Effect of surface treatments on interfacial properties of natural intralaminar hybrid composites

Lima, Rosemere de Araujo Alves; Cavalcanti, Daniel Kioshi; Neto, Jorge S. S.; Costa, Hector Reynaldo Meneses; Banea, M. D.

doi:10.1002/pc.25371

Cited by 66 publications

(49 citation statements)

References 31 publications

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“…The mechanical properties of fibers (i.e., modulus and ultimate tensile strength) are related not only to the chemical composition of the fiber but also to its internal structure. The lower tensile properties of ramie compared to the curauá fibers as found in a previous study [21] explain the lower improvement in tensile strength of the S+R composite compared to S+C. On the other hand, the modulus of glass fiber is comparatively higher than that of the vegetable fibers used here, whereas the extensibility of glass is low compared to the sisal and curauá fibers [17].…”

Section: Tensile Testmentioning

confidence: 40%

“…The difference in chemical composition between natural fibers can result in different mechanical and thermal properties of the hybrid composites. Table 1 presents the chemical composition and mechanical properties of the natural fibers used in this work [19,21,23,31]. The properties of the glass fiber used were as follow: density (2.55 g/cm 3 ), tensile strength (2000-3500 MPa), Young's modulus (70-76 GPa) and elongation at break (1.8%-4.8%) [17,21].…”

Section: Methodsmentioning

confidence: 99%

“…This may be explained by the fact that the impact strength of the composite depends on the properties of the individual fibers used for preparation of hybrid intralaminar composites [43]. Lima et al [21] found that the tensile strength of ramie was 212.38 MPa, while for the sisal it was 398.48 MPa. They also showed that the diameter of ramie fiber (95 ± 5 µm) was smaller compared to sisal fiber (150 ± 1 µm), which may explain the lower increase in impact strength compared to other fibers used.…”

Section: Flexural Testmentioning

confidence: 99%

“…Several researchers investigated the effects of hybridization on the mechanical and thermal properties of hybrid composites reinforced with different vegetable fibers (i.e., jute, curauá, sisal, ramie, coconut, sugar palm, etc.) or natural fibers combined with glass fibers [14][15][16][17][18][19][20][21][22][23][24][25]. For example, Almeida et al [14] showed that hybrid composites in which 30 vol.% of glass fiber was replaced by curauá fiber was able to achieve similar results in terms of hardness, impact strength and dynamic mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Chemical composition, physical and mechanical properties of the natural fibers studied[19,21,23,31].…”

mentioning

confidence: 99%

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Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

et al. 2020

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The main objective of this work was to investigate the effect of hybridization on the mechanical and thermal properties of intralaminar natural fiber-reinforced hybrid composites based on sisal. Ramie, sisal and curauá fibers were selected as natural fiber reinforcements for the epoxy matrix based composites, which were produced by the hand lay-up technique. Tensile, flexural and impact tests were carried out according to American society for testing and materials (ASTM) standards to characterize the hybrid composites, while differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to evaluate the thermal properties. It was found that the mechanical properties are improved by hybridization of sisal based composites. The thermal analysis showed that the hybridization did not significantly affect the thermal stability of the composites. A scanning electron microscopy (SEM) was used to examine the fracture surface of the tested specimens. The SEM images showed a brittle fracture of the matrix and fiber breakage near the matrix.

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Section: Tensile Testmentioning

confidence: 40%

Section: Methodsmentioning

confidence: 99%

Section: Flexural Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Chemical composition, physical and mechanical properties of the natural fibers studied[19,21,23,31].…”

mentioning

confidence: 99%

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Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

et al. 2020

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The effect of multiscale hybridization on the mechanical properties of natural fiber‐reinforced composites

Queiroz

Cavalcanti

Neto

2021

J of Applied Polymer Sci

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The main objective of this work was to investigate the effect of reinforcements at different scales on the mechanical properties of natural fiber-reinforced composites. Pure jute and interlaminar hybrid jute/glass fiber-reinforced polymer composites were fabricated. Different types of fillers in two weight fractions (1 and 3 wt. %) were used as second reinforcements in the hybrid jute/ glass composites. Tensile, flexural, and impact tests were performed. It was found that the macroscale inter-play hybridization significantly improved the mechanical properties of the pure jute fiber based composites. When the fillers are used as second hybridization, the modified composites presented higher mechanical properties when compared to pure jute composites. However, the effect of fillers on the mechanical properties of the hybrid composites presented various trends due to the interaction between several factors (i.e., particle scale, content, and nature), which cannot always be separated. Increasing the synthetic filler content improved the tensile properties of the filled hybrid composites, while increasing the natural filler content worsen the tensile properties. The flexural strength of the multiscale hybrid composites was improved, while the impact properties were negatively affected.

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Effect of ultraviolet radiation and water spraying on the mechanical properties of multi‐walled carbon nanotubes reinforced natural fiber and hybrid composites

Neto

Queiroz

Cavalcanti

et al. 2021

J of Applied Polymer Sci

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The main objective of this study was to investigate the effect of aging by ultraviolet radiation and water spray on the mechanical properties of natural fiber and hybrid composites. Pure jute, hybrid jute/glass, and glass fiber‐reinforced composites were fabricated. All these types of composites were further modified with 0.6 wt% of multi‐walled carbon nanotubes (MWCNTs) and their mechanical behavior was compared to the unmodified specimens. Tensile and flexural tests were used to measure the mechanical properties of unaged (control) and aged specimens. A scanning electron microscopy analysis was used to examine the fracture surfaces of the specimens tested. It was found that the aging process affected the mechanical properties of the composites studied in different ways. For jute and jute + MWCNT composites the properties decreased with increased exposure time. The hybrid jute/glass composites (unmodified and MWCNT modified) were less affected by aging and showed an insignificant change in tensile strength. The hybrid + MWCNT composites, showed an increase of approx. 7% in Young's modulus (1000 h) and 9% (500 h) and 17%, (1000 h) in flexural modulus when compared to the unexposed specimens. The MWCNTs had a positive effect on the mechanical properties of the glass + MWCNT aged samples.

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Effect of surface treatments on interfacial properties of natural intralaminar hybrid composites

Cited by 66 publications

References 31 publications

Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

The effect of multiscale hybridization on the mechanical properties of natural fiber‐reinforced composites

Effect of ultraviolet radiation and water spraying on the mechanical properties of multi‐walled carbon nanotubes reinforced natural fiber and hybrid composites

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