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Polymers
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Research on Natural Fiber-Reinforced Composites
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Research on Natural Fiber-Reinforced Composites

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

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 3861

Special Issue Editors

Dr. Felipe Perissé Duarte Lopes

E-Mail Website
Guest Editor
Advanced Materials Laboratory-LAMAV, State University of the Northern Rio de Janeiro-UENF, Campos dos Goytacazes, RJ, Brazil
Interests: natural fibers; fiber; composites; polymer composites and material characterization
Prof. Dr. Carlos Maurício Fontes Vieira

E-Mail Website
Guest Editor
Advanced Materials Laboratory-LAMAV, State University of the Northern Rio de Janeiro-UENF, Campos dos Goytacazes, RJ, Brazil
Interests: foundry; bricks; porosity; ceramics; microstructure and solid waste
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent decades, natural fibers have gained increasing popularity due to their good characteristics and properties, especially their low density, high specific mechanical strength, low cost and green sources. These fibers can be an ecofriendly solution to substitute or compete with the use of synthetic fibers, and they can also be used to produce more eco-friendly materials.

We aim to increase the development in this field, achieve good mechanical performance, and make new discoveries. New research is needed in various fields, such as characterization, properties, processing and applications. This is particularly the case regarding new composites using new matrixes, new natural fibers or new processing techniques this raw materials.

Thus, in this Special Issue, we will welcome contributions which exploit new composites using natural fibers as reinforcements or fillings.

Dr. Felipe Perissé Duarte Lopes
Prof. Dr. Carlos Maurício Fontes Vieira
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

  • natural fibers
  • particles from natural fibers
  • long fibers
  • short fibers
  • eco-friendly composites
  • green composites
  • characterization
  • properties, processing and applications

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Published Papers (2 papers)

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Research

12 pages, 5173 KiB  
Article
Evaluation of Hot Pressing Processing by Physical Properties of Ecofriendly Composites Reinforced by Eucalyptus Sawdust and Chamotte Residues
by Juvenil Nunes de Oliveira Júnior, Felipe Perissé Duarte Lopes, Noan Tonini Simonassi, Michel Picanço Oliveira, Fabricio Gomes Gonçalves and Carlos Maurício Fontes Vieira
Polymers 2023, 15(8), 1931; https://doi.org/10.3390/polym15081931 - 19 Apr 2023
Cited by 4 | Viewed by 1275
Abstract
The particleboard industry consumes large amounts of raw material, and this type of product consumption has been increasing over the last few years. The research for alternative raw materials becomes interesting, since most of the resources come from planted forests. In addition, the [...] Read more.
The particleboard industry consumes large amounts of raw material, and this type of product consumption has been increasing over the last few years. The research for alternative raw materials becomes interesting, since most of the resources come from planted forests. In addition, the investigation of new raw materials must take into account environmentally correct solutions, such as the use of alternative natural fibers, use of agro-industrial residues, and resins of vegetable origin. The objective of this study was to evaluate the physical properties of panels manufactured by hot pressing using eucalyptus sawdust, chamotte, and polyurethane resin based on castor oil as raw materials. Eight formulations were designed with variations of 0, 5, 10, and 15% of chamotte, and two variations of resin with 10% and 15% of volumetric fraction. Tests of gravimetric density, X-ray densitometry, moisture content, water absorption, thickness swelling, and scanning electron microscopy were carried out. Through the results it can be noticed that the incorporation of chamotte in the manufacture of the panels increased the water absorption and the swelling in thickness, around 100% and the use of 15% of resin decreased, more than 50%, the values of these properties. X-ray densitometry analyzes showed that the addition of chamotte alters the density profile of the panel. In addition, the panels manufactured with 15% resin were classified as P7, the most demanding type on EN 312:2010 standard. Full article
(This article belongs to the Special Issue Research on Natural Fiber-Reinforced Composites)
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15 pages, 4412 KiB  
Article
Evaluation of Composites Reinforced by Processed and Unprocessed Coconut Husk Powder
by David Coverdale Rangel Velasco, Felipe Perissé Duarte Lopes, Djalma Souza, Henry Alonso Colorado Lopera, Sergio Neves Monteiro and Carlos Maurício Fontes Vieira
Polymers 2023, 15(5), 1195; https://doi.org/10.3390/polym15051195 - 27 Feb 2023
Cited by 6 | Viewed by 2225
Abstract
Engineering activities aim to satisfy the demands of society. Not only should the economic and technological aspects be considered, but also the socio-environmental impact. In this sense, the development of composites with the incorporation of waste has been highlighted, aiming not only for [...] Read more.
Engineering activities aim to satisfy the demands of society. Not only should the economic and technological aspects be considered, but also the socio-environmental impact. In this sense, the development of composites with the incorporation of waste has been highlighted, aiming not only for better and/or cheaper materials, but also optimizing the use of natural resources. To obtain better results using industrial agro waste, we need to treat this waste to incorporate engineered composites and obtain the optimal results for each application desired. The objective of this work is to compare the effect of processing coconut husk particulates on the mechanical and thermal behavior of epoxy matrix composites, since we will need a smooth composite in the near future to be applied by brushes and sprayers with a high quality surface finish. This processing was carried out in a ball mill for 24 h. The matrix was a Bisphenol A diglycidyl ether (DGEBA)/triethylenetetramine (TETA) epoxy system. The tests that were performed were resistance to impact and compression, as well as the linear expansion test. Through this work, it can be observed that the processing of coconut husk powder was beneficial, allowing not only positive improvements to the properties of the composite, but also a better workability and wettability of the particulates, which was attributed to the change in the average size and shape of particulates. That means that the composites with processed coconut husk powders have improved impact strength (46 up to 51%) and compressive strength (88 up to 334%), in comparison with unprocessed particles. Full article
(This article belongs to the Special Issue Research on Natural Fiber-Reinforced Composites)
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