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Additively Manufactured Polymers: Design, Testing and Applications

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

Deadline for manuscript submissions: closed (30 September 2024) | Viewed by 1953

Special Issue Editors


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Guest Editor
Centre for Life-Cycle Engineering and Management, Cranfield University, College Road, Cranfield MK43 0AL, UK
Interests: damage mechanics; maintenance engineering; asset management
Special Issues, Collections and Topics in MDPI journals
Centre for Life-Cycle Engineering and Management, Cranfield University, College Road, Cranfield MK43 0AL, UK
Interests: additively manufactured polymers; fracture mechanics; structural health monitoring; mechanical vibrations
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The evolution of polymeric materials over the last decade has led to the establishment of advanced and state-of-the-art manufacturing techniques for both the present and the future. One of these techniques, which has revolutionised the art, science, and engineering of polymers and polymer composites, is additive manufacturing. The increased demand for complex and lightweight structures synthesised with lower development costs has resulted in an unprecedented rise in the use of additive manufacturing for developing polymeric components and structures. However, this demand and rise has led to new challenges in their design, testing, and applications. Therefore, an awareness of these challenges and the dissemination of new findings are very important for both the academic and industrial domains. Keeping this in mind, this Special Issue has been launched to collect papers on additively manufactured polymers and polymer composites.

We encourage authors to submit papers related to additively manufactured polymers and polymer composite design, testing, and applications. This Special Issue aims to determine the current state of the art in polymers and polymer composites designed through additive manufacturing, their properties, and their effectiveness in real-world applications. We are seeking papers focusing on (but not limited to) the following areas in additively manufactured polymers:

  1. General design.
  2. Testing behaviour and mechanics.
  3. Failure and damage analysis.
  4. Applications.
  5. Design as functional and smart materials.
  6. Optimisation in design and processing.

Dr. Muhammad Khan
Dr. Feiyang He
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.

Keywords

  • additive manufacturing
  • polymer and polymer composite
  • design, testing and failure
  • damage diagnostics
  • smart polymers
  • functional polymers

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Published Papers (2 papers)

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Research

11 pages, 7113 KiB  
Article
In Situ Fluorescent Visualization of the Interfacial Layer of Induced Crystallization in Polyvinyl Chloride
by Zhihang An, Renping Liu, Zhenhao Dai, Jiaping Liu, Jiaying Du, Zhongyi Sheng and Heyang Liu
Polymers 2024, 16(22), 3147; https://doi.org/10.3390/polym16223147 - 12 Nov 2024
Viewed by 507
Abstract
Despite the remarkable progress in the modification and application of polyvinyl chloride (PVC), developing processing aids for the induced crystallization of PVC and characterizing its interfacial layer remain challenges. Herein, we propose a new polymeric nucleating agent, polyamidea12-graft-styrene–maleic anhydride copolymer (PA12-g-SMA), which possesses [...] Read more.
Despite the remarkable progress in the modification and application of polyvinyl chloride (PVC), developing processing aids for the induced crystallization of PVC and characterizing its interfacial layer remain challenges. Herein, we propose a new polymeric nucleating agent, polyamidea12-graft-styrene–maleic anhydride copolymer (PA12-g-SMA), which possesses high compatibility and crystallinity, effectively improving the crystallinity to 15.1%, the impact strength to 61.03 kJ/m2, and the degradation temperature of PVC to 267 °C through a single and straightforward processing step. Additionally, after the introduction of two different fluorescent sensors in PA12-g-SMA and PVC, the interfacial layer of the induced crystallization can be monitored in situ via a confocal laser scanning microscope (CLSM). This study highlights a rare strategy for significantly enhancing the physical properties of rigid PVC through simply adding a polymeric nucleating agent during processing, while also emphasizing the importance of visualizing the interfacial layer to understand various polymer crystallization processes. Full article
(This article belongs to the Special Issue Additively Manufactured Polymers: Design, Testing and Applications)
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20 pages, 10901 KiB  
Article
Flexural Behavior of 3D-Printed Carbon Fiber-Reinforced Nylon Lattice Beams
by Muhammet Muaz Yalçın
Polymers 2024, 16(21), 2991; https://doi.org/10.3390/polym16212991 - 25 Oct 2024
Viewed by 611
Abstract
This study investigates the flexural behavior of 3D-printed multi-topology lattice beams, with a specific emphasis on octet and cube lattice geometries created through fused deposition modeling (FDM). The mechanical properties of these beams were evaluated through quasi-static three-point bending tests. A comparative analysis [...] Read more.
This study investigates the flexural behavior of 3D-printed multi-topology lattice beams, with a specific emphasis on octet and cube lattice geometries created through fused deposition modeling (FDM). The mechanical properties of these beams were evaluated through quasi-static three-point bending tests. A comparative analysis of load-carrying capacity, energy absorption, and specific energy absorption (SEA) indicates that octet lattice beams exhibit superior performance to cube lattice beams. The octet lattice beam in the triple-layer double-column (TL-DC) arrangement absorbed 14.99 J of energy, representing a 38% increase compared to the 10.86 J absorbed by the cube lattice beam in the same design. The specific energy absorption (SEA) of the octet beam was measured at 0.39 J/g, which exceeds the 0.29 J/g recorded for the cube beam. Two distinct types of deformations were identified for the struts and the beam layers. Octet struts exhibit enhanced performance in stretch-dominated zones, whereas the cube system demonstrates superior efficacy in compressive-dominated regions. The results highlight the enhanced efficacy of octet lattice structures in energy absorption and mechanical stability maintenance. The investigation of sandwich lattice topologies integrating octet and cube structures indicates that while hybrid designs may exhibit efficiency, uniform octet structures yield superior performance. This study provides valuable insights into the structural design and optimization of lattice systems for applications requiring high-energy absorption and mechanical robustness. Full article
(This article belongs to the Special Issue Additively Manufactured Polymers: Design, Testing and Applications)
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