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Polymers
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Times of Polymers (TOP) and Composites
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Times of Polymers (TOP) and Composites

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

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 6589

Special Issue Editors

Prof. Dr. Alberto D’Amore

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Guest Editor
Department of Engineering, University of Campania “Luigi Vanvitelli”, Via Roma 19, 81031 Aversa, Italy
Interests: viscoelasticity; polymer processing; fatigue; nanocomposites; structural modeling; residual stresses; damage mechanics
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Domenico Acierno

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Guest Editor
CRdC Nuove Tecnologie per le Attività Produttive Scarl, 11 - 80125 Naples, Italy
Interests: composites; materials; polymeric materials; materials engeering; polymers; polymerization; material charaterization; nanoparticles; nanomaterials; biomaterials
Prof. Dr. Giuseppe Mensitieri

E-Mail Website
Guest Editor
Department of Chemical Engineering, of Materials and Industrial Production, University Federico II, Piazzale Tecchio 1, 80125 Napoli, Italy
Interests: sorption thermodynamics in polymers; mass transport in polymers; polymer durability; barrier materials; equation of state theories for polymer; polymer nanocomposites; polymeric packaging; polymer membranes
Dr. Luigi Grassia

E-Mail Website
Guest Editor
Department of Engineering, Università della Campania “Luigi Vanvitelli”, Via Roma 19, 81031 Aversa, Italy
Interests: polymers; glass transition; viscoelasticity; physical aging; constitutive equation; relaxation; thin films
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue collects a selection of communications presented at the “Times of Polymers (TOP) and Composites” conference (Ischia-Italy , 7–11 June 2020) (https://www.topconference.it/). The different timescales relevant in the description of the behavior of polymers and composites is a key concept in the analysis of processing techniques of this class of materials, and the development of their structure and properties and is of great interest for the chemistry, physics, and materials engineering communities. Therefore, the scientific sessions and contributions to this Special Issue shall span from fundamental science to industry-relevant subjects and from the molecular to the macro length scales. The Conference and this Special Issue will collect contributions on the following topics:

  • Composites;
  • Nanocomposites;
  • Polymer chemistry;
  • Biomaterials;
  • Rheology;
  • Glass transition;
  • Soft materials;
  • Nanoconfined polymers;
  • Sensors;
  • Processing;
  • Durability.

It is our pleasure to invite all of the participants to the X Times of Polymers (TOP) and Composites conference to submit a manuscript for this Special Issue. Papers from invited lectures, keynote lectures, oral communications, and posters are all welcome.

Please note that all submissions are subject to a 30% discount.

Prof. Dr. Alberto D’Amore
Prof. Dr. Domenico Acierno
Prof. Dr. Giuseppe Mensitieri
Dr. Luigi Grassia
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.

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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Research

17 pages, 6734 KiB  
Communication
Fabrication of High-Performance CNT Reinforced Polymer Composite for Additive Manufacturing by Phase Inversion Technique
by Pooyan Parnian and Alberto D’Amore
Polymers 2021, 13(22), 4007; https://doi.org/10.3390/polym13224007 - 19 Nov 2021
Cited by 19 | Viewed by 2924
Abstract
Additive Manufacturing (AM) of polymer composites has enabled the fabrication of highly customized parts with notably mechanical properties, thermal and electrical conductivity compared to un-reinforced polymers. Employing the reinforcements was a key factor in improving the properties of polymers after being 3D printed. [...] Read more.
Additive Manufacturing (AM) of polymer composites has enabled the fabrication of highly customized parts with notably mechanical properties, thermal and electrical conductivity compared to un-reinforced polymers. Employing the reinforcements was a key factor in improving the properties of polymers after being 3D printed. However, almost all the existing 3D printing methods could make the most of disparate fiber reinforcement techniques, the fused filament fabrication (FFF) method is reviewed in this study to better understand its flexibility to employ for the proposed novel method. Carbon nanotubes (CNTs) as a desirable reinforcement have a great potential to improve the mechanical, thermal, and electrical properties of 3D printed polymers. Several functionalization approaches for the preparation of CNT reinforced composites are discussed in this study. However, due to the non-uniform distribution and direction of reinforcements, the properties of the resulted specimen do not change as theoretically expected. Based on the phase inversion method, this paper proposes a novel technique to produce CNT-reinforced filaments to simultaneously increase the mechanical, thermal, and electrical properties. A homogeneous CNT dispersion in a dilute polymer solution is first obtained by sonication techniques. Then, the CNT/polymer filaments with the desired CNT content can be obtained by extracting the polymer’s solvent. Furthermore, optimizing the filament draw ratio can result in a reasonable CNT orientation along the filament stretching direction. Full article
(This article belongs to the Special Issue Times of Polymers (TOP) and Composites)
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9 pages, 1953 KiB  
Article
Highlighting Thermo-Elastic Effects in Confined Fluids
by Eni Kume, Patrick Baroni and Laurence Noirez
Polymers 2021, 13(14), 2378; https://doi.org/10.3390/polym13142378 - 20 Jul 2021
Cited by 1 | Viewed by 2720
Abstract
The recent identification of a finite shear elasticity in mesoscopic fluids has motivated the search of other solid-like properties of liquids. We present an innovative thermal approach of liquids. We identify a dynamic thermo-elastic mesoscopic behavior by building the thermal image produced by [...] Read more.
The recent identification of a finite shear elasticity in mesoscopic fluids has motivated the search of other solid-like properties of liquids. We present an innovative thermal approach of liquids. We identify a dynamic thermo-elastic mesoscopic behavior by building the thermal image produced by different liquids upon applying a low frequency mechanical shear field. We selected three fluids: a low molecular weight polybutylacrylate (PBuA), polypropyleneglycol (PPG), and glycerol. We demonstrate that a part of the energy of the shear strain is converted in cold and hot shear bands varying synchronously with the applied shear field. This thermodynamic change suggests a coupling to shear elastic modes in agreement with the low frequency shear elasticity theoretically foreseen and experimentally demonstrated. Full article
(This article belongs to the Special Issue Times of Polymers (TOP) and Composites)
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