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Polymers
Special Issues
High-Performance Polymer-Based 3D Printing Composites
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High-Performance Polymer-Based 3D Printing 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 (25 April 2023) | Viewed by 6956

Special Issue Editors

Dr. Apostolos Korlos

E-Mail Website
Guest Editor
Department of Industrial Engineering and Management, International Hellenic University, 57400 Sindos, Greece
Interests: manufacturing technologies; additive manufacturing; advanced materials; machining processes; materials testing and characterization CAD/CAM/CAE; reverse engineering; FEM simulation
Special Issues, Collections and Topics in MDPI journals
Dr. Konstantinos Tsongas

E-Mail Website
Guest Editor
Department of Industrial Engineering and Management, International Hellenic University, 57400 Sindos, Greece
Interests: toughening; epoxy resins; mechanical properties; microstructure; electroless deposition
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Additive manufacturing (AM), popularly known as 3D printing, is an innovative technology providing improvements in rapid prototyping, new possibilities in functional design, and distributed and point-of-need manufacturing. It is being extensively used for applications in many fields including aerospace, automotive, medical, etc. The development of new AM-compatible materials is critical to meet the need for high-performance functional parts fabricated with AM. With the quick development of state-of-the-art AM technologies, a wide range of materials such as polymers and nanocomposite polymers are being studied for the fabrication of functional parts.

While it has taken a lot of time and cost to fabricate composite materials structures in traditional production processes, additive manufacturing is very helpful in overcoming these limitations based on structural complexity. However, there are still very limited cases of composite material printing and its practical application in industry. Therefore, in this Special Issue, we are going to deal with research cases based on various functional materials and composite materials, such as micro- or nanomaterial-reinforced matrix composites for diverse industrial applications.

Prof. Dr. Apostolos Korlos
Dr. Konstantinos Tsongas
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. 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

  • polymers composites
  • additive manufacturing
  • 3D printing
  • design for additive manufacturing
  • nanomaterials
  • material characterization for additive manufacturing
  • medical applications of additive manufacturing

Published Papers (3 papers)

