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Carbon Nanotube Nanocomposites: Modeling and Applications
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Carbon Nanotube Nanocomposites: Modeling and Applications

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: closed (31 July 2019) | Viewed by 17941

Special Issue Editor

Dr. Vincenzo Tucci

E-Mail Website
Guest Editor
Department of Information and Electrical Engineering and Applied Mathematics (DIEM), University of Salerno, via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy
Interests: nanomaterials; nanotechnology; electromagnetic properties; numerical modeling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, polymer nanocomposites based on Carbon Nanotubes (CNTs) have gained a great amount of attention in the research and industrial communities given the enhanced properties provided by reinforcement with carbon nanostructures. In fact, the very low weight percentages of CNTs included in the polymer matrix, due to the extremely large interface surface area, can create new lightweight materials with desired structures and functionalities. The properties strongly depend on various factors among, which include the nature of the matrix, the filler functionalitization, the fabrication process parameters, etc. To study the influence of these factrors, continuous research efforts are needed to solve many critical issues that remain to be solved.

The forthcoming Special Issue “Carbon Nanotube Nanocomposites: Modeling and Applications” aims to collect and publish original research manuscripts that either add knowledge to our current understanding on the modeling and characterization of morphological, thermal, mechanical, and electrical properties of nanocomposites or report new applications of these very promising materials. Critical reviews are also welcome.

It is my pleasure to invite you, as a renowned expert in this field, to provide a valuable contribution to this Special Issue.

Prof. Dr. Vincenzo Tucci
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. Materials 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 2600 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 nanocomposites
  • modeling of CNTs-based nanocomposites
  • characterization of nanocomposites
  • thermal, mechanical, and electrical properties and relation with nanocomposites structures
  • applications of CNTs-based nanocomposites

Published Papers (5 papers)

