Natural Composite Reinforced by Lontar (<i>Borassus flabellifer</i>) Fiber: An Experimental Study on Open-Hole Tensile Strength

Bale, Jefri S.; Boimau, Kristomus; Nenobesi, Marselinus

doi:10.1155/2017/7685047

Cited by 8 publications

(7 citation statements)

References 16 publications

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Section: Influence Of Notch and Drilled Open Holementioning

confidence: 70%

“…This could be related to the redistribution of stress within the specimen such that failure occurred in the region away from the holes while the contours of the holes remained prevalently intact. Thus, better strength retention was observed in that last case [85]. The previous studies were limited by the fact that they studied hole patterns either in the center of the specimen or distributed within the boundary of the specimen.…”

Section: Influence Of Notch and Drilled Open Holementioning

confidence: 90%

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Drilling Parameters and Post-Drilling Residual Tensile Properties of Natural-Fiber-Reinforced Composites: A Review

et al. 2023

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This review highlights the influence of parameters on the drilling characteristics of biocomposites including natural fibers. The particular structure of natural fibers, including their hierarchized geometry, which potentially causes fibrillation, can result in an increased chance of irregularity of the hole and a more complex mode of delamination or, in general terms, damage to the composite. On the other hand, to attain an effective junction of the laminates in a structure, a nut–bolt procedure must be selected, which requires the performance of a drilling operation. This is becoming increasingly important since the fields of application for natural fibers and their variety have been steadily growing in the last few decades. Additionally, adequately performed drilling operations can address considerations related to circular economy. The drilling characteristics evaluated herein include thrust force, torque, surface roughness, and the delamination factor at the entry and exit of the drilling tool. The variation in tensile strength, stiffness, and strain propagation due to the presence of open holes of various sizes, the number of holes, the holes’ patterns, the effect of the type of fiber of the notches, the fiber architecture, and the fibers’ stacking sequence in biocomposites have also been discussed.

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Section: Influence Of Notch and Drilled Open Holementioning

confidence: 70%

Section: Influence Of Notch and Drilled Open Holementioning

confidence: 90%

Drilling Parameters and Post-Drilling Residual Tensile Properties of Natural-Fiber-Reinforced Composites: A Review

et al. 2023

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“…Serat alam yang berasal dari batang, kecuali bambu dan kayu, yang tumbuh di Indonesia atau tanaman dari daerah tropis memiliki jenis spesies dan jumlah varitas yang sangat banyak tetapi belum dimanfaatkan secara optimal untuk aplikasi teknik. Serat kayu dan bambu telah dikenal mampu digunakan sebagai material struktural [6].…”

Section: Pendahuluanunclassified

Pemanfaatan Serat Rami (Boehmeria Nivea) Sebagai Bahan Komposit Bermatrik Polimer

ilham¹,

Istiqlaliyah²

2019

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Perkembangan material teknik terutama komposit polimer yang meliputi bahan-bahan baru (high-tech materials), proses manufaktur dan aplikasi teknik dekade ini menunjukkan peningkatan yang cukup sinifikan. Masalah yang timbul seiring dengan perkembangan teknologi bahan komposit polimer tersebut adalah bagaimana memanfaatkan bahan-bahan yang sumber ketersediaannya cukup banyak yang mampu diregenerasikan untuk mengantisipasi krisis bahan terutama jenis plastik polimer, dimana tersedianya sumber bahan dipengaruhi oleh sumber minyak bumi yang tidak bisa diperbaharui. Dari sinilah timbul satu ide atau gagasan, bagaimana memanfaakan serat alam sebagai bahan penunjang atau bahan pengganti komposit yang terbuat dari polimer. Serat alam yang dipilih adalah serat rami (boihmera nivea), karena komposisi serat yang cukup bagus dibandingkan dengan serat alam yang lain. Permasalahan yang diangkat dalam penelitian ini adalah, untuk mengetahui seberapa besar kekuatan tarik serat setelah mendapat proses tratment. Proses treatment yang dilakukan adalah dengan merendam serat kedalam beberapa larutan kimia, yaitu NaOH 5%, ethanol 99%, dan methyl ethy ketone (MEK). Setelah proses treatment, serat kemudian diuji kekuatan tariknya. Hasil yang diperoleh dari pengujian kekuatan tarik ini adalah, semakin tinggi konsentrasi NaOH maka akan semakin menurunkan kekuatan tarik serat. Sedangkan untuk pelarut ethanol diperoleh kekuatan tarik sebesar 1252,40 ± 119,35 Mpa. Dan untuk pelarut methyl ethyl ketone diperoleh kekuatan tarik sebesar 1258,81 ± 218,37 MPa.

