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Extraction of Natural Fibers
Published in Shishir Sinha, G. L. Devnani, Natural Fiber Composites, 2022
Deeksha Jaiswal, G. L. Devnani
Natural fiber–based composites providing efficient utilization in almost all sectors in the current scenario, as it has no issues of degradability such as recycling or disposal problems. Fiber's properties vary on the account of what kind of fiber is used for application. One of the most important factors is that origin of plant, such as plant type or mineral or if it belongs to animal fiber. Plant fibers associated with higher amounts of cellulosic components on the other hand, protein is the main constituent of animal fiber. Characteristics of fiber also have dependency on the structure of plant and chemical components as well, which can be related directly to how the fiber has been extracted from its source, what kind of fiber it is, time of harvesting, conditions until plant maturity, and maturity and decortications as well (Senthilkumar et al., 2018). Generally, there are main types of natural fibers: plant, animal, and mineral fibers.
Introduction to Thermoplastic Composites
Published in R. Alagirusamy, Flexible Towpregs and Their Thermoplastic Composites, 2022
Most of the studies on fibre reinforced polymer composites are carried out using short fibre as reinforcement. This is mainly due to abundant availability, easy handling and processability of the short staple fibres. Short fibre reinforced polymer composites can be manufactured by different methods such as compression moulding, vacuum bagging, injection moulding etc. Depending on their origin, fibres are of two types, namely natural fibres and synthetic fibres.
Materials
Published in Sumit Sharma, Composite Materials, 2021
The matrix also performs various functions, which are as follows: The matrix material holds the fibers together.It plays an important role to keep the fibers at desired positions. The desired distribution of the fibers is very important from micromechanical point of view.It keeps the fibers separate from each other so that the mechanical abrasion between them does not occur.It transfers the load uniformly between fibers. Further, in case a fiber is broken or fiber is discontinuous, then it helps to redistribute the load in the vicinity of the break site.It provides protection to fibers from environmental effects.It provides better finish to the final product.It enhances some of the properties of the resulting material and structural component (that fiber alone is not able to impart), such as transverse strength of a lamina and impact resistance.
State of art review on the incorporation of fibres in asphalt pavements
Published in Road Materials and Pavement Design, 2023
Shenghua Wu, Ara Haji, Ian Adkins
Fibres are generally defined as ‘threadlike structures with an outside diameter of about 0.1 mm and of an herbal, mineral, or polymeric origin’ (Hamedi et al., 2021). There are various types of fibres that can be divided into two major categories: natural fibre and synthetic fibre (Awais et al., 2021; Slebi-Acevedo et al., 2019). Figure 2 provides a classification of fibres that have potential for asphalt use. Natural fibres are from the natural resources, which have been widely used since human civilisation, including plant fibre, animal fibre and mineral fibre, among of which mineral fibre can also be classified as an inorganic fibre. The fibres obtained from animal hairs or secreted from animals are known as animal fibres, generally, are protein-based (Shanbara et al., 2018a). Plant fibres are from plants. Plant fibre strands are bound together with other naturally occurring substances such as cellulose, lignin, hemicellulose, pectin, waxes and gums. Plant fibres are used as reinforcing materials in asphalt mixtures due to a good high-temperature stability (Shanbara et al., 2018b).
Nomination and commentary on ‘Direct electrospinning of highly twisted, continuous nanofiber yarns, by Ali U., Zhou Y., Wang X. and Lin T., Journal of the Textile Institute, 103:1,80–88, 2012, and published online 07 April 2011. https://doi.org/10.1080/00405000.2011.552254’
Published in The Journal of The Textile Institute, 2023
Electrospinning has been regarded as the most effective and versatile technology for producing nanofibers. To date, however,electrospunnanofibers have been produced mainly in the form of randomly oriented nonwovens, rather than continuous yarns. As stated in the paper’s introduction part, yarns can serve as the key building blocks to construct complex fibrous structures for numerous application areas. They are produced typically in the form of either continuous filaments or spun yarns consisting of twisted staple fiber strands. Although spun yarns can be easily produced from conventional fibers using well established spinning technologies, converting nanofibers into interlocked continuous fiber bundles, i.e. nanofiber yarns, remains a challenge due to the difficulties in manipulation of nanofibers using conventional yarn production techniques.
A novel 3D fibre-reinforcement architecture for high performance natural fibre reinforced composite adhesively bonded joints
Published in The Journal of Adhesion, 2023
H.F.M. de Queiroz, J.S.S. Neto, D.K.K. Cavalcanti, M.D. Banea
Environmentally conscious design has become front and centre in many industrial sectors owing to the mounting pressure to drastically decrease carbon emissions and overall environmental impact. Fibre-reinforced composite materials have been one of the go-to methods for decreasing the use of certain materials with very high energy required for fabrication (i.e., substituting metals for carbon fibre-reinforced composites (CFRPs)) as well as decreasing the overall structural weight while maintaining the required material properties [1]. However, while this was, and remains a highly valuable and used strategy, the need to further decrease the carbon footprint of composite structures continues to increase. In this context, natural fibre composites present a suitable solution for many of the issues presently facing composite materials owing to their much lower cost, energy to produce, weight and overall carbon footprint when compared to their synthetic counterparts. Though, there are still many challenges that need to be addressed such as the high variability in fibre quality and properties as well as their hydrophilic nature [2–5].