Ohridski Blvd., 1000 Sofia, Bulgaria
Interests: thin-film electronics; organic electronics; flexible electronics; energy harvesting

Special Issue Information

Dear Colleagues,

By initiating this Special Issue collection, we want to bring together researchers, scientists, and engineers working in the field of Hybrid Nano Polymer Composites, providing them with a platform to exchange ideas, share their latest findings, and contribute to the growth of knowledge in this exciting and rapidly evolving area.

Background and history of this topic

Hybrid Nano Polymer Composites is an interdisciplinary field that combines the unique properties of nanoparticles and polymers to create advanced materials with enhanced mechanical strength, thermal stability, electrical conductivity, and other desired characteristics. The goal is to harness the synergistic effects of at least two components to overcome the limitations of individual materials. The history of Hybrid Nano Polymer Composites can be traced back to the 2000s, when researchers started to more intensively explore the potential of incorporating nanoparticles into polymer matrices. The field has gained significant attention due to the increasing demand for high-performance materials in various industries such as aerospace, automotive, electronics, and energy. Over the years, extensive research has been conducted to develop innovative synthesis techniques, understand structure–property relationships, and explore various combinations, including carbon nanotubes, graphene, metal oxides, and clay nanoparticles, along with various polymer matrices.

Aim and scope of the Special Issue

Volume II of the Special Issue collection on Hybrid Nano Polymer Composites focuses on gathering publications that cover recent developments, cutting-edge research, and advancements in the field. It aims to provide a comprehensive overview of the state of the art, challenges, and future prospects of Hybrid Nano Polymer Composites, in particular with piesoresistive, thermoresistive, and piesoelectric properties for sensing applications, as well as electroactive and shape memory materials, suitable for the new technology of 4D printing, that adds unique functions to 3D-printed architectures under the influence of external stimuli.

Cutting-edge research

Next-generation electronics is a field that is benefiting from the development of these composites via investigating their implementation in flexible and stretchable electronics, printed circuit boards, cooling and heating elements, thermal sensors, as well as emphasizing their electrical conductivity, thermal stability, and ability to integrate with organic and inorganic electronic components. Regarding the field of sensing, their sensitivity, responsiveness, and ability to detect various physical and chemical stimuli should be highlighted. Recently, there has been discussion about their potential for improving energy efficiency, promoting the applications of renewable energy sources, and enabling advancements in supercapacitors and other storage elements for the needs of portable electronics.

What kind of papers we are soliciting

We welcome any papers and review articles related to synthesis techniques, characterization methods, performance evaluation, and applications of Hybrid Nano Polymer Composites with the above-mentioned piesoresistive, thermoresistive, piesoelectric and electroactive smart properties for automotive, consumer electronics, energy, healthcare and 4D printing applications.

Prof. Dr. Rumiana Kotsilkova
Dr. Mariya Aleksandrova
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • piesoresistive
  • thermoresistive
  • piezoelectric
  • shape memory
  • 4D printing
  • automotive
  • electronics
  • energy
  • healthcare applications

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Published Papers (3 papers)

