Characterization of <i>Luffa cylindrica</i> fibers and the effect of water aging on the mechanical properties of its composite with polyester

Seki, Yoldaş; Sever, Kutlay; Erden, Seçkin; Sarıkanat, Mehmet; Neşer, Gökdeniz; Özes, Çiçek

doi:10.1002/app.34744

Cited by 68 publications

(42 citation statements)

References 33 publications

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“…This treatment removes a certain amount of lignin, wax, and hemicelluloses of the fiber cell wall, depolymerizes cellulose, and exposes the short-length cellulose fibril. The ionization of hydroxyl groups of fibers into alkoxide increases the fiber strength and stiffness and hence, increases mechanical properties (Demir et al 2006;Seki et al 2011). The weight changes of the fibers after alkali treatments were determined gravimetrically and a loss of weight was observed near 2%.…”

Section: Chemical Treatment Of Fiber Surfacementioning

confidence: 99%

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Fabrication, Characterization, and Evaluation of Luffa cylindrica Fiber Reinforced Epoxy Composites

Saw

Purwar²,

Nandy³

et al. 2013

BioResources

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Because of the increasing awareness of the environment and energy issues, as well as advances in technology, the areas of application for annual plant fiber functional materials are expanding. In this work, two chemical treatments, alkalization (2 h agitation with 5% NaOH) and furfurylation (graft furfuryl alcohol followed by oxidation with (1N) NaClO 2 solution), were conducted on Luffa cylindrica fiber surfaces. The grafting of furfuryl alcohol followed by oxidation-generated quinines showed better results than alkaline treatment with respect to enhancement of surface area and hydrophobicity as well as wax, lignin, and hemicellulose extraction. The efficiency of chemical treatments was verified by elemental analysis and FTIR spectroscopy. Differential scanning calorimetry, thermo-gravimetric analysis, scanning electron microscopy, water absorption, and mechanical tests were performed to determine the thermal, mechanical, and morphological properties of untreated and chemically treated luffa fiber reinforced epoxy composites. Microstructures of the composites were examined to determine the mechanisms for the fiber-matrix interaction, which affects the thermal stability, water absorption, and mechanical behavior of the composites. The data from the water absorption process of composites at various temperatures were analyzed using a diffusion model based on Fick's law.

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Section: Chemical Treatment Of Fiber Surfacementioning

confidence: 99%

“…1. Parts of the plant are used to create bath or kitchen sponges, a natural jaundice remedy (juice), home insulation, furniture, and various other products (Demir et al 2006;Seki et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Fabrication, Characterization, and Evaluation of Luffa cylindrica Fiber Reinforced Epoxy Composites

Saw

Purwar²,

Nandy³

et al. 2013

BioResources

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“…In these investigations, the reported mechanical properties such as tensile strength, flexural strength, Young's modulus, and tangent modulus of untreated SGF reinforced composites were less than those obtained by treated [17]. These authors have shown that when the modified fiber is added to polymer matrix, the composites exhibit a significant increase in mechanical properties as compared to the untreated ones.…”

Section: Introductionmentioning

confidence: 98%

Preparation and Characterization of Raw and Chemically Modified Sponge-Gourd Fiber Reinforced Polylactic Acid Biocomposites

Al-Mobarak¹,

Gafur²,

Mina³

2018

MSA

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This research work has been undertaken to fabricate environmentally friendly biocomposites for biomedical and household applications. Sponge-gourd fibers (SGF) obtained from Luffa cylindrica plant were chemically treated separately using 5 and 10 wt% NaOH, acetic anhydride and benzoyl chloride solutions. SGF reinforced polylactic acid (PLA) biocomposites were fabricated using melt compounding technique. Surface morphological, structural, mechanical and thermal properties, as well as antibacterial activities of raw and chemically modified SGF reinforced PLA (SGF-PLA) composites were characterized by field emission scanning electron microscopy, Fourier transform infrared spectrometry, X-ray diffractometry, universal testing method, thermogravimetry, and Kirby-Bauer agar diffusion method, respectively. Surface morphology indicates that after treatment of fibers, the interfacial adhesion between PLA and fibers is improved. X-ray diffractometry result shows that chemical treatment of fibers improves the crystallinity and exhibits new chemical bond formation in the composites. After chemical treatment, compressive strength of the composites is found to increase by 10% -35%. The thermal stability of the treated fiber reinforced composites is also found to increase significantly. The composites have no antibacterial activities and no cytotoxic effect on non-cancer cell line. Soil burial test has confirmed that the composites are biodegradable. Benzoyl chloride treatment of fibers shows superior mechanical properties and enhances thermal stability among the composites.

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“…Luffa cylindrica fibers (also called loofah or sponge gourd) are a noteworthy alternative to mineral fibers. Their low cost and low density are the major benefits for their use in composites (Boynard and d'Almeida 2000;Chen and Lin 2005;Paglicawan et al 2005;Zampieri et al 2006;Demir et al 2008;Kocak 2008;Seki et al 2012;Shen et al 2013). However, the characteristics (especially the dynamic or modal properties) of these new materials should be investigated in order to use them effectively in practical applications such as vibration attenuation of machines and sound isolation of conference rooms.…”

Section: Introductionmentioning

confidence: 99%

“…There have been some studies on the morphology, thermodynamics, energy absorption, and elastic properties of luffa materials (Boynard and D'Almeida 2000;Chen and Lin 2005;Paglicawan et al 2005;Zampieri et al 2006;Demir et al 2008;Kocak 2008;Ghali et al 2009;Satyanarayana et al 2009;Seki et al 2012;Shen et al 2012Shen et al , 2013Kocak et al 2013;Genc 2015;Genc and Koruk 2016a). Koruk and Genc (2015) showed that the sound absorption of luffa composites is considerably high.…”

Section: Introductionmentioning

confidence: 99%

Identification of the Dynamic Characteristics of Luffa Fiber Reinforced Bio-Composite Plates

Genc¹,

Körük²

2017

BioResources

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Luffa cylindrica plant fiber is a new biodegradable engineering material. However, the dynamic behaviors of these new green materials or their composites should be explored to consider them for practical applications. The dynamic characteristics including modal behavior and the elastic and sound isolation properties of luffa-based bio-composite plates were explored in this study. Structural frequency response function measurements were conducted using a few luffa bio-composite plates to identify their modal behavior. The modal frequencies and loss factors of the luffa bio-composite plates were identified by analyzing the frequency response function measurements using a few modal analysis methods such as half-power, circle-fit, and line-fit. The same luffa bio-composite structures were modelled using a finite element formulation with damping capability, and the elastic moduli of the composite plates were identified. In addition, the transmission loss levels of the same luffa composite samples were measured using the impedance tube method. The results showed that luffa composite structures have considerably high stiffness (elasticity modulus: 2.5 GPa), damping levels (loss factor: 2.6%), and transmission loss level (25 to 30 dB for a 1 cm thickness), and their mechanical properties are promising as an alternative disposable material for noise and vibration control engineering applications.

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Characterization of Luffa cylindrica fibers and the effect of water aging on the mechanical properties of its composite with polyester

Cited by 68 publications

References 33 publications

Fabrication, Characterization, and Evaluation of Luffa cylindrica Fiber Reinforced Epoxy Composites

Fabrication, Characterization, and Evaluation of Luffa cylindrica Fiber Reinforced Epoxy Composites

Preparation and Characterization of Raw and Chemically Modified Sponge-Gourd Fiber Reinforced Polylactic Acid Biocomposites

Identification of the Dynamic Characteristics of Luffa Fiber Reinforced Bio-Composite Plates

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