Natural fibre composites: processing, fabrication and applications
01 Jan 2021-pp 179-220
TL;DR: In this paper, the authors contextualize the scenario of natural fibres composites evaluating the development of technologies that allow the processing and the production of high-performance environment-friendly materials.
Abstract: Composite emerged as a new material class that allows synergic combining of different materials’ properties to obtain enhancement in the desired property for an application. Among the available options to compose it, natural fibres have a significant advantages in terms of high specific properties (property to density ratio), which can be compared to glass fibres. Other advantages are the excellent availability of natural sources or residues. They have a low cost associated with their production and they are biodegradable, which gives the natural fibres composites a sustainability aspect. However, limitations in fibre’s thermal stability and chemical surface stability will influence their applications. The processing depends on each matrix that will be applied in the composite: ceramic or polymeric. The modification of the fibre surface to improve its interaction with the matrix will produce high-performance composites with applications in different industrial sectors such as automotive, aeronautics, construction, medicine and several others. This chapter aims to contextualize the scenario of natural fibres composites evaluating the development of technologies that allow the processing and the production of high-performance environment-friendly materials.
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01 Jan 2020
TL;DR: In this article, the state of knowledge on the characteristics of the interfaces between sugar palm particles and polymer matrix is presented, and the challenges regarding the interfacial characteristics are also discussed.
Abstract: Numerous researches have been conducted on utilising degradable sugar palm that has a good possibility in combination with biodegradable thermoplastic materials. In this paper, recent research of sugar palm particle composites are reviewed. The state of knowledge on the characteristics of the interfaces between sugar palm particles and polymer matrix are presented. The main focus is to relate the interfacial characteristics with sugar palm particle properties. Research methodologies adopted in previous studies on the interfaces are presented. The challenges regarding the interfacial characteristics are also discussed. Moreover, the physical, mechanical, and thermal properties of sugar palm particle composites are reviewed. The recent development of the techniques to characterise sugar palm particles, together with the improvements and limitations of the techniques are also discussed.
4 citations
TL;DR: In this paper , the key discoveries provided in the extant literature are reviewed in this brief overview, with an emphasis on the qualities of natural fibres and their recent progress in several engineering areas.
Abstract: Many researchers and industry players are investigating possible uses of natural fibres in order to raise environmental consciousness, preserve nature, and benefit social economy. In the composite business sector, there are several advantageous natural fibre sources open up for a variety of applications. It is worth noting that the performance of natural fibre-reinforced composites may be customized by natural fibre treatment and hybridization. An equilibrium between environmental consequences and desired performance as well as cost-effectiveness may be accomplished by developing composites depending on the product needs. However, some limitations, including their hydrophilic nature and their tendency to absorb moisture during processing, severely restricts natural fibres’ potential for use as reinforcements in polymer composites. Thus, the key discoveries provided in the extant literature are reviewed in this brief overview, with an emphasis on the qualities of natural fibres and their recent progress in several engineering areas.
1 citations
01 Jul 2023
TL;DR: An overview of natural fibres, including classifications, types, properties, advantages, and disadvantages, with a subsequent review of recent studies, focusing on fibre-matrix selection, treatment methods, and characterization to better understand the current situation as mentioned in this paper .
Abstract: Natural fibres are highly desirable in composites as they are renewable, biodegradable, and cost-effective. They are also abundant in nature with many different types available all over the world. However, despite their advantages, key challenges such as poor fibre-matrix interfacial bonding and moisture absorption limit their widespread adoption in more sophisticated applications. This article provides an overview of natural fibres, including classifications, types, properties, advantages, and disadvantages, with a subsequent review of recent studies, focusing on fibre-matrix selection, treatment methods, and characterization to better understand the current situation. It is apparent from these studies that water absorption is a significant challenge due to the inherent hydrophilic nature of natural fibres as even after treatments like mercerization and silane were applied, substantial amounts of absorption were observed. The effects of powder fillers also vary, with beneficial effects up to a certain proportion, beyond which they became detrimental.
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Abstract: Recently, there has been a rapid growth in research and innovation in the natural fibre composite (NFC) area. Interest is warranted due to the advantages of these materials compared to others, such as synthetic fibre composites, including low environmental impact and low cost and support their potential across a wide range of applications. Much effort has gone into increasing their mechanical performance to extend the capabilities and applications of this group of materials. This review aims to provide an overview of the factors that affect the mechanical performance of NFCs and details achievements made with them.
2,182 citations
TL;DR: The prime aim of this review article is to demonstrate the recent development and emerging applications of natural cellulose fibers and their polymer materials.
775 citations
TL;DR: The multifunctional nature ofThese derivatives is analyzed and structure–property relations are discussed in connection to the role of these derivatives in various novel applications.
Abstract: Mono- and di-quaternized 4,4'-bipyridine derivatives constitute a family of heterocyclic compounds, which in recent years have been employed in numerous applications. These applications correspond to various disciplines of research and technology. In their majority, two key features of these 4,4'-bipyridine-based derivatives are exploited: their redox activity and their electrochromic aptitude. Contemporary materials and compounds encompassing these skeletons as building blocks are often characterized as multifunctional, as their presence often gives rise to interesting phenomena, e.g., various types of chromism. This research trend is acknowledged, and, in this review article, recent examples of multifunctional chromic materials/compounds of this class are presented. Emphasis is placed on solvent-/medium- and environment-responsive 4,4'-bipyridine derivatives. Two important classes of 4,4'-bipyridine-based products with solvatochromic and/or environment-responsive character are reviewed: viologens (i.e., N,N'-disubstituted derivatives) and monoquats (i.e., monosubstituted 4,4'-bipyridine derivatives). The multifunctional nature of these derivatives is analyzed and structure-property relations are discussed in connection to the role of these derivatives in various novel applications.
651 citations
TL;DR: This review highlights the recent findings attributed to the biodegradability of bioplastics in various environments, environmental conditions, degree of biodegradation, including the identified bioplastic-degrading microorganisms from different microbial communities.
618 citations
TL;DR: In this paper, the feasibility of using the date palm fibers in the natural fiber reinforced polymer composites (NFC) for automotive industry was reported, and a gap was identified in the way of evaluating NFC relative to comprehensive desired criteria.
583 citations