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Journal of natural fibers
The Haworth Press
Journal of natural fibers

The Haworth Press

季刊

1544-0478

Journal of natural fibers/Journal Journal of natural fibersEISCI
正式出版
收录年代

    Bagasse Fiber Reinforced Functionalized Styrene Ethylene Butylene Styrene Composites by Palsule Process

    DineshSanjay Palsule
    3981-3992页
    查看更多>>摘要：ABSTRACT Eco-friendly Bagasse Fiber Reinforced Functionalized Styrene Ethylene Butylene Styrene (BGF/CF-SEBS) composites have been developed by Palsule process by twin screw extrusion and injection molding. The composites show higher mechanical properties relative to the matrix that increases with increasing fiber contents in them. FE-SEM micrographs show good interfacial adhesion between reinforcing BGF and CF-SEBS matrix in the composites and FTIR confirms its origin from the ester and hydrogen bonds formed between –OH of BGF and anhydride of CF-SEBS in the composites. Thermal stability of the composites is intermediate between those of BGF and CF-SEBS.
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    The Effect of Nanofibrillated Tempo-oxidized Cotton Linters on the Strength and Optical Properties of Paper

    Jovana MilanovicTijana LazicIrena ZivkovicMarija Vuksanovic...
    3993-4006页
    查看更多>>摘要：ABSTRACT This study elaborates the application of composite films based on nanofibrillated cellulose obtained from cotton linters oxidized in the 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)/NaBr/NaClO system, with the use of CaCО3 and/or Al(OH)3 as fillers, and glycols as plasticizers, to improve the mechanical, optical, and sorption properties of paper. The paper coating with nanofibrillated cellulose-based films, without additional adhesive, depending on the concentration of nanofibrillated cellulose in the dispersion and the type of filler, improves the mechanical properties of paper, and decreases sorption properties, while no significant changes were observed in optical properties compared to the initial papers.
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    Animal fiber characterization and fiber loading effect on mechanical behaviors of sheep wool fiber reinforced polyester composites

    J. ManivannanS. RajeshK. MayandiN. Rajini...
    4007-4023页
    查看更多>>摘要：ABSTRACT This study presents animal fiber characterization and the influence of various fiber loadings on mechanical properties of sheep hair fiber-reinforced polymer (SHFRP) composites. The sheep hair fibers (SHF) characterization was carried out using X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM) and non-contact surface roughness machine. The functional group and chemical bond were analyzed using FTIR techniques. The crystallinity index and thermal stability of the SHF were characterized, using XRD and TGA techniques, respectively. The composites were fabricated using a compression molding technique and a varying weight percentage of 20, 30 and 40 fiber. The composite plates were cut into test samples according to ASTM standard methods for their mechanical (tensile, flexural and impact) behaviors to be extensively analyzed. The surface morphology of the fractured samples was examined with aid of an SEM. From the results obtained, it was evident that the SHFRP composite recorded a significantly increased tensile strength property when fiber loading was increased from 20 to 40 wt%. The optimum 40 wt% SHFRP composite sample recorded better flexural and impact strength, when compared with other counterparts. This was attributed to a better fiber-matrix interfacial adhesion, as established fromSEM micrographs.
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    Mechanical and Vibrational Property Evaluation of Banana Fiber Epoxy Sandwich Composite with Steel Wire Mesh Core

    Thozhur LoganathanK. Vinoth KumarK. AyyappaG. Mahendran...
    4024-4037页
    查看更多>>摘要：ABSTRACT This work analyzed the mechanical and vibration characteristic of the banana fiber sandwich layer with core AISI 304 steel wire mesh (WM). The following specimen configurations were prepared by hand lay-up method by varying fiber orientation in the skin layer: S = 0/0/0/0, S1 = 0/0/WM/0/0, S2 = 0/90/WM/90/0, S3 = 0/45/WM/-45/0 and S4 = 0/30/WM/60/0. The primary mechanical properties of the sandwich composite specimens were obtained by conducting Tensile, Flexural, and Impact strengths as per ASTM standards, whereas secondary vibration characteristics by experimental modal analysis. The presence of core WM enhances the primary properties especially in S1 attributed to the 0° fiber orientation with high load carrying capacity, natural frequency (Mode I, II), and stiffness. Whereas the specimen with angular fiber orientation (S2, S3, S4) in the skin layer exhibits higher damping showcasing their ability to dissipate energy. Specimen ‘S3ʹ acts as a performance change over with 45/-45 fiber in the skin layer. Morphology study of a test of a specimen with ‘WM’ shows the participation of matrix, banana fiber, and WM in load transfer mechanism with varied failure pattern. Hence, this type of composite structure can be preferred to use in structural and automobile applications by properly orienting the fiber in the skin layer.
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    Characterization of raw and alkali treated new cellulosic fiber from the rinds of Thespesia populnea plant

    P. PandiarajanM. KathiresanP.G. BaskaranJeya kanth...
    4038-4049页
    查看更多>>摘要：ABSTRACT This current study aims to evaluate the suitability of a new cellulosic fiber by characterization methods. Raw fibers are extracted from the rinds of Thespesia Populnea plant by the water-retting process. The extracted raw fibers are treated with 1% (w/v) of NaOH solution with a soaking time of 90 minutes. The characterization outcomes report that alkali treatment increases the crystalline index and cellulose content from 41% to 65% and 52.5 wt% to 58.9 wt%, respectively. The FT-IR spectra analysis confirms diminishing of non-cellulosic substances in alkali-treated fiber. The alkali treatment alters the fiber surface and fiber diameter, which is evidenced in morphological analysis.
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    Thermo-physiological Comfort of Woven Fabrics Made from Different Cellulosic Yarns