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“…In previous research work by the author [13], [14] develops Mockups and natural ber-reinforced polymer composites made from recently discovered lignocellulosic-based biocomposites made from thermoset and thermoplastic polymers that are both biobased and non-biobased. Numerous chemical treatments, such as compatibilizers, alkali, saline, and alkali-saline, as well as the addition of cross-linking agents, including glutaraldehyde (GLA) and epichlorohydrin (EP), are examples of surface modi cation approaches.…”

Section: Introductionmentioning

confidence: 99%

“…Recent research has concentrated on producing natural ber-reinforced polymer composites that are lightweight [1], [13], [14], [16]. Cow dung bers are a promising candidate as reinforcement for resin-based polymer composites, according to a comparative study between corn stalk ber composites and sisal ber composites.…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of Grewia Ferruginea Fiber Reinforced Polyester Matrix Composite Materials

Seyoum,

Gnanadurai,

Asratie

et al. 2024

Preprint

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Researchers from all around the world have been paying close attention to natural fiber because of its economical and environmentally favorable benefits. The botanical name Grewia ferruginea, sometimes known locally as Lenquata, is one source of natural fiber among other plant fibers. But so far, the Grewia ferruginea plant has not been used as a reinforcing material for composites. The goal of this research project is to create polyester matrix composites reinforced with short Grewia ferruginea plant fiber that measures 10 mm, 20 mm, and 30 mm. The ratio of fiber to polyester will be 15/85%, 25/75%, and 35/65% for each of the prepared short natural fiber lengths or sizes. To ascertain the ideal fiber weight ratio, fiber length, and the associated maximum tensile and flexural qualities through experimentation. The fiber from the ferruginea plant was extracted using the traditional water retting method. The Grewia ferruginea plant submerged in water was then meticulously cleaned, and the fiber bundle was gradually split into a single strand by hand (with metal teeth). Following extraction, the fiber was subjected to a chemical treatment at a 5% concentration of sodium hydroxide (NaOH), which improved the bond and interfacial strength between the Grewia ferruginea fiber and matrix. The composite is made using hand lay-up techniques with varying fiber/matrix ratios and fiber lengths (sizes). Additionally, the specimen's tensile and flexural qualities were experimentally examined in line with ASTM 638 and ASTM 790 standards, respectively. The findings indicated that the average tensile strength of a single fiber from Grewia ferruginea plants is 214 MPa, with a density of 1.11 g/cm3. Furthermore, the Grewia ferruginea fiber-reinforced polyester composite, which was created with a 10 mm fiber length, a 25% fiber weight ratio, and a 75% polyester matrix composite, exhibits superior performance. That is stronger than any combination that was used to create the composite in this investigation, with 18.3 MPa tensile and 35.2 MPa flexural strength.

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Natural Composite Reinforced by Lontar (Borassus flabellifer) Fiber: An Experimental Study on Open-Hole Tensile Strength

Cited by 8 publications

References 16 publications

Drilling Parameters and Post-Drilling Residual Tensile Properties of Natural-Fiber-Reinforced Composites: A Review

Drilling Parameters and Post-Drilling Residual Tensile Properties of Natural-Fiber-Reinforced Composites: A Review

Pemanfaatan Serat Rami (Boehmeria Nivea) Sebagai Bahan Komposit Bermatrik Polimer

Experimental Characterization of Grewia Ferruginea Fiber Reinforced Polyester Matrix Composite Materials

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