PLA/banana fiber based sustainable biocomposites: A manufacturing perspective

Komal, Ujendra Kumar; Lila, Manish Kumar; Singh, Inderdeep

doi:10.1016/j.compositesb.2019.107535

Cited by 112 publications

(43 citation statements)

References 49 publications

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“…Values of D are in the range of 10 À8 and a similar range of values for D have been reported in other research studies. 36,47 For the nonhybrid composite samples, hemp fiber-reinforced composite (S1) showed the highest diffusion coefficient and hence maximum moisture absorption percentage. On the other hand, flax fiber-reinforced composite (S5) showed the lowest value of the diffusion coefficient and hence the lowest water intake capability.…”

Section: Water Absorption Resultsmentioning

confidence: 99%

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Saha

Kumar

Zindani³

2021

Polymer Composites

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The recent development of natural fiber-reinforced polymer composites have shown innumerable economic and environmental benefits for a vast array of engineering applications. It is quintessential to investigate the effect of water absorption on the composites that remain in the water for a maximum of their intended service period. This study is an effort in this direction that investigates the effect of water absorption on thermo-mechanical properties of flaxhemp-reinforced epoxy composites fabricated using compression hand layup technique with different weight fraction of fiber. The fabricated composites have been characterized physically (density and water absorption), thermomechanically (tensile, flexural, thermal conductivity, and dynamical mechanical analysis), and morphologically (scanning electron microscopy [SEM]). The analysis revealed that hemp-reinforced composites (S1) had the highest water absorption capabilities in comparison to the flax-reinforced composites (S5).Higher water absorption capability had an adverse effect on the mechanical properties of fabricated composites. However, hybrid composites (S2, S3, and S4) reported better performance with regard to S1. The increased water content, however, increased the thermal conductivity of composites and maximum has been revealed for S1 (0.82 W/mK) and minimum for S5 (0.48 W/mK). The water molecules showed detrimental effects on the viscoelastic properties and revealed S3 have better interlocking bond with the lowest reduction in storage modulus (12%) and glass transition temperature (4 C) in comparison to S1 (30%) under wet conditions. A comparative analysis of the thermo-mechanical properties was also made for developed composites under dry, saturated, and re-dried conditions. The SEM has been used to characterize the morphological and fracture behavior of the fabricated composites under the influence of water uptake. The effects of water molecules on the hygrothermal aging index and diffusion co-efficient have also been discussed. Overall, the hybridization of

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Section: Water Absorption Resultsmentioning

confidence: 99%

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Saha

Kumar

Zindani³

2021

Polymer Composites

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“…In order to reduce the intense fiber breakage during compounding, direct fiber injection molding (DM) technology has been gaining popularity in recent years. [ 18,19 ] Fiber rovings are directly incorporated into the end zone of the injection molding to minimize the fiber breakage and conserve the length of the fibers. A number of research projects have been reported on the effect of DM on the mechanical performance of FRPC.…”

Section: Introductionmentioning

confidence: 99%

Effect of a Small Amount of Synthetic Fiber on Performance of Biocarbon‐Filled Nylon‐Based Hybrid Biocomposites

Chang

Abdelwahab

Kızıltaş

et al. 2021

Macro Materials & Eng

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Advanced hybrid biocomposites are engineered from nylon 6, waste wood biosourced carbon (biocarbon) with a low content of synthetic fiber for lightweight auto‐parts uses. The novel engineering process through direct injection molding of only 2 wt% synthetic fibers in the form of masterbatch with 20 wt% biocarbon, results outstanding performance of the resulting nylon biocomposites. Such uniquely developed biocomposites show tensile strength of 105 MPa and tensile modulus of 5.14 GPa with a remarkable heat deflection temperature (HDT) of 206 °C. The direct injection molding of synthetic fiber retains the length ≈3 times higher as compared to traditional extrusion and injection molding; resulting greater degree of entanglement and composite reinforcement effectiveness in the hybrid biocomposites. Highly dimensionally stable nylon 6 biocomposites with a very low coefficient of linear thermal expansion results through reinforcing ability of the sustainable biocarbon and small amount of synthetic fiber.

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“…Injection molding and compression molding were used by Komal et al, [ 96 ] to process banana/PLA composites. They utilized TGA and DMA to study thermal behaviours of the composites.…”

Section: Fiber‐reinforced Plamentioning

confidence: 99%

Flame retardancy and thermal stability of agricultural residue fiber‐reinforced polylactic acid: A Review

et al. 2020

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Biocomposites containing natural fibers and biopolymers are an ideal choice for developing substantially biodegradable materials for different applications. Polylactic acid is a biopolymer produced from renewable resources and has drawn numerous interest in packaging, electrical, and automotive application in recent years. However, its potential application in both electrical and automotive industries is limited by its flame retardancy and thermal properties. One way to offset this challenge has been to incorporate natural or synthetic flame retardants in polylactic acid (PLA). The aim of this article is to review the trends in research and development of composites based on agricultural fibers and PLA biopolymers over the past decade. This article highlights recent advances in the fields of flame retardancy and thermal stability of agricultural fiber‐reinforced PLA. Typical fiber‐reinforced PLA processing techniques are mentioned. Over 75% of the studies reported that incorporation of agricultural fibers resulted in enhanced flame retardancy and thermal stability of fiber‐reinforced PLA. These properties are further enhanced with surface modifications on the agricultural fibers prior to use as reinforcement in fiber‐reinforced PLA. From this review it is clear that flame retardancy and thermal stability depends on the type and pretreatment method of the agricultural fibers used in developing fiber‐reinforced PLA. Further research and development is encouraged on the enhancement of the flame retardancy properties of agricultural fiber‐reinforced PLA, especially using agricultural fibers themselves as flame retardants as opposed to synthetic flame retardants that are typically used.

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PLA/banana fiber based sustainable biocomposites: A manufacturing perspective

Cited by 112 publications

References 49 publications

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Effect of a Small Amount of Synthetic Fiber on Performance of Biocarbon‐Filled Nylon‐Based Hybrid Biocomposites

Flame retardancy and thermal stability of agricultural residue fiber‐reinforced polylactic acid: A Review

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