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Polymers
Special Issues
3D Printing of Polymer Materials
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3D Printing of Polymer Materials

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

Deadline for manuscript submissions: closed (10 April 2024) | Viewed by 2087

Special Issue Editor

Dr. Saleh Gharaie

E-Mail Website
Guest Editor
School of Engineering, Waurn Ponds Campus, Deakin University, Waurn Ponds, VIC, Australia
Interests: 3D Print; medical devices; cardiovascular engineering; soft materials

Special Issue Information

Dear Colleagues,

This Special Issue, "3D Printing of Polymer Materials", aims to spotlight the latest advancements and challenges in this rapidly evolving field. 3D-printed polymer components are gaining prominence across diverse industries, including healthcare, aerospace, and consumer goods. The issue seeks contributions that delve into polymer synthesis, characterisation, and applications tailored for 3D printing technologies. Topics of interest range from new polymer blends for 3D printing and their biomedical applications, to process optimisation and sustainability considerations. This issue aims to serve as an interdisciplinary platform for researchers and engineers to share innovations, thereby catalysing further advancements in the 3D printing of polymer materials.

Dr. Saleh Gharaie
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

  • polymer 3D printing
  • biomedical applications
  • process optimization
  • sustainability
  • advanced printing techniques
  • multi-material printing

Published Papers (3 papers)

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Research

16 pages, 7155 KiB  
Article
Simulating Elastoplastic and Anisotropic Behavior in Thermoplastic Additively Manufactured Components: An Application-Oriented Modeling Approach
by Fabian Ferrano, Miranda Fateri, Markus Merkel and Jan Hertel
Polymers 2024, 16(9), 1234; https://doi.org/10.3390/polym16091234 - 28 Apr 2024
Viewed by 337
Abstract
This paper presents a comprehensive approach aimed at developing a coupled process-structure simulation that integrates anisotropic and elastoplastic material behavior for plastic components manufactured through Fused Filament Fabrication (FFF) 3D printing. The simulation incorporates material orientation considerations, linking the process simulation with structural [...] Read more.
This paper presents a comprehensive approach aimed at developing a coupled process-structure simulation that integrates anisotropic and elastoplastic material behavior for plastic components manufactured through Fused Filament Fabrication (FFF) 3D printing. The simulation incorporates material orientation considerations, linking the process simulation with structural simulation. Subsequently, stress and strain values from the simulations are compared with the test results. Moreover, the fracture behavior of components manufactured in this way is also taken into account in relation to material orientation. The executed simulations have yielded successful outcomes, affirming the efficacy of the anisotropic and elastoplastic simulation across all strand orientations. Special attention is paid to the application of the method. Here, the simulation method introduced in this contribution with the approaches for describing the material behavior under mechanical load can be used in the future in the dimensioning of FFF manufactured plastic components to predict the deformation behavior and failure, especially under consideration of a well economic and efficient virtual product development. Full article
(This article belongs to the Special Issue 3D Printing of Polymer Materials)
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14 pages, 2860 KiB  
Article
Change in the Low-Cycle Performance on the 3D-Printed Materials ABS, ASA, HIPS, and PLA Exposed to Mineral Oil
by Marcin Głowacki, Adam Mazurkiewicz, Katarzyna Skórczewska, José Miguel Martínez Valle and Emil Smyk
Polymers 2024, 16(8), 1120; https://doi.org/10.3390/polym16081120 - 17 Apr 2024
Viewed by 469
Abstract
Three-dimensionally printed parts are increasingly used in industry for quick repairs. They are often operated in the presence of grease, oil, and others. This article describes the effect of engine mineral oil on the fatigue life of 3D-printed FDM plastic samples. For this [...] Read more.
Three-dimensionally printed parts are increasingly used in industry for quick repairs. They are often operated in the presence of grease, oil, and others. This article describes the effect of engine mineral oil on the fatigue life of 3D-printed FDM plastic samples. For this reason, this article aimed to investigate the influence of oil on the fatigue life of materials made using this technology. Samples made of ABA, ASA, PLA, and HIPS materials were printed with 100% fill. Divided into groups, they were stored for 15, 30, and 60 days in an oil bath at a room temperature of 23 °C and an increased temperature of 70 °C. To compare the effect of storage in oil, static tests were performed to determine the tensile strength of the specimens and to determine the load levels for the cyclic tests. Cyclic tests were performed to determine the effect of oil and temperature on the fatigue life. Internal structure studies of the specimens were performed using computed microtomography to determine the changes in the porosity of the specimens under the influence of oil. In the case of ABS, the oil-bathed samples showed a clear increase in the fatigue life, especially at 23 °C. For the ASA specimens, an increase was also evident, especially for the lower stress value. For HIPS and PLA, no clear effect of the oil bath on the fatigue life value of the samples was determined. Porosity studies using computed microtomography showed a clear decrease in the porosity of the samples as a result of the oil bath for all of them. Full article
(This article belongs to the Special Issue 3D Printing of Polymer Materials)
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15 pages, 16021 KiB  
Article
An Innovative Stereolithography 3D Tubular Method for Ultrathin Polymeric Stent Manufacture: The Effect of Process Parameters
by Aniol Bosch, Enric Casanova-Batlle, Iuliana Constantin, Carles Rubio, Joaquim Ciurana and Antonio J. Guerra
Polymers 2023, 15(21), 4298; https://doi.org/10.3390/polym15214298 - 1 Nov 2023
Cited by 1 | Viewed by 1050
Abstract
In the last decades, researchers have been developing bioresorbable stents (BRS) to overcome the long-term complications of drug-eluting stents (DES). However, BRS technology still presents challenging limitations in terms of manufacturing, materials, or mechanical properties. At this juncture, companies have developed ultrathin DES [...] Read more.
In the last decades, researchers have been developing bioresorbable stents (BRS) to overcome the long-term complications of drug-eluting stents (DES). However, BRS technology still presents challenging limitations in terms of manufacturing, materials, or mechanical properties. At this juncture, companies have developed ultrathin DES that may further improve the efficacy and safety profile of traditional DES by reducing the risk of target-lesion and target-vessel failures until BRS are developed. Nonetheless, the metallic platform of ultrathin DES still presents problems related to their cellular response. The use of polymers as a permanent platform in DES has not previously been studied due to the limitations of current manufacturing technologies. In this work, an innovative manufacturing method for polymeric stent production using tubular stereolithography (SLA) technology is proposed both for BRS and for ultrathin polymeric DES. The effects of manufacturing process parameters were studied by modelling the outcomes (stent thickness and strut width) with the key manufacturing variables (exposure, resin volume, and number of layers). Two different laser setups were used to compare the results. Microscopy results proved the merit of this novel tubular SLA process, which was able to obtain stents with 70 μm strut width and thickness in barely 4 min using only 0.2 mL of resin. Differential Scanning Calorimetry (DSC) results showed the stability of the manufacturing method. The results obtained with this innovative technology are promising and overcome the limitations of other previously used and available technologies. Full article
(This article belongs to the Special Issue 3D Printing of Polymer Materials)
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