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Polymers
Special Issues
Advanced Polymeric Materials in Injection Molding
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Advanced Polymeric Materials in Injection Molding

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

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 2513

Special Issue Editors

Prof. Dr. Rong-Tsu Wang

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Guest Editor
Department of Marketing and Logistics Management, Yu Da University of Science and Technology, Miaoli County 36143, Taiwan
Interests: injection molding; optimum method; smart molding technology; performance evaluation
Prof. Dr. Jung-Chang Wang

E-Mail Website
Guest Editor
Department of Marine Engineering (DME), College of Maritime Science and Management, National Taiwan Ocean University (NTOU), Jhongjheng District 202301 No. 2, Pei-Ning Road, Keelung City, Taiwan
Interests: green energy; two-Phase flow; thermal module; surface heat treatment for fins; thermo-electric nanofluids; CFD numerical method; LED lighting
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Special Issue Information

Dear Colleagues,

Jung-Chang Wang (J.-C. Wang) is a full Professor and Dean in the School of Marine Engineering (D.M.E.), National Taiwan Ocean University (NTOU), Keelung, Taiwan, and is also the Director of the Thermal-Fluid Illumination Laboratory. He received his Bachelor and Master’s degrees from National Cheng Kung University (NCKU) and Mechanical PhD from National Taiwan University (NTU) in Taiwan in 2007. He has been teaching and researching on electronic heat transfer and renewable energy for more than ten years. He has published more than 100 research papers in international journals, conferences and patents, and edited seven book chapters. His main research interests include applied and software engineering in thermal-fluid science.

The application of polymer-based materials in injection molding are playing a key role in the fine dimensional configuration of margin tolerance, which is a major, convertible manufacturing method for mass-producing multiplex plastic units. Currently, new material applications and new processes cover the synthesis, structure, and properties of polymers and composites, within the rapidly developing worldwide field of intelligent manufacturing. Therefore, modulation of the polymer-based materials with functionalized relative devices is achieved in injection molding and its combined processes, mold design and analysis, engineering simulations, and artificial intelligence, etc. The main purpose is to improve the quality, efficiency, flexibility, and/or energy saving of the production process, as well as to enhance the quality and performance of the products.

Prof. Dr. Rong-Tsu Wang
Prof. Dr. Jung-Chang Wang
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

  • injection molding
  • hybrid molding
  • polymer blend fibbers composites
  • mold design and simulation
  • synthesis of polymer composites for energy applications
  • mucell molding
  • polymers for energy storage
  • smart molding technology

Published Papers (1 paper)

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Research

23 pages, 22659 KiB  
Article
Optimization of 3D Cooling Channels in Plastic Injection Molds by Taguchi-Integrated Principal Component Analysis (PCA)
by Pham Son Minh, Hung-Son Dang and Nguyen Canh Ha
Polymers 2023, 15(5), 1080; https://0-doi-org.brum.beds.ac.uk/10.3390/polym15051080 - 21 Feb 2023
Cited by 10 | Viewed by 1942
Abstract
Injection molding has become an increasingly widely used method in the production of plastic parts. The injection process can be separated into five steps: mold closure, filling, packing, cooling, and product ejection. Before the melted plastic is loaded into the mold, the mold [...] Read more.
Injection molding has become an increasingly widely used method in the production of plastic parts. The injection process can be separated into five steps: mold closure, filling, packing, cooling, and product ejection. Before the melted plastic is loaded into the mold, the mold needs to be raised to a specified temperature, in order to increase the mold’s filling capacity and improve the resultant product quality. One of the easy methods used to control a mold’s temperature is to provide hot water through a cooling channel in the mold, to raise the temperature. In addition, this channel can be used for cooling the mold with cool fluid. This is simple, effective, and cost efficient, involving uncomplicated products. To improve the heating effectiveness of the hot water, a conformal cooling-channel design is considered in this paper. Through heat-transfer simulation using the CFX module in the Ansys software, an optimal cooling channel was defined according to the simulation result, using the Taguchi method integrated with principal component analysis. The comparison of traditional vs. conformal cooling channels revealed higher temperature rises in the first 100 s in both molds. During heating, conformal cooling produced higher temperatures compared with traditional cooling. Conformal cooling demonstrated better performance, with average temperature peaking at 58.78 °C and a range of 63.4 °C (max) to 54.66 °C (min). Traditional cooling resulted in an average steady-state temperature of 56.63 °C and a range of 61.74 °C (max) to 53.18 °C (min). Finally, the simulation results were verified experimentally. Full article
(This article belongs to the Special Issue Advanced Polymeric Materials in Injection Molding)
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