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Research

20 pages, 7227 KiB  
Article
Nanocarbon/Poly(Lactic) Acid for 3D Printing: Effect of Fillers Content on Electromagnetic and Thermal Properties
by Giovanni Spinelli, Patrizia Lamberti, Vincenzo Tucci, Rumiana Kotsilkova, Evgeni Ivanov, Dzhihan Menseidov, Carlo Naddeo, Vittorio Romano, Liberata Guadagno, Renata Adami, Darya Meisak, Dzmitry Bychanok and Polina Kuzhir
Materials 2019, 12(15), 2369; https://doi.org/10.3390/ma12152369 - 25 Jul 2019
Cited by 42 | Viewed by 4202
Abstract
Electromagnetic and thermal properties of a non-conventional polymer nanocomposite based on thermoplastic Polylactic acid (PLA, Ingeo™) filled, in different weight percentage, with multi-walled carbon nanotubes (MWCNTs), graphene nanoplatelets (GNPs), as well as a mixture of both fillers (MWCNTs/GNPs), are analyzed. The combination of [...] Read more.
Electromagnetic and thermal properties of a non-conventional polymer nanocomposite based on thermoplastic Polylactic acid (PLA, Ingeo™) filled, in different weight percentage, with multi-walled carbon nanotubes (MWCNTs), graphene nanoplatelets (GNPs), as well as a mixture of both fillers (MWCNTs/GNPs), are analyzed. The combination of notable electrical, thermal, and electromagnetic (EM) properties of the carbon fillers, in concentrations above the percolation threshold, together with the good processability of the PLA matrix gives rise to innovative filaments for 3D printing. In particular, the shielding efficiency (SE) in the frequency range 26–37 GHz of samples increases from 0.20 dB of unfilled PLA up to 13.4 dB for composites containing MWCNTs and GNPs, corresponding to 4% and 95% of SE, respectively. The thermal conductivity of the PLA loaded with 12 wt % of GNPs is 263% higher than that of the unfilled polymer, whereas an improvement of about 99% and 190% is detected for the PLA matrix loaded with MWCNTs and both fillers, respectively. The EM and thermal characterization is combined with a morphological investigation allowing us to correlate the dispersion states of the fillers within the polymer matrix with the observed EM and thermal properties. The EM and thermal characteristics exhibited by the nanocomposites make them suitable for packaging applications of electronic devices with electromagnetic interference (EMI) shielding and thermal dissipation features. Full article
(This article belongs to the Special Issue Carbon Nanotube Nanocomposites: Modeling and Applications)
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13 pages, 3900 KiB  
Article
Structural Properties and Damage Detection Capability of Carbon Nanotube Modified Mortars after Freeze-Thaw
by Panagiota Alafogianni, Ilias Tragazikis, Anastasios Balaskas and Nektaria-Marianthi Barkoula
Materials 2019, 12(11), 1747; https://doi.org/10.3390/ma12111747 - 29 May 2019
Cited by 8 | Viewed by 2238
Abstract
Here we explore the structural properties and damage sensing of cementitious mortars after a freeze-thaw process (F-T) as a function of nano-modification. For this purpose, carbon nanotubes were added at 0.2–0.8 wt.% cement using two different dispersive agents. F-T resulted in reduced fracture [...] Read more.
Here we explore the structural properties and damage sensing of cementitious mortars after a freeze-thaw process (F-T) as a function of nano-modification. For this purpose, carbon nanotubes were added at 0.2–0.8 wt.% cement using two different dispersive agents. F-T resulted in reduced fracture energy in nano-modified specimens prepared using superplasticizer as a dispersant while the opposite held true for the surfactant-containing ones. All nano-modified mortars possessed significantly higher fracture energy compared to the plain specimens after F-T (up to 73% improvement). The acoustic emission activity was lower after F-T, while acoustic emission indicators revealed a more tensile mode of fracture in both plain and nano-modified mortars. Full article
(This article belongs to the Special Issue Carbon Nanotube Nanocomposites: Modeling and Applications)
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26 pages, 10548 KiB  
Article
Three-Dimensional Nano-Morphology of Carbon Nanotube/Epoxy Filled Poly(methyl methacrylate) Microcapsules
by M. Galip Icduygu, Meltem Asilturk, M. Akif Yalcinkaya, Youssef K. Hamidi and M. Cengiz Altan
Materials 2019, 12(9), 1387; https://doi.org/10.3390/ma12091387 - 29 Apr 2019
Cited by 27 | Viewed by 2975
Abstract
The three-dimensional nano-morphology of poly(methyl methacrylate; PMMA) microcapsules filled with carbon nanotubes (CNTs) and epoxy resin were investigated by various microscopy methods, including a novel, laser scanning confocal microscopy (LSCM) method. Initially, PMMA microcapsules containing various amounts of CNTs were synthesized by a [...] Read more.
The three-dimensional nano-morphology of poly(methyl methacrylate; PMMA) microcapsules filled with carbon nanotubes (CNTs) and epoxy resin were investigated by various microscopy methods, including a novel, laser scanning confocal microscopy (LSCM) method. Initially, PMMA microcapsules containing various amounts of CNTs were synthesized by a solvent evaporation method. Scanning electron microscopy analysis showed that pore-free, smooth-surface microcapsules formed with various types of core-shell morphologies. The average size of CNT/epoxy/PMMA microcapsules was shown to decrease from ~52 μm to ~15 μm when mixing speed during synthesis increased from 300 rpm to 1000 rpm. In general, the presence of CNTs resulted in slightly larger microcapsules and higher variations in size. Moreover, three-dimensional scans obtained from confocal microscopy revealed that higher CNT content increased the occurrence and size of CNT aggregates inside the microcapsules. Entrapped submicron air bubbles were also observed inside most microcapsules, particularly within those with higher CNT content. Full article
