Mechanical and morphological properties of luffa/carbon fiber reinforced hybrid composites

Ashok, K.G.; Kalaichelvan, K.; Elango, V.; Damodaran, Ajith; Gopinath, B.; Raju, M. Gopi

doi:10.1016/j.matpr.2020.05.716

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…Although the LF composite had an RH value lower than the other treatments, it was higher than the value found by 57 for composites of polypropylene without reinforcement (58.90 ± 6.36) and polypropylene/fiberglass (68.93 ± 4.46). 58 studying hybrid composites reinforced with Luffa and carbon fibers, concluded that the increase in the RH resulted from the higher volume of synthetic carbon fibers combined with the Luffa , contributing to the increase in the stiffness of the composites and consequently higher hardness values.…”

Section: Resultsmentioning

confidence: 99%

Characterization of polyester composites reinforced with natural fibers from Luffa cylindrica

Paula

Melo

Silva

et al. 2022

Journal of Composite Materials

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Concerns about global warming, environmental preservation, overexploitation of raw materials, and the development of new technologies are increasing. This has been attracting increasing interest in composites reinforced with natural fibers, mainly to replace synthetic materials. In this context, the present research work aimed to demonstrate the technical feasibility of the production of polyester-polymeric-matrix composites reinforced with fibers of Luffa cylindrica and a hybrid with fiberglass. The composites' physical properties (density, moisture content, water absorption, and thickness swelling) and mechanical properties (tensile, bending strength, and Rockwell hardness (RH)) were assessed. The composites were produced through cold pressing in a closed mold. The experiment was performed according to an entirely randomized design with two replicates per treatment and the means were compared by the Tukey test at 95% probability. The results demonstrated that the reinforcement with the Luffa fibers promoted a decrease in the density of the composites, with a minimum value of 1.01 g cm−3. In the assays of tensile strength, the reinforced composite presented a value of 10.20 MPa for this property, while for the bending strength, the value was 18.04 MPa. When the Luffa fibers were employed in the hybrid composite, the bending strength reached 105.12 MPa. In general, the composites reinforced with the plant fibers and the hybrid had physical and mechanical properties permitting their employment for several end-uses, according to the characteristics of each one. The new composites are partially biodegradable, sustainable, and light.

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Section: Resultsmentioning

confidence: 99%

Characterization of polyester composites reinforced with natural fibers from Luffa cylindrica

Paula

Melo

Silva

et al. 2022

Journal of Composite Materials

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“…The epoxy matrix was used to fabricate luffa and carbon fiber reinforced composites with weight percentages of 40/0, 20/20, 25/15, and 15/25. The mechanical properties of the tested samples were improved with the increased percentage of carbon fiber and luffa fiber [13]. The type of fibres is the factor that has the second-largest impact on mechanical properties after the volume fraction of the fibre.…”

Section: Introductionmentioning

confidence: 96%

Experimental Investigation on Mechanical and Viscoelastic properties of Kenaf, Basalt and Carbon Fiber reinforced Hybrid Epoxy Polymer Composites

Indra Reddy,

Manikanth,

Madhava Rao

et al. 2024

J. Phys.: Conf. Ser.

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In this study, a hybrid polymer composite reinforced with natural fibers such as Kenaf and Basalt, as well as carbon fiber was developed and analyzed for mechanical properties of the composite with varying fiber content and orientation. The composites were made using a hand layup process in which the plies were alternately stacked. Further, specimens were cut from the fabricated laminate according to ASTM standards. For the tensile and flexural test was conducted using a Universal Testing Machine (UTM). It is noticed that a hybrid composite made up of both natural fibers and carbon fiber has shown greater strength than a composite made up of only natural fibers with the same volume percentage of fiber. Furthermore, it is observed that the hybrid fiber composite in equal proportion is shown maximized strength.

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“…In Brazil, the loofah is widely cultivated in the North and Northeast regions, where it is used as bath sponges and to produce biodiesel, making of insulation boards, and wastewater treatment [1,7,[11][12][13]. The mature bushing presents a fibrous structure with excellent properties of resistance, stiffness, and energy absorption capacity, in addition to having a low cost, being light, abundant in nature, and having a morphology that favors good fiber-matrix adhesion [7,14,15]. Adeyanju et al [16] cited that polymeric composites reinforced with vegetal loofah present average tensile strength values ranging from 13 to 36 MPa, showing potential for use as reinforcement in composites.…”

Section: Introductionmentioning

confidence: 99%

Does the Layer Configuration of Loofah (Luffa cylindrica) Affect the Mechanical Properties of Polymeric Composites?

Paula,

Melo,

Albuquerque

et al. 2024

J. Compos. Sci.

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The arrangement of layers of natural long fibers that compose a polymeric composite can result in a final material with greater mechanical strength, in addition to replacing synthetic glass and carbon fibers. This study proposed different configurations of layers of loofah fibers (Luffa cylindrica) to produce reinforced polymeric–polyester composites, determining their potential mechanical properties such as flexural strength and Rockwell hardness. The layers were arranged by varying parallel and perpendicularly the direction of the loofah fibers pieces. The reinforcement decreased the density of all composites, with the lowest value, 1.03 g cm−3, indicated by the configuration 90°/0°/90°. The composites in the configuration 0°/90°/0° presented the highest value among the reinforced compositions (10.8 MPa), in addition to the highest rigidity value during bending tests (774.8 MPa). In the Rockwell hardness tests, the treatment reinforced with fibers in the configuration 90°/90°/90° had the highest value among all experimental treatments with a value of 86.9 HHR. The configuration angle of the loofah layers has a significant impact on the mechanical performance of the composites and should be taken into account in their confection. Furthermore, composites reinforced with loofah fibers in different configurations have physical–mechanical properties that qualify them for non-structural applications in indoor environments.

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Mechanical and morphological properties of luffa/carbon fiber reinforced hybrid composites

Cited by 8 publications

References 12 publications

Characterization of polyester composites reinforced with natural fibers from Luffa cylindrica

Characterization of polyester composites reinforced with natural fibers from Luffa cylindrica

Experimental Investigation on Mechanical and Viscoelastic properties of Kenaf, Basalt and Carbon Fiber reinforced Hybrid Epoxy Polymer Composites

Does the Layer Configuration of Loofah (Luffa cylindrica) Affect the Mechanical Properties of Polymeric Composites?

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