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Research

18 pages, 2873 KiB  
Article
Improving Resistive Heating, Electrical and Thermal Properties of Graphene-Based Poly(Vinylidene Fluoride) Nanocomposites by Controlled 3D Printing
by Rumiana Kotsilkova, Vladimir Georgiev, Mariya Aleksandrova, Todor Batakliev, Evgeni Ivanov, Giovanni Spinelli, Rade Tomov and Tsvetozar Tsanev
Nanomaterials 2024, 14(22), 1840; https://doi.org/10.3390/nano14221840 - 17 Nov 2024
Viewed by 705
Abstract
This study developed a novel 3D-printable poly(vinylidene fluoride) (PVDF)-based nanocomposite incorporating 6 wt% graphene nanoplatelets (GNPs) with programmable characteristics for resistive heating applications. The results highlighted the significant effect of a controlled printing direction (longitudinal, diagonal, and transverse) on the electrical, thermal, Joule [...] Read more.
This study developed a novel 3D-printable poly(vinylidene fluoride) (PVDF)-based nanocomposite incorporating 6 wt% graphene nanoplatelets (GNPs) with programmable characteristics for resistive heating applications. The results highlighted the significant effect of a controlled printing direction (longitudinal, diagonal, and transverse) on the electrical, thermal, Joule heating, and thermo-resistive properties of the printed structures. The 6 wt% GNP/PVDF nanocomposite exhibited a high electrical conductivity of 112 S·m−1 when printed in a longitudinal direction, which decreased significantly in other directions. The Joule heating tests confirmed the material’s efficiency in resistive heating, with the maximum temperature reaching up to 65 °C under an applied low voltage of 2 V at a raster angle of printing of 0°, while the heating Tmax decreased stepwise with 10 °C at the 45° and the 90° printing directions. The repeatability of the Joule heating performance was verified through multiple heating and cooling cycles, demonstrating consistent maximum temperatures across several tests. The effect of sample thickness, controlled by the number of printed layers, was investigated, and the results underscore the advantages of programmable 3D printing orientation in thin layers for enhanced thermal stability, tailored electrical conductivity, and efficient Joule heating capabilities of 6 wt% GNP/PVDF composites, positioning them as promising candidates for next-generation 3D-printed electronic devices and self-heating applications. Full article
(This article belongs to the Special Issue Hybrid Nano Polymer Composites (2nd Edition))
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14 pages, 4167 KiB  
Article
Silver-Doped Reduced Graphene Oxide/PANI-DBSA-PLA Composite 3D-Printed Supercapacitors
by Claudia Cirillo, Mariagrazia Iuliano, Davide Scarpa, Pierpaolo Iovane, Carmela Borriello, Sabrina Portofino, Sergio Galvagno and Maria Sarno
Nanomaterials 2024, 14(20), 1681; https://doi.org/10.3390/nano14201681 - 20 Oct 2024
Viewed by 836
Abstract
This study presents a novel approach to the development of high-performance supercapacitors through 3D printing technology. We synthesized a composite material consisting of silver-doped reduced graphene oxide (rGO) and dodecylbenzenesulfonic acid (DBSA)-doped polyaniline (PANI), which was further blended with polylactic acid (PLA) for [...] Read more.
This study presents a novel approach to the development of high-performance supercapacitors through 3D printing technology. We synthesized a composite material consisting of silver-doped reduced graphene oxide (rGO) and dodecylbenzenesulfonic acid (DBSA)-doped polyaniline (PANI), which was further blended with polylactic acid (PLA) for additive manufacturing. The composite was extruded into filaments and printed into circular disc electrodes using fused deposition modeling (FDM). These electrodes were assembled into symmetric supercapacitor devices with a solid-state electrolyte. Electrochemical characterization, including cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) tests, demonstrated considerable mass-specific capacitance values of 136.2 F/g and 133 F/g at 20 mV/s and 1 A/g, respectively. The devices showed excellent stability, retaining 91% of their initial capacitance after 5000 cycles. The incorporation of silver nanoparticles enhanced the conductivity of rGO, while PANI-DBSA improved electrochemical stability and performance. This study highlights the potential of combining advanced materials with 3D printing to optimize energy storage devices, offering a significant advancement over traditional manufacturing methods. Full article
(This article belongs to the Special Issue Hybrid Nano Polymer Composites (2nd Edition))
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18 pages, 7105 KiB  
Article
PVDF Hybrid Nanocomposites with Graphene and Carbon Nanotubes and Their Thermoresistive and Joule Heating Properties
by Stiliyana Stoyanova, Evgeni Ivanov, Lohitha R. Hegde, Antonia Georgopoulou, Frank Clemens, Fahmi Bedoui and Rumiana Kotsilkova
Nanomaterials 2024, 14(11), 901; https://doi.org/10.3390/nano14110901 - 21 May 2024
Viewed by 1213
Abstract
In recent years, conductive polymer nanocomposites have gained significant attention due to their promising thermoresistive and Joule heating properties across a range of versatile applications, such as heating elements, smart materials, and thermistors. This paper presents an investigation of semi-crystalline polyvinylidene fluoride (PVDF) [...] Read more.
In recent years, conductive polymer nanocomposites have gained significant attention due to their promising thermoresistive and Joule heating properties across a range of versatile applications, such as heating elements, smart materials, and thermistors. This paper presents an investigation of semi-crystalline polyvinylidene fluoride (PVDF) nanocomposites with 6 wt.% carbon-based nanofillers, namely graphene nanoplatelets (GNPs), multi-walled carbon nanotubes (MWCNTs), and a combination of GNPs and MWCNTs (hybrid). The influence of the mono- and hybrid fillers on the crystalline structure was analyzed by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). It was found that the nanocomposites had increased amorphous fraction compared to the neat PVDF. Furthermore, nanocomposites enhanced the β phase of the PVDF by up to 12% mainly due to the presence of MWCNTs. The resistive properties of the nanocompositions were weakly affected by the temperature in the analyzed temperature range of 25–100 °C; nevertheless, the hybrid filler composites were proven to be more sensitive than the monofiller ones. The Joule heating effect was observed when 8 and 10 V were applied, and the compositions reached a self-regulating effect at around 100–150 s. In general, the inclusion in PVDF of nanofillers such as GNPs and MWCNTs, and especially their hybrid combinations, may be successfully used for tuning the self-regulated Joule heating properties of the nanocomposites. Full article
(This article belongs to the Special Issue Hybrid Nano Polymer Composites (2nd Edition))
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