Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic Review

The specific interest for the use of bark in materials, instead than for energy recovery, is owed to circular economy considerations, since bark fibers are normally byproducts or even waste from other sectors, and therefore their use would globally reduce the amount of refuse by replacing other mate...

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Main Authors: Sivasubramanian Palanisamy, Mayandi Kalimuthu, Rajini Nagarajan, José Maria Fernandes Marlet, Carlo Santulli
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Fibers
Subjects:
Online Access:https://www.mdpi.com/2079-6439/11/2/13
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author Sivasubramanian Palanisamy
Mayandi Kalimuthu
Rajini Nagarajan
José Maria Fernandes Marlet
Carlo Santulli
author_facet Sivasubramanian Palanisamy
Mayandi Kalimuthu
Rajini Nagarajan
José Maria Fernandes Marlet
Carlo Santulli
author_sort Sivasubramanian Palanisamy
collection DOAJ
description The specific interest for the use of bark in materials, instead than for energy recovery, is owed to circular economy considerations, since bark fibers are normally byproducts or even waste from other sectors, and therefore their use would globally reduce the amount of refuse by replacing other materials in the production of composites. For the purpose of promoting their application in polymer composites, mainly under a geometry of short random fibers, bark fibers are extracted and treated, normally chemically by alkali. Following this, investigations are increasingly carried out on their chemical composition. More specifically, this includes measuring cellulose, hemicellulose, and lignin content and their modification with treatment on their thermal properties and degradation profile, and on the mechanical performance of the fibers and of the tentatively obtained composites. This work aims at reviewing the current state of studies, trying to elicit which bark fibers might be most promising among the potentially enormous number of these, clarifying which of these have received some attention in literature and trying to elicit the reason for this specific interest. These can be more thoroughly characterized for the purpose of further use, also in competition with other fibers not from bark, but from bast, leaves, etc., and pertaining to developed production systems (cotton, hemp, flax, jute, etc.). The latter are already widely employed in the production of composites, a possibility scantly explored so far for bark fibers. However, some initial works on bark fiber composites and both thermoplastic and thermosetting are indicated and the importance of some parameters (aspect ratio, chemical treatment) is discussed.
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spelling doaj.art-74b41bbae73a48d796e6993c0f3be6fb2023-11-16T20:26:51ZengMDPI AGFibers2079-64392023-01-011121310.3390/fib11020013Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic ReviewSivasubramanian Palanisamy0Mayandi Kalimuthu1Rajini Nagarajan2José Maria Fernandes Marlet3Carlo Santulli4Department of Mechanical Engineering, Kalasalingam Academy of Research and Education, Anand Nagar, Krishnankovil, Srivilliputhur 626126, IndiaDepartment of Mechanical Engineering, Kalasalingam Academy of Research and Education, Anand Nagar, Krishnankovil, Srivilliputhur 626126, IndiaDepartment of Mechanical Engineering, Kalasalingam Academy of Research and Education, Anand Nagar, Krishnankovil, Srivilliputhur 626126, IndiaJMARLET Consulting and Training, Sao Jose dos Campus, Sao Paulo 12237-510, BrazilSchool of Science and Technology, Università Degli Studi di Camerino, 62032 Camerino, ItalyThe specific interest for the use of bark in materials, instead than for energy recovery, is owed to circular economy considerations, since bark fibers are normally byproducts or even waste from other sectors, and therefore their use would globally reduce the amount of refuse by replacing other materials in the production of composites. For the purpose of promoting their application in polymer composites, mainly under a geometry of short random fibers, bark fibers are extracted and treated, normally chemically by alkali. Following this, investigations are increasingly carried out on their chemical composition. More specifically, this includes measuring cellulose, hemicellulose, and lignin content and their modification with treatment on their thermal properties and degradation profile, and on the mechanical performance of the fibers and of the tentatively obtained composites. This work aims at reviewing the current state of studies, trying to elicit which bark fibers might be most promising among the potentially enormous number of these, clarifying which of these have received some attention in literature and trying to elicit the reason for this specific interest. These can be more thoroughly characterized for the purpose of further use, also in competition with other fibers not from bark, but from bast, leaves, etc., and pertaining to developed production systems (cotton, hemp, flax, jute, etc.). The latter are already widely employed in the production of composites, a possibility scantly explored so far for bark fibers. However, some initial works on bark fiber composites and both thermoplastic and thermosetting are indicated and the importance of some parameters (aspect ratio, chemical treatment) is discussed.https://www.mdpi.com/2079-6439/11/2/13bark extractionchemical compositionthermal degradationmechanical propertiesbark fiber composites
spellingShingle Sivasubramanian Palanisamy
Mayandi Kalimuthu
Rajini Nagarajan
José Maria Fernandes Marlet
Carlo Santulli
Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic Review
Fibers
bark extraction
chemical composition
thermal degradation
mechanical properties
bark fiber composites
title Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic Review
title_full Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic Review
title_fullStr Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic Review
title_full_unstemmed Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic Review
title_short Physical, Chemical, and Mechanical Characterization of Natural Bark Fibers (NBFs) Reinforced Polymer Composites: A Bibliographic Review
title_sort physical chemical and mechanical characterization of natural bark fibers nbfs reinforced polymer composites a bibliographic review
topic bark extraction
chemical composition
thermal degradation
mechanical properties
bark fiber composites
url https://www.mdpi.com/2079-6439/11/2/13
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