Extraction and characterization of lignocellulosic fibers from<i>Luffa cylindrica</i>fruit

NagarajaGanesh, B.; Muralikannan, R.

doi:10.1080/1023666x.2016.1146849

Cited by 64 publications

(25 citation statements)

References 33 publications

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“…Similar kind of results is obtained for the hybrid composites reinforced with fruit fibers composites [27]. This shows that the increase in impact strength may be due to the resemblance of the natural Luffa cylindrica fibers as woven mat which is unique of its kind [14]. Hence this unique and uniform arrangement could be the reason for the increased impact strength of the composites.…”

Section: Impact Strengthsupporting

confidence: 75%

“…It is noteworthy to connote that the area under the curve is smaller than that of Cocos nucifera composites, implying that these fibers are stronger. This may be attributed to the presence of high crystallinity index and cellulose content of the Luffa cylindrica fibers [14]. Flexural behaviour of Calotropis procera bast fibers reinforced polyester composites fabricated by handlayup technique increase linearly with fiber addition accedes the current research with optimum mechanical properties obtained at 40 wt% of fibers [28].…”

Section: Flexural Strengthsupporting

confidence: 54%

“…In this present study, the mechanical properties of the polymer composites reinforced by lignocellulosic fibers derived from dry and matured fruits of Cocos nucifera and Luffa cylindrica are tested and reported with special focus on their damage mechanism. Characterization studies conducted on these dry and matured fibers of Cocos nucifera and Luffa cylindrica fibers have shown that the fibers are potential enough to be used as reinforcements in polymers [14]. These fibers contain crystalline cellulose that makes them to be used as potential reinforcements.…”

Section: Introductionmentioning

confidence: 99%

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Morphology and damage mechanism of lignocellulosic fruit fibers reinforced polymer composites: a comparative study

NagarajaGanesh

Rekha

2019

SN Appl. Sci.

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This study exhibits and compares the damage mechanism and mechanical properties of the polymer composites reinforced with dry and matured fruit fibers obtained from Cocos nucifera and Luffa cylindrica fruits respectively. Composite samples are prepared using polyester resin and different weight proportion of these fibers ranging from 10 to 40 wt% in intervals of 10 wt% with random fiber orientation involving hand layup technique. Studies prove that the composites containing 30 wt% of the fibers exhibit optimum mechanical properties. The maximum flexural strength and impact strength of the Cocos nucifera composites obtained is 27 MPa and 12.22 kJ/m 2 whereas the corresponding values are 30 MPa and 24.88 kJ/m 2 for Luffa cylindrica composites. Load versus Deflection curve obtained for Cocos nucifera composites exhibit non-catastrophic failure with increased percent elongation showing the slow and steady ductile failure. On the contrary, Luffa cylindrica composites exhibit catastrophic failure with sudden abrupt brittle fracture. Fractured samples are examined to show the failure mode through scanning electron microscope and are reported.

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Section: Impact Strengthsupporting

confidence: 75%

Section: Flexural Strengthsupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

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Morphology and damage mechanism of lignocellulosic fruit fibers reinforced polymer composites: a comparative study

NagarajaGanesh

Rekha

2019

SN Appl. Sci.

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“…However, researches have considered scanning electron microscopy most often for inspecting the fiber surface morphology, voids presence, fiber/matrix interaction, and so on. Few researches scanned pure luffa samples [55,67,69], while others involved the following matrices: epoxy [44,50,51,59,[61][62][63]89,91], polyester [60,66,96], polypropylene [68], vinyl ester [64], geopolymer [100], pre-gelatinized cassava starch [101]. SEM micrographs of untreated and treated fibers are shown in Figures 3 and 4; FESEM micrographs of treated luffa/epoxy are illustrated in Figure 5.…”

Section: Microscopymentioning

confidence: 99%

“…Generally, an X-ray diffraction test (XRD) helps in evaluating the crystallographic nature of natural fiber composites like LNFC, as well as determining the impact of chemical treatments on the crystalline nature. Recent research implemented XRD to study LNFCs with an epoxy matrix [51], polyester matrix [65,66,96], resorcinol-formaldehyde [57,78], geopolymer [100], polylactic acid [58], and pure luffa fibers [27,55,67,69].…”

Section: X-ray Diffractionmentioning

confidence: 99%

Recent Developments in Luffa Natural Fiber Composites: Review

et al. 2020

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Natural fiber composites (NFCs) are an evolving area in polymer sciences. Fibers extracted from natural sources hold a wide set of advantages such as negligible cost, significant mechanical characteristics, low density, high strength-to-weight ratio, environmental friendliness, recyclability, etc. Luffa cylindrica, also termed luffa gourd or luffa sponge, is a natural fiber that has a solid potential to replace synthetic fibers in composite materials in diverse applications like vibration isolation, sound absorption, packaging, etc. Recently, many researches have involved luffa fibers as a reinforcement in the development of NFC, aiming to investigate their performance in selected matrices as well as the behavior of the end NFC. This paper presents a review on recent developments in luffa natural fiber composites. Physical, morphological, mechanical, thermal, electrical, and acoustic properties of luffa NFCs are investigated, categorized, and compared, taking into consideration selected matrices as well as the size, volume fraction, and treatments of fibers. Although luffa natural fiber composites have revealed promising properties, the addition of these natural fibers increases water absorption. Moreover, chemical treatments with different agents such as sodium hydroxide (NaOH) and benzoyl can remarkably enhance the surface area of luffa fibers, remove undesirable impurities, and reduce water uptake, thereby improving their overall characteristics. Hybridization of luffa NFC with other natural or synthetic fibers, e.g., glass, carbon, ceramic, flax, jute, etc., can enhance the properties of the end composite material. However, luffa fibers have exhibited a profuse compatibility with epoxy matrix.

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Valorization of Prickly Pear Seed and Olive Husk Agricultural Wastes for Plastic Reinforcement: The Influence on the Mechanical and Thermal Properties

Klaai

Hammiche

Boukerrou

2023

Macromolecular Symposia

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Currently, food waste is a major concern for businesses, governments, and consumers. Fruit processing creates many of by‐products, from undesirables to fruit skins, seeds, and fleshy parts. These by‐products make up to 30% of the initial mass of processed fruit. This goal can be achieved by transforming fruit waste into reinforcement and integrating it into polymeric materials. In this work, olive husk flours (OHF) and prickly pear seed flours (PPSF) are used as reinforcements of poly (lactic acid) (PLA) matrix. Initially, the physico‐chemical, particle size, spectroscopy (FTIR), and thermal characterization of its fibers are studied and compared. Then, the composite materials studied are manufactured with a twin‐screw extruder having a fiber content of 10%, 20%, and 30% by weight; its properties have been studied and compared. The characterization of these two fibers shows that the quantity of cellulose is greater in the OHF and that the latter is more thermally stable. For the composite material, the PLA /OHF are the most responsive in thermal and mechanical behaviors since their degradation temperatures are closer to pure PLA and the tensile modulus is higher compared to the PLA/PPSF composites. The equilibrium water uptake value is higher for composites reinforced with OHF than systems with PPSF.

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Extraction and characterization of lignocellulosic fibers fromLuffa cylindricafruit

Cited by 64 publications

References 33 publications

Morphology and damage mechanism of lignocellulosic fruit fibers reinforced polymer composites: a comparative study

Morphology and damage mechanism of lignocellulosic fruit fibers reinforced polymer composites: a comparative study

Recent Developments in Luffa Natural Fiber Composites: Review

Valorization of Prickly Pear Seed and Olive Husk Agricultural Wastes for Plastic Reinforcement: The Influence on the Mechanical and Thermal Properties

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