    Muhammad Umar NazirKhubab ShakerYasir NawabSyed Talha Ali Hamdani...
    4050-4062页
    查看更多>>摘要：ABSTRACT Cellulose is the most abundant substance existing in the form of plants on the earth. These fibers are obtained either directly or indirectly from the seed, leaves, stem, or wood of plants. Cellulosic fibers are preferred for apparels owing to their abundance, ease of processing, biodegradation, and compatible with the human body in terms of better moisture management, thermal regulation, and tactile comfort. In this study, woven fabric made of four different cellulosic yarns, i.e. cotton, bamboo, tencel, and viscose were produced, and their thermo-physiological comfort properties were compared. The linear density of yarns, and thread density and weave structure (3/1 twill) of all the fabrics were kept constant on the weaving machine. Air permeability, thermal resistance, and moisture management tests were carried out to analyze their thermo-physiological comfort properties. The results showed that cotton fabric showed higher air permeability and thermal resistance as compared to other cellulosic fabrics. Whereas the moisture management properties of tencel fabric were superior to the rest of cellulosic fabrics. Moreover, the effect of cellulosic materials on air permeability and moisture management properties of the woven fabrics was found statistically significant.
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    Kenaf (Hibiscus Cannabinus L.) Breeding

    Muhammad Zohaib AfzalAminu Kurawa IbrahimYi XuSylvain Niyitanga...
    4063-4081页
    查看更多>>摘要：ABSTRACT Kenaf (Hibiscus cannabinus L.) is an important bast fiber crop, and a source of fiber to many industries. This crop is diploid (2n = 2x = 36) in nature, and belongs to Malvaceae family. Kenaf breeding is directed to develop the new cultivars that are better in fiber production, fiber quality, resistant to anthracnose, photo-insensitivity, resistant to salt and drought stresses, and so on. This review describes the various successes in kenaf breeding, and reports the future opportunities. The various classical and advanced breeding approaches have great potential to achieve the goals. However, the recent approaches in plant breeding and biotechnology could have more prospective to accelerate the kenaf breeding. These may include genomic selection, CRISPR/Cas9 gene-editing system, and other omics-based approaches. We suggest that the integration of recent approaches with classical ones has vital importance in improving the efficiency, speed, and accuracy of kenaf breeding.
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    Sustainable development of needle punched nonwoven fabrics from silk worm cocoon waste for oil spill removal

    Subramoniapillai VijuRaju Seenivasan RengasamyGovindarajan ThilagavathiChandra Jeet Singh...
    4082-4092页
    查看更多>>摘要：ABSTRACT In this work, silkworm cocoon waste is used to make needle-punched nonwoven to study the oil sorption characteristics. The contact angles, oil sorption and retention capacity, sorption capacity after repeated use, and biodegradability of silk nonwoven are investigated. The oil sorption capacity of silk nonwoven fabrics against crude oil and vegetable oil are 31.52 g/g and 25.92 g/g respectively. The silk fibers are hydrophobic and oleophilic indicated by the contact angles. The study showed that silk nonwoven fabrics can be reused effectively at least five times before being disposed-off. The silk nonwoven biodegrades completely in soil in 100 days. The present work indicates that the silk nonwoven is a potential candidate for sustainable oil spill removal.
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    Characterization of Chemically Treated Limonia Acidissima (Wood Apple) Shell Powder: Physicochemical, Thermal, and Morphological Properties

    Vasantha Kumar Shravanabelagola Nagaraja SettyGovardhan GoudSharath Peramanahalli ChikkegowdaSanjay Mavinkere Rangappa...
    4093-4104页
    查看更多>>摘要：ABSTRACT The latest environmental legislations imposed by various governments across the globe have made exceptional utilization of biodegradable (green) materials in composite structures. The strengthening of natural based composites depends mainly on the properties of natural fiber reinforcement. Their incompatible hydrophilic nature which affects the bonding of the hydrophobic matrix is a major limitation in the use of natural fiber. Hence in the present work, to overcome the limitation, Limonia acidissima shell powder was subjected to alkali chemical treatment. Characterization of processed samples was evaluated through chemical analysis, proximate analysis, ultimate analysis, FT-IR (Fourier Transform Infrared Spectroscopy), XRD (X-ray diffraction), TGA (Thermo Gravimetric Analysis), and DTA (Differential Thermal Analysis). Also using SEM (Scanning Electron Microscope) the microstructures were analyzed. The alkaline treatment effect on Limonia acidissima shell powder showed that the removal of non-cellulose materials (lignin, hemicellulose, and wax) from the surface of fiber resulted in a drastic improvement in cellulose content. Also, the treatment enhanced the fixed carbon content, improved crystallinity index as well as crystal size, and delay in thermal degradation. The alkali-treated Limonia acidissima shell powder surface has become rough and allowing it to have stronger matrix bonding.
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    Mechanical and Acoustic properties of Bagasse – Coconut Coir based Hybrid Reinforced Composites

    M.K. MarichelvamK. KandakodeeswaranM. Geetha
    4105-4114页
    查看更多>>摘要：ABSTRACT In this paper, a hybrid composite is developed from natural fibers of bagasse and coconut coir. The mechanical and acoustic properties of the hybrid composites are investigated. While preparing the hybrid composites, the polyester resin is used as a matrix. Treated and untreated specimens were prepared by varying the weight percentage of bagasse and coconut coir fibers and resin. Various mechanical tests including tensile test, hardness test, flexural test, impact test and impedance tests were carried out as per ASTM standards. Experimental results on comparison reveal that the developed hybrid composite has a better sound absorption coefficient values and mechanical properties. Hence, the proposed hybrid composite could be used in Industries.
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