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J. Compos. Sci.
Special Issues
Trends and Challenges in Developing and Processing Composite Materials
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Trends and Challenges in Developing and Processing Composite Materials

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Composites Manufacturing and Processing".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 3219

Special Issue Editor

Prof. Dr. Heitor Luiz Ornaghi Júnior

E-Mail Website
Guest Editor
Postgraduate Program in Technology and Materials Engineering (PPGTEM), Federal Institute of Education, Science and Technology of Rio Grande do Sul (IFRS), R. Princesa Isabel, 60, Feliz 95770-000, RS, Brazil
Interests: composites; creep; physical-chemistry; relaxation processes; artificial neural networks; hybrid composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, significant attention has been paid to composite materials due to escalating concerns regarding the environment, performance, quality and so forth. It is clear that tailor-made materials that offer ecological efficiency, green chemistry, renewable resources, sustainable manufacturing, and high performance are key to the development of novel fabrication methods and processing and characterization techniques that offset the use of conventional composites.

We thus invite researchers to contribute original research and review articles that will enhance our basic knowledge of the subject and lead to the development of novel technologies and innovations in this field. We are particularly interested in articles that describe new or modified processes for the development/ production/characterization of composites materials.

I look forward to receiving your contributions.

Prof. Dr. Heitor Luiz Ornaghi Júnior
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. Journal of Composites Science is an international peer-reviewed open access monthly 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 1800 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

  • high-performance resin
  • carbon fiber-based materials
  • lightweighting
  • advanced polymer composites
  • biomaterials
  • nanocomposites
  • smart metal composites
  • additive manufacturing
  • circular material economy
  • intelligent design and manufacturing

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Published Papers (3 papers)

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Research

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14 pages, 5278 KiB  
Article
Microwave Synthesis of Luminescent Recycled Glass Containing Dy2O3 and Sm2O3
by Achanai Buasri, Apichaya Boonpanya, Arraya Yangderm, Thanaporn Kensopha and Vorrada Loryuenyong
J. Compos. Sci. 2025, 9(2), 64; https://doi.org/10.3390/jcs9020064 (registering DOI) - 1 Feb 2025
Viewed by 405
Abstract
This research studied the recycling of borosilicate glass wastes from damaged laboratory glassware. The luminescent glasses were prepared by doping glass waste powder with rare earth ions, namely, dysprosium ions (Dy3+) and samarium ions (Sm3+), as well as co-doping [...] Read more.
This research studied the recycling of borosilicate glass wastes from damaged laboratory glassware. The luminescent glasses were prepared by doping glass waste powder with rare earth ions, namely, dysprosium ions (Dy3+) and samarium ions (Sm3+), as well as co-doping with Dy3+ and Sm3+ at a concentration of 2% by weight. The sintering process was conducted in a microwave oven for a duration of 15 min. The photoluminescence spectra of the doped glasses were obtained under excitation at 401 nm and 388 nm. The results showed that the emission characteristics depended on the doping concentrations of Dy3+ and Sm3+ and the excitation wavelengths. Upon excitation at 401 nm, the co-doped glasses exhibited the maximum emission peak of Sm3+ at 601 nm (yellowish and orange region in the CIE chromaticity diagram) due to the energy transition from 4G5/2 to 6H7/2. When excited at 388 nm, however, the emission spectra of the co-doped glasses were similar to the characteristic emission peaks of Dy3+ (white region in the CIE chromaticity diagram), but the peak position exhibits a red shift. This could be attributed to an increase in the amount of non-bridging oxygens (NBOs) by co-doping. Full article
(This article belongs to the Special Issue Trends and Challenges in Developing and Processing Composite Materials)
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10 pages, 2602 KiB  
Article
Endothermic–Exothermic Hybrid Foaming of Recycled PET Blends
by Veronika Anna Szabó, Gusztáv Fekete and Gábor Dogossy
J. Compos. Sci. 2024, 8(10), 383; https://doi.org/10.3390/jcs8100383 - 24 Sep 2024
Viewed by 927
Abstract
Over the past decades, the use of polyethylene terephthalate (PET) has seen significant growth, particularly in the packaging industry. However, its long decomposition time poses serious environmental challenges. The aim of this research was to develop a process for the foaming of large [...] Read more.
Over the past decades, the use of polyethylene terephthalate (PET) has seen significant growth, particularly in the packaging industry. However, its long decomposition time poses serious environmental challenges. The aim of this research was to develop a process for the foaming of large quantities of recycled PET (rPET) using endothermic and exothermic foaming agents. Various formulations with different ratios of endothermic and exothermic foaming agents were prepared, as well as their mixtures. The study found that the endothermic–exothermic hybrid foaming process resulted in a finer cell-size distribution and enhanced mechanical properties, making the foams highly suitable for widespread applications. The results support the potential use of exothermic foaming agents as nucleating agents in a hybrid foaming system. In particular, the ratio of 3% endothermic and 1% exothermic foaming agents proved optimal in terms of achieving a balance between porosity and mechanical strength, thereby enabling broad industrial applicability. Full article
(This article belongs to the Special Issue Trends and Challenges in Developing and Processing Composite Materials)
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Review

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28 pages, 14294 KiB  
Review
A Short Review on Radiopaque Polyurethanes in Medicine: Physical Principles, Effect of Nanoparticles, Processing, Properties, and Applications
by Julia Garavatti and Heitor Luiz Ornaghi Jr.
J. Compos. Sci. 2024, 8(10), 409; https://doi.org/10.3390/jcs8100409 - 5 Oct 2024
Viewed by 1166
Abstract
Polyurethanes are used in a wide range of biomedical applications due to their variety of physical–chemical, mechanical, and structural properties, and biotic and abiotic degradation. They are widely used in bio-imaging procedures when metallic-based filler particles are incorporated, making the final product radiopaque. [...] Read more.
Polyurethanes are used in a wide range of biomedical applications due to their variety of physical–chemical, mechanical, and structural properties, and biotic and abiotic degradation. They are widely used in bio-imaging procedures when metallic-based filler particles are incorporated, making the final product radiopaque. It would be advantageous, however, if polyurethanes with intrinsic radiopacity could be produced in their synthesis, avoiding a series of disadvantages in the processing and final product and also presenting potential antimicrobial activities. This review’s objective was to study the radiopacifying characteristics of nanoparticles, the physical principles of radiopacity, and the variety of medical applications of polyurethanes with nanoparticles. It was found in this study that the synthetization of radiopaque polyurethanes is not only possible but the efficiency of synthetization was improved when using atoms with high electron density as part of the backbone or when grafted, making them great multipurpose materials. Full article
(This article belongs to the Special Issue Trends and Challenges in Developing and Processing Composite Materials)
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