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Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications

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A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanocomposite Materials".

Deadline for manuscript submissions: closed (31 January 2022) | Viewed by 10699

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Prof. Dr. Ioan Bica

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Guest Editor

Faculty of Physics, West University of Timisoara, Timisoara, Romania
Interests: plasma synthesis of nano- and microparticles; assembly of nanomicroparticles in liquid and vascoelastic matrices; magneto-dielectric properties of nano-micromaterials; bio-magnetically active materials

Special Issue Information

Dear Colleagues,

The increasingly sophisticated demands of contemporary society caused by climate change, electromagnetic smog, and the health crisis, require the scientific community to find immediate solutions. Recent developments in nanotechnology and materials science have shown that one of the most promising solutions is the realization of composite materials consisting of polymeric fibers doped with magnetic nano-microparticles. The properties induced by the magnetic phase of the composite, allows such materials to act as sensors and transducers for various applications such as electromagnetic and ionizing radiation shielding, health monitoring, and healing systems or antiviral and antibacterial activity.

This Special Issue will highlight the progress made in the field of composite materials based on polymeric fibers and magnetic nano-microparticles, to underline the main issues, which need to be addressed, and to provide solutions for the further development of their physical properties as required for various applications. Thus, this Special Issue will publish original high-quality research papers covering the most recent advances as well as comprehensive reviews addressing state-of-the-art topics in the field of synthesis, properties, and applications of such composite nanomaterials.

Topics to be covered by this Special Issue include, but are not limited to, the following:

New methods for the preparation of composite nanomaterials by doping with magnetic, dielectric nanoparticles, or combinations of them;
New experimental methods for studying physical properties of composite nanomaterials;
Investigating the nano-microscale structural properties of composite nanomaterials, as well as the physical mechanisms responsible for their bulk properties;
Development of new technologies for testing composite materials based on polymeric fibers and magnetic nano-microparticles;
Future research directions related to the usage of composite materials;

Prof. Dr. Ioan Bica
Guest Editor

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

nanostructured composite materials
magnetic nano-micro particles
polymeric fibers
iron oxide nano-micro fibers
nanographene
nano and microscale characterization
smart properties
sensors
transducers

Published Papers (6 papers)

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Editorial

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4 pages, 204 KiB

Open AccessEditorial

Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications

by Ioan Bica

Nanomaterials 2022, 12(13), 2240; https://doi.org/10.3390/nano12132240 - 29 Jun 2022

Cited by 2 | Viewed by 1140

Abstract

The increasingly sophisticated requirements of contemporary society, in relation to the assessment of environmental and health factors, are receiving much attention from the scientific community [...] Full article

(This article belongs to the Special Issue Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications)

Research

Jump to: Editorial

14 pages, 14358 KiB

Open AccessArticle

Synthesis of Al–Al₂O₃–CNF Composite by Cold Spray Method: Powder Preparation and Synthesized Objects Characterization

by Anton Yu. Nalivaiko, Vitaliy V. Doroshenko, Nguyen Kuang, Dmitriy Yu. Ozherelkov, Ivan A. Pelevin and Alexander A. Gromov

Nanomaterials 2022, 12(9), 1559; https://doi.org/10.3390/nano12091559 - 04 May 2022

Viewed by 2548

Abstract

This paper is devoted to studying the composite material of the aluminum–alumina–carbon nanofiber (CNF) system. The paper considers in detail the process of preparation of the specified composite by ball milling, as well as the process of synthesis of a solid object (coating) by the cold spray method. The synthesized objects were studied using optical and electron microscopy, and the hardness of objects of various compositions was measured. The processes of interaction of composite particles are discussed in detail. The influence of CNF on the distribution of particles in a solid object and on the hardness of objects has been considered and discussed. Full article

(This article belongs to the Special Issue Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications)

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27 pages, 20111 KiB

Open AccessArticle

Magnetic Field Effects Induced in Electrical Devices Based on Cotton Fiber Composites, Carbonyl Iron Microparticles and Barium Titanate Nanoparticles

by Gabriel Pascu, Octavian Madalin Bunoiu and Ioan Bica

Nanomaterials 2022, 12(5), 888; https://doi.org/10.3390/nano12050888 - 07 Mar 2022

Cited by 6 | Viewed by 1565

Abstract

This work consists in the process of preparing magnetic active composite materials based on cotton fibers, iron carbonyl microparticles and barium titanate nanoparticles, and the electrical devices manufactured with them. For different compositions of the aforementioned ingredients, three such composites are manufactured and compacted at constant pressure between two electrodes. In the absence and in the presence of a magnetic field, using an RLC bridge, magnetocapacitive, magnetoresistive and magnetopiezoelectric effects are highlighted in the custom fabricated devices. It is shown that these effects are significantly influenced by the composition of the materials. Based on the model elaborated in this paper, the mechanisms that contribute to the observed effects are described and the theoretical predictions are shown to agree with the experimental data. The obtained results can be used in the assembly of hybrid magnetic active composites, which are low cost, ecological and have other useful physical characteristics for applications. Full article

(This article belongs to the Special Issue Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications)