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Research

11 pages, 4403 KiB  
Article
Strong and Lightweight Stereolithographically 3D-Printed Polymer Nanocomposites with Low Friction and High Toughness
by Manuel Alejandro Ávila-López, José Bonilla-Cruz, Juan Méndez-Nonell and Tania Ernestina Lara-Ceniceros
Polymers 2022, 14(17), 3628; https://doi.org/10.3390/polym14173628 - 02 Sep 2022
Cited by 3 | Viewed by 1642
Abstract
Strong and lightweight polymer nanocomposites with low friction, high toughness, and complex shapes were obtained for the first time through an affordable stereolithographic 3D printer, using low amounts of TiO2 nanoparticles. Tridimensional solid structures (i.e., tensile bars, compressive test specimens, gyroid-type structures, [...] Read more.
Strong and lightweight polymer nanocomposites with low friction, high toughness, and complex shapes were obtained for the first time through an affordable stereolithographic 3D printer, using low amounts of TiO2 nanoparticles. Tridimensional solid structures (i.e., tensile bars, compressive test specimens, gyroid-type structures, and dense lattices) were obtained. Herein, we found that the compressive stress, compressive strain, yield strength, and toughness corresponding to 3D-printed polymer nanocomposites were simultaneously increased—which is uncommon—using low amounts (0.4 wt.%) of TiO2 nanoparticles. Furthermore, we obtained lightweight cylindrical structures exhibiting high resistance to compression with a low friction coefficient (µ~0.2), and the printability of complex and hollow structures was demonstrated. Full article
(This article belongs to the Special Issue High-Performance Polymer-Based 3D Printing Composites)
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20 pages, 7294 KiB  
Article
Friction Stir Welding Optimization of 3D-Printed Acrylonitrile Butadiene Styrene in Hybrid Additive Manufacturing
by Nectarios Vidakis, Markos Petousis, Apostolos Korlos, Nikolaos Mountakis and John D. Kechagias
Polymers 2022, 14(12), 2474; https://doi.org/10.3390/polym14122474 - 17 Jun 2022
Cited by 20 | Viewed by 2166
Abstract
The feasibility of joining material extrusion (MEX) 3D-printed acrylonitrile butadiene styrene (ABS) plates with the friction stir welding (FSW) process was investigated herein as a promising topic of hybrid additive manufacturing (HAM). The influence of three process parameters on the mechanical strength of [...] Read more.
The feasibility of joining material extrusion (MEX) 3D-printed acrylonitrile butadiene styrene (ABS) plates with the friction stir welding (FSW) process was investigated herein as a promising topic of hybrid additive manufacturing (HAM). The influence of three process parameters on the mechanical strength of the joints was thoroughly examined and analyzed with a full factorial experimental design and statistical modeling. Hereto, the welding tool pin geometry, travel speed, and rotational speed were investigated. The joint’s efficiency and quality are evaluated through tensile tests and morphological characterization. More specifically, specimens’ areas of particular interest were investigated with stereoscopic, optical, and scanning electron microscopy. Throughout the FSW experimental course, the welding temperature was monitored to evaluate the state of the ABS material during the process. The majority of the welded specimens exhibited increased mechanical strength compared with the respective ones of non-welded 3D printed specimens of the same geometry. Statistical modeling proved that all processing parameters were significant. The feasibility of the FSW process in 3D printed ABS workpieces was confirmed, making the FSW a cost-effective process for joining 3D printing parts, further expanding the industrial merit of the approach. Full article
(This article belongs to the Special Issue High-Performance Polymer-Based 3D Printing Composites)
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24 pages, 10863 KiB  
Article
Multi-Functional 3D-Printed Vat Photopolymerization Biomedical-Grade Resin Reinforced with Binary Nano Inclusions: The Effect of Cellulose Nanofibers and Antimicrobial Nanoparticle Agents
by Nectarios Vidakis, Markos Petousis, Nikolaos Michailidis, Vassilis Papadakis, Apostolos Korlos, Nikolaos Mountakis and Apostolos Argyros
Polymers 2022, 14(9), 1903; https://doi.org/10.3390/polym14091903 - 06 May 2022
Cited by 12 | Viewed by 2623
Abstract
This study introduced binary nanoparticle (NP) inclusions into a biomedical-grade photosensitive resin (Biomed Clear-BC). Multi-functional, three-dimensional (3D) printed objects were manufactured via the vat photopolymerization additive manufacturing (AM) technique. Cellulose nanofibers (CNFs) as one dimensional (1D) nanomaterial have been utilized for the mechanical [...] Read more.
This study introduced binary nanoparticle (NP) inclusions into a biomedical-grade photosensitive resin (Biomed Clear-BC). Multi-functional, three-dimensional (3D) printed objects were manufactured via the vat photopolymerization additive manufacturing (AM) technique. Cellulose nanofibers (CNFs) as one dimensional (1D) nanomaterial have been utilized for the mechanical reinforcement of the resin, while three different spherical NPs, namely copper NPs (nCu), copper oxide NPs (nCuO), and a commercial antimicrobial powder (nAP), endowed the antimicrobial character. The nanoparticle loading was kept constant at 1.0 wt.% to elucidate any synergistic effects as a function of the filler loading. Raman, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) revealed the chemical/spectroscopic and thermal properties of the different manufactured samples. Scanning electron microscopy and Atomic Force Microscopy (AFM) revealed the morphology of the samples. Mechanical properties revealed the reinforcement mechanisms, namely that BC/CNF (1.0 wt.%) exhibited a 102% and 154% enhancement in strength and modulus, respectively, while BC/CNF(1.0 wt.%)/AP(1.0 wt.%) exhibited a 95% and 101% enhancement, as well as an antibacterial property, which was studied using a screening agar well diffusion method. This study opens the route towards novel, multi-functional materials for vat photopolymerization 3D printing biomedical applications, where mechanical reinforcement and antibacterial performance are typically required in the operational environment. Full article
(This article belongs to the Special Issue High-Performance Polymer-Based 3D Printing Composites)
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