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Advancements in Sustainable Composite Materials: From Innovative Technologies to Eco-Friendly Design

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Materials".

Deadline for manuscript submissions: 14 May 2024 | Viewed by 2516

Special Issue Editors


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Guest Editor
1. Laboratory of Advanced Materials and Devices, School of Physics, Aristotle University of Thessaloniki, GR 54636 Thessaloniki, Greece
2. Department of Chemistry, University of Ioannina, P.O. Box 1186, GR-45110 Ioannina, Greece
Interests: sustainable material science; sustainable composites; thermal properties; crystallization; degradation; kinetics; structural characterization
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Special Issue Information

Dear Colleagues,

This Special Issue, titled "Advancements in Sustainable Composite Materials: From Innovative Technologies to Eco-Friendly Design", aims to address the growing interest in innovative and high-performance materials, with a focus on polymer composite materials. Composite materials have gained attention due to their excellent strength-to-weight ratio and wide-ranging applications across industries such as aerospace, automotive, electronics, construction, packaging, and medical devices. This Special Issue emphasizes both the exploration of new techniques for composite material production and the optimization of existing processes to obtain high-performance, lightweight materials.

We invite contributions to this Special Issue which cover various aspects of polymer composite materials, innovative technologies, and manufacturing processes. Authors are encouraged to present research on established manufacturing methods as well as explore new and innovative approaches. Additionally, this Special Issue welcomes the submission of research on coating technologies, fiber treatments, and materials that play a role in creating cost-effective and sustainable composite materials. This encompasses the exploration of surface coatings and treatments that enhance the performance or sustainability of composites, as well as the investigation of new materials that exhibit eco-friendly characteristics and can be incorporated into composite structures. The mechanical, thermal, microstructural, and morphological properties of these materials will be explored too.

Submissions related to topics such as bioplastics and microplastics, their synthesis and characterization, and their applications are also welcomed. By focusing on sustainable material science and material design, this Special Issue seeks to advance research and innovation in the development of composite materials that not only possess exceptional performance characteristics, but also adhere to principles of sustainability.

The aim of this Issue is to contribute to the creation of materials that are environmentally friendly, socially responsible, and economically viable, promoting a more sustainable future across industries.

We look forward to receiving your contributions.

Dr. Evangelia Tarani
Prof. Dr. George Z. Papageorgiou
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. Sustainability 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 2400 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

  • sustainable material science
  • material design
  • environmental friendliness
  • sustainable composites

Published Papers (3 papers)

