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Polymers
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Conductive and Magnetic Properties of Polymer Nanocomposites
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Conductive and Magnetic Properties of Polymer Nanocomposites

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: 25 October 2025 | Viewed by 4519

Special Issue Editors

Dr. Carmen Rial Tubio

E-Mail Website
Guest Editor
BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
Interests: smart materials; 3D printing; polymer-based composites
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. M. Mounir Bou-Ali

E-Mail Website
Guest Editor
Mechanical and Industrial Production Department, Faculty of Engineering, Mondragon University, Loramendi 4, 20500 Arrasate-Mondragón, Spain
Interests: fluid mechanic; thermal diffusion; magnetic field; magnetorheological fluids

Special Issue Information

Dear Colleagues,

One of the great technological challenges is the development of new smart and multifunctional materials, closely related to the evolution of concepts such as Industry 4.0 and the Internet of Things (IoT). Numerous attempts have been made to develop polymer-based composites with outstanding electronic and magnetic properties. Thus, several aspects, which affect the effectiveness of these polymer-based composites, are mainly related to the possible combinations of functional fillers, integration into devices, and compatibility with several additive manufacturing techniques. Accordingly, there is a need to develop new composite materials that provide these capabilities and can enhance the physical properties and applications, as well as consider the potential impacts on production scale-up.

Dr. Carmen Rial Tubio
Prof. Dr. M. Mounir Bou-Ali
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. Polymers 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 2700 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

  • polymer composites
  • magnetic polymers
  • conducting polymers

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Published Papers (2 papers)

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Research

19 pages, 8451 KiB  
Article
Development of Thermoplastic Bi-Component Electrodes for Triboelectric Impact Detection in Smart Textile Applications
by David Seixas Esteves, Amanda Melo, Bruno Peliteiro, Nelson Durães, Maria C. Paiva and Elsa W. Sequeiros
Polymers 2025, 17(2), 210; https://doi.org/10.3390/polym17020210 - 16 Jan 2025
Viewed by 2652
Abstract
Smart textiles provide a significant technological advancement, but their development must balance traditional textile properties with electronic features. To address this challenge, this study introduces a flexible, electrically conductive composite material that can be fabricated using a continuous bi-component extrusion process, making it [...] Read more.
Smart textiles provide a significant technological advancement, but their development must balance traditional textile properties with electronic features. To address this challenge, this study introduces a flexible, electrically conductive composite material that can be fabricated using a continuous bi-component extrusion process, making it ideal for sensor electrodes. The primary aim was to create a composite for the filament’s core, combining multi-walled carbon nanotubes (MWCNTs), polypropylene (PP), and thermoplastic elastomer (TPE), optimised for conductivity and flexibility. This blend, suitable for bi-component extrusion processes, exemplifies the role of advanced materials in combining electrical conductivity, mechanical flexibility, and processability, which are essential for wearable technology. The composite optimisation balanced MWCNT (2.5, 5, 7.5, and 10 wt.%) and TPE (0, 25, and 50 wt.%) in a PP matrix. There was a significant decrease in electrical resistivity between 2.5 and 5 wt.% MWCNT, with electrical resistivity ranging from (7.64 ± 4.03)104 to (1.15 ± 0.10)10−1 Ω·m. Combining the composite with 25 wt.% TPE improved the flexibility, while with 50 wt.% TPE decreased tensile strength and hindered the masterbatch pelletising process. The final stage involved laminating the composite filament electrodes, with a 5 wt.% MWCNT/PP/(25 wt.% TPE) core and a TPE sheath, into a textile triboelectric impact detection sensor. This sensor, responding to contact and separation, produced an output voltage of approximately 5 V peak-to-peak per filament and 15 V peak-to-peak with five filaments under a 100 N force over 78.54 cm2. This preliminary study demonstrates an innovative approach to enhance the flexibility of conductive materials for smart textile applications, enabling the development of triboelectric sensor electrodes with potential applications in impact detection, fall monitoring, and motion tracking. Full article
(This article belongs to the Special Issue Conductive and Magnetic Properties of Polymer Nanocomposites)
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13 pages, 5021 KiB  
Article
Towards Sustainable Temperature Sensor Production through CO2-Derived Polycarbonate-Based Composites
by Ane Martín-Ayerdi, Luis Rubio-Peña, Nikola Peřinka, Itziar Oyarzabal, José L. Vilas, Pedro Costa and Senentxu Lanceros-Méndez
Polymers 2024, 16(13), 1948; https://doi.org/10.3390/polym16131948 - 8 Jul 2024
Viewed by 1254
Abstract
The steep increase in carbon dioxide (CO2) emissions has created great concern due to its role in the greenhouse effect and global warming. One approach to mitigate CO2 levels involves its application in specific technologies. In this context, CO2 [...] Read more.
The steep increase in carbon dioxide (CO2) emissions has created great concern due to its role in the greenhouse effect and global warming. One approach to mitigate CO2 levels involves its application in specific technologies. In this context, CO2 can be used for a more sustainable synthesis of polycarbonates (CO2-PCs). In this research, CO2-PC films and composites with multiwalled carbon nanotubes (MWCNTs, ranging from 0.2 to 7.0 wt.%) have been prepared to achieve more sustainable multifunctional sensing devices. The inclusion of the carbonaceous fillers allows for the electrical conductivity to be enhanced, reaching the percolation threshold (Pc) at 0.1 wt.% MWCNTs and a maximum electrical conductivity of 0.107 S·m−1 for the composite containing 1.5 wt.% MWCNTs. The composite containing 3.0 wt.% MWCNTs was also studied, showing a stable and linear response under temperature variations from 40 to 100 °C and from 30 to 45 °C, with a sensitivity of 1.3 × 10−4 °C−1. Thus, this investigation demonstrates the possibility of employing CO2-derived PC/MWCNT composites as thermoresistive sensing materials, allowing for the transition towards sustainable polymer-based electronics. Full article
(This article belongs to the Special Issue Conductive and Magnetic Properties of Polymer Nanocomposites)
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