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13 pages, 4218 KiB

Open AccessArticle

Interfacing MXene Flakes on a Magnetic Fiber Network as a Stretchable, Flexible, Electromagnetic Shielding Fabric

by Zhen Miao, Xiaohong Chen, Honglei Zhou, Ping Liu, Shaoli Fu, Jiajie Yang, Yuhang Gao, Yupeng Ren and Dong Rong

Nanomaterials 2022, 12(1), 20; https://doi.org/10.3390/nano12010020 - 22 Dec 2021

Cited by 19 | Viewed by 3335

Abstract

A unique self-standing membrane composed of hierarchical thermoplastic polyurethane (TPU)/polyacrylonitrile (PAN) fibers is prepared by the electrospinning technique, followed by a simple dip-coating process. Fe₃O₄ nanoparticles are uniformly anchored on TPU/PAN fibers during the electrospinning process, enabling the membrane to achieve effective electromagnetic interference shielding (EMI SE) performance. Such a hybrid membrane has a high magnetization of 18.9 emu/g. When MXene (Ti₃C₂T_x) layers are further loaded on the TPU/PAN/Fe₃O₄NPs hybrid membrane, its EMI SE performance in the X band can exceed 30 dB due to the hydrogen bonds generated between the macromolecular chain of PAN and the functional group (T_x) on the surface of MXene. Simultaneously, the interfacial attraction between MXene and the TPU/PAN/Fe₃O₄NPs substrate is enhanced. The EMI SE mechanism of the hybrid membrane indicates that this film has great potential in the fields of wearable devices and flexible materials. Full article

(This article belongs to the Special Issue Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications)

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14 pages, 11718 KiB

Open AccessArticle

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

by Ioan Bica, Eugen Mircea Anitas and Liviu Chirigiu

Nanomaterials 2020, 10(10), 2060; https://doi.org/10.3390/nano10102060 - 19 Oct 2020

Cited by 15 | Viewed by 1721

Abstract

We present a simple, low-cost, and environmental-friendly method for the fabrication of hybrid magnetorheological composites (hMCs) based on cotton fibers soaked with a mixture of silicone oil (SO), carbonyl iron (CI) microparticles, and iron oxide microfibers (

μ

F). The obtained hMCs, with [...] Read more.

μ

F). The obtained hMCs, with various ratios (

Φ

) of SO and

μ

F, are used as dielectric materials for manufacturing electrical devices. The equivalent electrical capacitance and resistance are investigated in the presence of an external magnetic field, with flux density B. Based on the recorded data, we obtain the variation of the relative dielectric constant (

ϵ_{r}^{'}

), and electrical conductivity (

σ

), with

Φ

, and B. We show that, by increasing

Φ

, the distance between CI magnetic dipoles increases, and this leads to significant changes in the behaviour of

ϵ_{r}^{'}

and

σ

in a magnetic field. The results are explained by developing a theoretical model that is based on the dipolar approximation. They indicate that the obtained hMCs can be used in the fabrication of magneto-active fibers for fabrication of electric/magnetic field sensors and transducers. Full article

(This article belongs to the Special Issue Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications)

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16 pages, 4746 KiB

Open AccessArticle

Graphene Platelets-Based Magnetoactive Materials with Tunable Magnetoelectric and Magnetodielectric Properties

by Ioan Bica and Eugen Mircea Anitas

Nanomaterials 2020, 10(9), 1783; https://doi.org/10.3390/nano10091783 - 09 Sep 2020

Cited by 6 | Viewed by 1784

Abstract

We fabricate hybrid magnetoactive materials (hMAMs) based on cotton fibers, silicone oil, carbonyl iron and graphene nanoplatelets (nGr) at various mass concentrations

Φ_{nGr}

. The obtained materials are used as dielectric materials for manufacturing plane electrical capacitors. The equivalent electrical capacitance [...] Read more.

We fabricate hybrid magnetoactive materials (hMAMs) based on cotton fibers, silicone oil, carbonyl iron and graphene nanoplatelets (nGr) at various mass concentrations

Φ_{nGr}

. The obtained materials are used as dielectric materials for manufacturing plane electrical capacitors. The equivalent electrical capacitance

C_{p}

and resistance

R_{p}

are measured in an electric field of medium frequency f, without and respectively with a magnetic field of magnetic flux density B in the range from 0.1 T up to 0.5 T. The results are used to extract the components

ϵ_{r}^{'}

and

ϵ_{r}^{″}

of the complex relative permittivity

ϵ_{r}^{*}

, and to reveal the magnitude of the induced magnetoelectric couplings

k_{x}

and magnetodielectric effects

M D E

. It is shown that

ϵ_{r}^{'}

ϵ_{r}^{″}

k_{x}

and MDE are significantly influenced by

f, B

and

Φ_{nGr}

. We describe the underlying physical mechanisms in the framework of dipolar approximation and using elements of dielectric theory. The tunable magnetoelectric and magnetodielectric properties of hMAMs are useful for manufacturing electrical devices for electromagnetic shielding of living organisms. Full article

(This article belongs to the Special Issue Composite Materials Based on Polymeric Fibers Doped with Magnetic Nanoparticles: Synthesis, Properties and Applications)

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