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Research

12 pages, 2593 KiB  
Article
Biodegradability and Water Absorption of Macadamia Nutshell Powder-Reinforced Poly(lactic Acid) Biocomposites
by Chensong Dong, Ian J. Davies and Celso Carlino Maria Fornari Junior
Sustainability 2024, 16(8), 3139; https://doi.org/10.3390/su16083139 - 09 Apr 2024
Viewed by 512
Abstract
This study investigates the biodegradability and water absorption properties of Macadamia nutshell powder and poly(lactic acid) (PLA) biocomposites using a Design of Experiments (DOE) approach. The influences of processing methods, the Macadamia nutshell powder’s weight content, and the powder’s condition are studied. A [...] Read more.
This study investigates the biodegradability and water absorption properties of Macadamia nutshell powder and poly(lactic acid) (PLA) biocomposites using a Design of Experiments (DOE) approach. The influences of processing methods, the Macadamia nutshell powder’s weight content, and the powder’s condition are studied. A biodegradability test is performed in accordance with the American Society for Testing and Materials (ASTM) D5338-11 by burying the test specimens in wet garden soil at a controlled temperature of 50 °C and 100% humidity. The specimens obtained by counter-rotating processing exhibit varying weight loss patterns with an increasing powder weight content, while the specimens obtained by co-rotating processing demonstrate consistent behaviour. This study highlights the complex nature of PLA biodegradation, which is affected by diverse factors such as test conditions and environments, thereby contributing to a deeper understanding of the sustainability implications. A water absorption test is carried out in accordance with ASTM D570-98. It is shown that the water absorption characteristics are predominantly determined by the hydrophilic nature of Macadamia nutshells, with an increased powder weight content leading to higher absorption. Pure PLA, due to its hydrophobic nature, exhibits minimal water absorption. By unravelling the complexities of PLA biodegradation and water absorption in Macadamia nutshell and PLA biocomposites, this study not only advances the understanding of materials’ behaviour but also underscores the potential sustainability implications of utilizing natural resources in composite materials. This research contributes valuable insights to the broader discourse on environmentally friendly materials and their role in promoting sustainable practices. Full article
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26 pages, 8154 KiB  
Article
Performance Study of Sustainable Concrete Containing Recycled Aggregates from Non-Selected Construction and Demolition Waste
by Davood Akbarimehr, Abolfazl Eslami, Asgar Nasiri, Mohammad Rahai and Moses Karakouzian
Sustainability 2024, 16(7), 2601; https://doi.org/10.3390/su16072601 - 22 Mar 2024
Cited by 1 | Viewed by 693
Abstract
In the present study, we investigated the mechanical performance of concrete composed of non-selected construction and demolition waste (C&DW) sourced from both old and new sections of an inactive waste landfill site in Karaj, Iran. Initially, we determined the composition of the coarse [...] Read more.
In the present study, we investigated the mechanical performance of concrete composed of non-selected construction and demolition waste (C&DW) sourced from both old and new sections of an inactive waste landfill site in Karaj, Iran. Initially, we determined the composition of the coarse and fine C&DW used in concrete production. Subsequently, we meticulously examined the physical and chemical properties of both the C&DW and virgin materials to enable thorough comparisons of the results. We then conducted experimental analyses on 33 concrete mixtures containing recycled C&DW, utilizing various tests, including a compressive strength test (CST) for cylindrical and cubic samples, modulus of elasticity (MOE), wide wheel abrasion test (Capon test), British pendulum number (BPN), and ultrasonic pulse velocity (UPV) test. We considered both non-separated fine and coarse C&DW at different replacement ratios in the recycled concrete (RC). Our findings indicate that using non-separated coarse and fine C&DW in concrete yielded satisfactory results, leading to significant savings in virgin materials required for concrete preparation and promoting sustainable development. Furthermore, non-selected C&DW proved to be a viable sustainable material for similar concrete applications. The results revealed a decrease in brick material consumption in various constructions over the past 20 years in Karaj, contributing to the enhanced strength of C&DW concrete. However, the presence of clay minerals in aged landfill sites can adversely affect concrete performance as a potential destructive factor. Despite the possible negative impact of incorporating fine recycled C&DW materials on concrete mechanical performance, the Capon test results demonstrated that the presence of coarse C&DW can enhance concrete’s wear resistance. Full article
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21 pages, 18655 KiB  
Article
Sustainability in the Manufacturing of Eco-Friendly Aluminum Matrix Composite Materials
by Anna Wąsik, Beata Leszczyńska-Madej and Marcin Madej
Sustainability 2024, 16(2), 903; https://doi.org/10.3390/su16020903 - 21 Jan 2024
Viewed by 872
Abstract
The purpose of this work was to consolidate the eco-friendly Al–SiC composites prepared with various weight fractions of ceramic particles (0; 2.5; 5; 10; 15 wt.% SiC) in the energy-saving sintering process under vacuum and in a nitrogen atmosphere at 600 °C. The [...] Read more.
The purpose of this work was to consolidate the eco-friendly Al–SiC composites prepared with various weight fractions of ceramic particles (0; 2.5; 5; 10; 15 wt.% SiC) in the energy-saving sintering process under vacuum and in a nitrogen atmosphere at 600 °C. The density of the manufactured composites was determined using Archimedes’ method. The mechanical properties and strength characteristics of the metal–ceramic interface were measured using three-point flexural and uniaxial compression tests, as well as the Brinell hardness measurement. The tribological properties were evaluated by determining the coefficients of friction and weight losses of the tested materials and identifying the tribological wear mechanisms. Advanced microstructural observation methods, such as scanning electron microscopy (SEM) and transmission electron microscopy (TEM), were used to analyze the microstructure of the composites in detail, including the identification of the phase composition using X-ray analysis methods. Low-cost composites with a porosity not exceeding 7% were successfully produced via energy-saving production routes. Simultaneously, owing to the formation of aluminum nitrides during sintering in a nitrogen atmosphere, these composites exhibited mechanical and tribological properties superior to those of materials sintered under vacuum. Full article
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