A review on natural fiber reinforced hybrid composites: chemical treatments, manufacturing methods and potential applications

Prabhu, L.; Krishnaraj, V.; Sathish, S.; Gokulkumar, S.; Karthi, N.; Rajeshkumar, L.; Balaji, Dhanapal; Vigneshkumar, N.; Elango, K.

doi:10.1016/j.matpr.2021.01.280

Cited by 55 publications

(31 citation statements)

References 43 publications

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“…The substance medicines were improved the situation the enhancement of the hold between the fiber and lattice. The water maintenance of composites was decreased and their mechanical properties are pushed ahead [8]. In a mixture common fiber composite there are at least two distinct kinds of characteristic fiber utilized in a similar framework.…”

Section: Introduction *mentioning

confidence: 99%

Influence of Laying Angles in Reinforcement of Epoxy in Sisal Plain Woven Structures

Gopinath¹,

Suresh

2022

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This study is about microstructure characterization and understanding the flexural properties of plain-woven sisal fabric reinforced epoxy composites. Vibrational Spectroscopy (FTIR) and SEM (Scanning Electron Microscopy) were used to describe the plain-woven sisal fabric and sisal fiber reinforced epoxy composites. Two laying angles were incorporated into the epoxy resin (10 percent), i.e. [0°/90°] and [0°/45°]. To isolate the effect of epoxy type and whether woven sisal fibers were used, an analytical design that is based on [0°/90°] and [0°/45°] orientation used the results. Epoxy treated with woven sisal fibers had a higher tensile (0.62 GPa) and flexural modulus (0.69 GPa) with tensile (17 MPa) and flexural strength (14 MPa) while being applied to a surface that is sloped at 0°/45° and which generates a displacement force of approximately 12 mm and strain 15.8 %. While conventional Weibull failure theory has long been widely used to explain the failure of brittle bulk materials, this new equation integrates that theory with the lay angle effect on flexural strength in plain sisal to calculate flexural strength reinforcement in epoxy. This new method can be applied to any fiber reinforcement, regardless of the type, and in terms of the failure of that reinforcement, which is governed by linear elastic fracture mechanics, and agreement between experimental data sets is excellent. According to our expectations, this theoretical study is going to provide a new method for the advanced strain engineering system to be built using reinforced fibers.

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Section: Introduction *mentioning

confidence: 99%

Influence of Laying Angles in Reinforcement of Epoxy in Sisal Plain Woven Structures

Gopinath¹,

Suresh

2022

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“…The fiber treatment with BC decreases the hydrophilic nature of natural fibers and strengthens fiber attachment to the matrix, improving the bio-composites' strength [23,24]. Alkali pre-treatment is used during the benzoylation process.…”

Section: Introductionmentioning

confidence: 99%

“…The fiber's -OH groups are substituted by the benzoyl groups, which binds to the cellulose backbone [25]. Prabhu et al [24] addressed that the benzoylation of fiber improved adhesion to the fiber-matrix, significantly improved composite strength and decreased water absorption. The treatment improved the wettability of Impomea pes-caprae fiber and epoxy composites, resulting in stronger bonding and increased overall composite strength [26].…”

Section: Introductionmentioning

confidence: 99%

Physical, Mechanical, and Morphological Properties of Treated Sugar Palm/Glass Reinforced Poly(Lactic Acid) Hybrid Composites

et al. 2021

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This research was performed to evaluate the physical, mechanical, and morphological properties of treated sugar palm fiber (SPF)/glass fiber (GF) reinforced poly(lactic acid) (PLA) hybrid composites. Morphological investigations of tensile and flexural fractured samples of composites were conducted with the help of scanning electron microscopy (SEM). Alkaline and benzoyl chloride (BC) treatments of SPFs were performed. A constant weight fraction of 30% total fiber loading and 70% poly(lactic acid) were considered. The composites were initially prepared by a Brabender Plastograph, followed by a hot-pressing machine. The results reported that the best tensile and flexural strengths of 26.3 MPa and 27.3 MPa were recorded after alkaline treatment of SPF, while the highest values of tensile and flexural moduli of 607 MPa and 1847 MPa were recorded after BC treatment of SPF for SPF/GF/PLA hybrid composites. The novel SPF/GF/PLA hybrid composites could be suitable for fabricating automotive components.

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“…The adhesion can be improved either by using chemical treatments to enhance interfacial, electrostatic or chemical bonding; or by physical means to improve mechanical interlocking between the fibre and matrix [5,6]. There are many reviews and publications in the open literature explaining different types of chemical- [4,[6][7][8][9][10] and physical treatments [4,11,12] and characterization of Fibers 2022, 10, 2 2 of 20 interfacial properties [13]. Amongst chemical treatments, silane treatments have been seen to be most effective in improving compatibility between the two phases, i.e., reinforcing fibres and the polymer matrix [1,2,5].…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Commingled Flax/PP and Flax/PLA Fibres by Silane or Atmospheric Argon Plasma Exposure to Improve Fibre–Matrix Adhesion in Composites

Pornwannachai

Horrocks

Kandola

2021

Fibers

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Challenges faced by natural fibre-reinforced composites include poor compatibility between hydrophilic fibres such as flax and hydrophobic polymeric matrices such as polypropylene (PP) or poly(lactic acid) (PLA), and their inherent flammability. The former promotes weak interfacial adhesion between fibre and matrix, which may be further compromised by the addition of a flame retardant. This paper investigates the effect that the added flame retardant (FR), guanylurea methylphosphonate (GUP) and selected surface treatments of commingled flax and either PP or PLA fabrics have on the fibre/matrix interfacial cohesive forces in derived composites. Surface treatments included silanisation and atmospheric plasma flame exposure undertaken both individually and in sequence. 1-, 2- and 8-layered composite laminates were examined for their tensile, peeling and flexural properties, respectively, all of which yield measures of fibre-matrix cohesion. For FR-treated Flax/PP composites, maximum improvement was obtained with the combination of silane (using vinyltriethoxysilane) and plasma (150 W) treatments, with the highest peeling strength and flexural properties. However, for FR-treated Flax/PLA composites, maximum improvement in both properties occurred following 150 W plasma exposure only. The improvements in physical properties were matched by increased fibre-matrix adhesion as shown in SEM images of fractured laminates in which fibre-pullout had been eliminated.

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A review on natural fiber reinforced hybrid composites: chemical treatments, manufacturing methods and potential applications

Cited by 55 publications

References 43 publications

Influence of Laying Angles in Reinforcement of Epoxy in Sisal Plain Woven Structures

Influence of Laying Angles in Reinforcement of Epoxy in Sisal Plain Woven Structures

Physical, Mechanical, and Morphological Properties of Treated Sugar Palm/Glass Reinforced Poly(Lactic Acid) Hybrid Composites

Surface Modification of Commingled Flax/PP and Flax/PLA Fibres by Silane or Atmospheric Argon Plasma Exposure to Improve Fibre–Matrix Adhesion in Composites

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