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Composites from Sustainable Resources: Properties, Manufacturing, and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 15 August 2025 | Viewed by 438

Special Issue Editor


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Guest Editor
Department of Engineering and Management, University Politehnica Timișoara, 331028 Hunedoara, Romania
Interests: natural fiber composites, mechanical properties; manufacturing technologies; characterization of advanced materials; thermal fatigue; structure optimization; industrial mechanical equipment

Special Issue Information

Dear Colleagues,

Amid the need for a sustainable source of raw materials, as well as environmental problems caused by plastics and metals, sustainable materials have become an essential pilon of innovation. In this context, composite materials represent a promising solution in this direction, offering environmentally friendly alternatives to conventional materials. They play an essential role in technological development and the transition to a circular economy, thanks to the unique combination of properties offered by combining several components with complementary characteristics. These properties recommend them for a wide range of industrial and commercial applications. The manufacturing process, which integrates advanced technologies, demonstrates the potential of these materials to meet the requirements of the circular economy. Currently, research is directed towards the development of new composite materials with reduced impact on the environment and human health, which after the end of their life cycle are easily recyclable and biodegradable, which ensure the same performance, but are produced in the most environmentally friendly way possible. The special issue "Composites from Sustainable Resources: Properties, Manufacturing, and Applications" aims to provide an overview of the latest developments in the fields of manufacturing, characterization, and testing of composite materials used in various industrial applications. With its essential importance in achieving the dual goals of high-quality production and effective environmental protection, we welcome original research articles and reviews relating to all these aspects.

Prof. Dr. Camelia Pinca-Bretotean
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.

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Keywords

  • composite
  • resins
  • fibers
  • technology
  • properties
  • testing
  • applications
  • ecology
  • sustainability

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Published Papers (1 paper)

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Research

27 pages, 15110 KiB  
Article
Innovative Characterisation of By-Products from Intensive Agriculture for Their Use as Reinforcement in Biocomposites and Construction Materials
by Ana Cervilla-Maldonado, Ignacio Valverde-Palacios, Almudena Pérez-Rus and Raquel Fuentes-García
Appl. Sci. 2025, 15(9), 5121; https://doi.org/10.3390/app15095121 - 5 May 2025
Viewed by 265
Abstract
The production of agricultural residues causes environmental pollution, especially in regions with intensive horticultural production. The solution is to maximise the use of residues, applying the ‘zero waste’ model and using them to develop construction materials. Natural fibres used to reinforce materials have [...] Read more.
The production of agricultural residues causes environmental pollution, especially in regions with intensive horticultural production. The solution is to maximise the use of residues, applying the ‘zero waste’ model and using them to develop construction materials. Natural fibres used to reinforce materials have environmental and economic benefits due to their low cost. This research presents an innovative characterisation using an inverted-plate optical microscope, a high-resolution scanning electron microscope (HRSEM) and a 3D X-ray microscope. A physico-mechanical and chemical characterisation of horticultural fibres was also conducted. The fibres analysed were those produced in the highest quantities, including those from tomatoes, peppers, zucchinis, cucumbers and aubergines. The viability of these natural fibres for use as reinforcements in biocomposites was investigated. The analysis centred on studying the microstructure, porosity, chemical composition, tensile strength, water absorption and environmental degradation of the natural fibres. The results showed a porosity ranging from 47.44% to 61.18%, which contributes to the lightness of the materials. Cucumber stems have a higher tensile strength than the other stems, with an average value of 19.83 MPa. The SEM analysis showed a similar chemical composition of the scanned fibres. Finally, the life cycle of the materials made from horticultural residue was analysed, and negative GWP (global warming potential) CO2eq values were obtained for two of the proposed materials, such as stabilised soil reinforced with agricultural fibres and insulation panels made of agricultural fibres. Full article
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