Smart Nanocomposites and Their Applications

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

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 969

Special Issue Editor


E-Mail Website
Guest Editor
Smart Materials and Nanodielectrics Laboratory, Department of Materials Science, University of Patras, 26504 Patras, Greece
Interests: smart materials; polymer nanocomposites; polymers; nanodielectrics; dielectric behavior; conductivity; storing/retrieving energy; stimuli-responsive materials; active dielectrics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleague,

It is globally accepted that nanocomposites constitute an important novel class of engineering materials in the field of high-tech applications, but recently they have begun to be applied in aspects of everyday life as well. Matrices could vary between different types of polymers, ceramics, and metals. Possible reinforcing phases could vary between inorganic or organic nanofibers, nanotubes, nanoparticles, 2D nanoinclusions, etc. By employing a suitable preparation procedure and adequate constituents, the nanocomposites’ properties and stimuli response can be tailored and adjusted according to the requirements of the application.   

Functional materials constitute a class of materials with the ability to execute certain functions (operations) under the influence of an external (environmental) stimulus or sign control. Until recently, the choice of engineering materials for a specific application was solely based on the values of their mechanical and physical properties, such as Young’s modulus, tensile strength, refractive index, electrical conductivity, etc. All these values compose the material’s behavior at service. Nowadays, the requirements/expectations of engineering materials are enhanced; they should be able to respond in real time to a rapidly varying environment or control signals. For this reason, besides the nominal values of various materials’ properties, their functionality and their controllable behavior under different conditions and stimuli is of great importance and constitutes the main goal of novel materials. By far, monolithic materials fail to fulfill these requirements.

Smart or multifunctional performance can be achieved by combining various desirable properties in a materials’ system, exhibiting all necessary responses under different loading conditions at service. Mechanical sustainability, suitable thermal response, tunable electric conductivity, variable electric polarization and dielectric permittivity, magnetic properties, and thermally induced phase changes are the parts which make up the overall smart/multi-functional behavior.

This Special Issue on “Smart Nanocomposites and Their Applications” welcomes original research and review papers on experimental or theoretical/computational studies of all kinds of smart/multifunctional nanocomposites. Design and fabrication, thermo-mechanical performance, fire retardants, biological/biomimetic systems, biomedical applications, electrical engineering devices, nanocomposites for energy applications, nanodielectrics, magnetic nanocomposites, stimuli-responsive materials, piezoelectrics, ferroelectrics, pyroelectrics, electro/magneto-rheological systems, shape memory materials, structure properties relationships, polymer matrix nanocomposites and hybrids, and all kind of current and forthcoming applications, comprise a short—and definitely not exhaustive—list of the possible subjects for inclusion within this Special Issue.

Prof. Dr. Georgios C. Psarras
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

  • nanocomposites
  • multifunctional materials
  • stimuli-responsive materials
  • hybrid
  • nanodielectrics
  • energy materials
  • thermo-mechanical response
  • relaxations
  • interfacial effects
  • energy storage/harvesting
  • polarization
  • conductivity mechanisms
  • magnetic properties

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

14 pages, 4507 KiB  
Article
Crack Detection of Reinforced Concrete Structure Using Smart Skin
by Yu-Jin Jung and Sung-Hwan Jang
Nanomaterials 2024, 14(7), 632; https://doi.org/10.3390/nano14070632 - 5 Apr 2024
Viewed by 731
Abstract
The availability of carbon nanotube (CNT)-based polymer composites allows the development of surface-attached self-sensing crack sensors for the structural health monitoring of reinforced concrete (RC) structures. These sensors are fabricated by integrating CNTs as conductive fillers into polymer matrices such as polyurethane (PU) [...] Read more.
The availability of carbon nanotube (CNT)-based polymer composites allows the development of surface-attached self-sensing crack sensors for the structural health monitoring of reinforced concrete (RC) structures. These sensors are fabricated by integrating CNTs as conductive fillers into polymer matrices such as polyurethane (PU) and can be applied by coating on RC structures before the composite hardens. The principle of crack detection is based on the electrical change characteristics of the CNT-based polymer composites when subjected to a tensile load. In this study, the electrical conductivity and electro-mechanical/environmental characterization of smart skin fabricated with various CNT concentrations were investigated. This was performed to derive the tensile strain sensitivity of the smart skin according to different CNT contents and to verify their environmental impact. The optimal CNT concentration for the crack detection sensor was determined to be 5 wt% CNT. The smart skin was applied to an RC structure to validate its effectiveness as a crack detection sensor. It successfully detected and monitored crack formation and growth in the structure. During repeated cycles of crack width variations, the smart skin also demonstrated excellent reproducibility and electrical stability in response to the progressive occurrence of cracks, thereby reinforcing the reliability of the crack detection sensor. Overall, the presented results describe the crack detection characteristics of smart skin and demonstrate its potential as a structural health monitoring (SHM) sensor. Full article
(This article belongs to the Special Issue Smart Nanocomposites and Their Applications)
Show Figures

Figure 1

Back to TopTop