(This article belongs to the Special Issue Carbon Nanotube Nanocomposites: Modeling and Applications)
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19 pages, 3859 KiB  
Article
Multifunctional Performance of a Nano-Modified Fiber Reinforced Composite Aeronautical Panel
by Maurizio Arena, Massimo Viscardi, Giuseppina Barra, Luigi Vertuccio and Liberata Guadagno
Materials 2019, 12(6), 869; https://doi.org/10.3390/ma12060869 - 15 Mar 2019
Cited by 20 | Viewed by 3108
Abstract
The adoption of multifunctional flame-resistant composites is becoming increasingly attractive for many components of aircrafts and competition cars. Compared to conventional alloy solutions, the reduced weight and corrosion resistance are only a couple of the relevant advantages they can offer. In this paper, [...] Read more.
The adoption of multifunctional flame-resistant composites is becoming increasingly attractive for many components of aircrafts and competition cars. Compared to conventional alloy solutions, the reduced weight and corrosion resistance are only a couple of the relevant advantages they can offer. In this paper, a carbon fiber reinforced panel (CFRP) was impregnated with an epoxy resin enhanced using a combination of 0.5 wt% of carbon nanotubes (CNTs) and 5 wt% of Glycidyl-Polyhedral Oligomeric Silsesquioxanes (GPOSS). This formulation, which is peculiar to resins with increased electrical conductivity and flame-resistance properties, has been employed for manufacturing a carbon fiber reinforced panel (CFRP) composed of eight plies through a liquid infusion technique. Vibro-acoustic tests have been performed on the panel for the characterization of the damping performance, as well the transmission loss properties related to micro-handling treatments. The spectral excitation has been provided by an acoustic source simulating the aerodynamic pressure load agent on the structure. The incorporation of multi-walled carbon nanotubes MWCNTs in the epoxy matrix determines a non-trivial improvement in the dynamic performance of the laminate. An increased damping loss factor with reference to standard CFRP laminate and also an improvement of the sound insulation parameter was found for the specific test article. Full article
(This article belongs to the Special Issue Carbon Nanotube Nanocomposites: Modeling and Applications)
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17 pages, 3929 KiB  
Article
Morphological, Rheological and Electromagnetic Properties of Nanocarbon/Poly(lactic) Acid for 3D Printing: Solution Blending vs. Melt Mixing
by Giovanni Spinelli, Patrizia Lamberti, Vincenzo Tucci, Rumiana Kotsilkova, Sonia Tabakova, Radost Ivanova, Polya Angelova, Verislav Angelov, Evgeni Ivanov, Rosa Di Maio, Clara Silvestre, Darya Meisak, Alesia Paddubskaya and Polina Kuzhir
Materials 2018, 11(11), 2256; https://doi.org/10.3390/ma11112256 - 13 Nov 2018
Cited by 37 | Viewed by 5019
Abstract
The limitation of poor mechanical stability and difficulties in printing electrically conductive components can be overcome owing to the recent introduction of nanotechnology into the field of additive manufacturing (AM) and the consequent development of nonconventional polymer nanocomposites suitable for 3D printing. In [...] Read more.
The limitation of poor mechanical stability and difficulties in printing electrically conductive components can be overcome owing to the recent introduction of nanotechnology into the field of additive manufacturing (AM) and the consequent development of nonconventional polymer nanocomposites suitable for 3D printing. In the present work, different weight percentages (up to 6 wt % in total) of carbon-based nanostructures—multiwalled carbon nanotubes (MWCNTs), graphene nanoplatelets (GNPs), and a combination of both fillers (MWCNTs/GNPs)—were incorporated into poly(lactic) acid (PLA, Ingeo™) in an attempt to overcome several limitations of conventional 3D manufacturing based on insulating materials. Solution blending and melt mixing were the two fabrication methods adopted for preparation of the samples under test. A comparison of the morphological, rheological, and electrical properties of the resulting nanocomposites was carried out. Moreover, for the same weight concentrations, the influence of physical and geometrical features (i.e., functionalization and aspect ratio) of the embedded fillers was also investigated. Rheological methods were applied to control the quality of fillers dispersion in PLA matrix. The rheological percolation threshold was considered as reference in order to evaluate the internal structure of nanodispersions. TEM visualization, combined with rheological characterizations, was used for efficient control of the nanofiller dispersion. DC characterization revealed that lower electrical percolation thresholds and higher values of electrical conductivity were achieved using fillers with a larger aspect ratio and melt mixing, respectively. Moreover, given the possibility of obtaining complex and appropriate shapes for electromagnetic compatibility (EC) applications, electromagnetic (EM) response of the nanocomposites at the highest filler concentration was investigated in GHz and THz regions. It was found that the electromagnetic shielding efficiency (EMI) of nanocomposites strongly depended on the aspect ratio of the nanofillers, whereas the type of processing technique did not have a significant effect. Therefore, a careful choice of methods and materials must be made to address the final application for which these materials and further 3D printed architectures are designed. Full article
(This article belongs to the Special Issue Carbon Nanotube Nanocomposites: Modeling and Applications)
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