Effect of Chemical Treatment and Fiber Loading on Mechanical Properties of<i>Borassus</i>(Toddy Palm) Fiber/Epoxy Composites

Reddy, K. Obi; Maheswari, C. Uma; Reddy, K. Ramakrishna; Shukla, Mukul; Muzenda, Edison; Rajulu, A. Varada

doi:10.1080/1023666x.2015.1054084

Cited by 51 publications

(22 citation statements)

References 34 publications

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“…In this regard, François et al [38] reported a decrease in lignin content of hemp fibers up to 24.5% after scCO2 treatment. The spectral analysis revealed that the untreated flax fiber consists of alkene, esters, aromatics, ketone, and alcohol belonging to cellulose, hemicellulose, and lignin (Table 1), as already reported in [21,40]. Upon CO 2 supercritical treatment, slight shifts could be observed for the characteristic bands of flax.…”

Section: Characterization Of Flax Yarns After Scco 2 Treatmentsupporting

confidence: 77%

Environmentally Friendly Surface Modification Treatment of Flax Fibers by Supercritical Carbon Dioxide

et al. 2020

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The present work investigates the effects of an environmentally friendly treatment based on supercritical carbon dioxide (scCO2) on the interfacial adhesion of flax fibers with thermoset matrices. In particular, the influence of this green treatment on the mechanical (by single yarn tensile test), thermal (by TGA), and chemical (by FT-IR) properties of commercially available flax yarns was preliminary addressed. Results showed that scCO2 can significantly modify the biochemical composition of flax fibers, by selectively removing lignin and hemicellulose, without altering their thermal stability and, most importantly, their mechanical properties. Single yarn fragmentation test results highlighted an increased interfacial adhesion after scCO2 treatment, especially for the vinylester matrix, in terms of reduced debonding and critical fragment length values compared to the untreated yarns by 18.9% and 15.1%, respectively. The treatment was less effective for epoxy matrix, for which debonding and critical fragment length values were reduced to a lesser extent, by 3.4% and 3.7%, respectively.

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Section: Characterization Of Flax Yarns After Scco 2 Treatmentsupporting

confidence: 77%

Environmentally Friendly Surface Modification Treatment of Flax Fibers by Supercritical Carbon Dioxide

et al. 2020

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“…Compared to studies dealing with fruit fibre-reinforced thermoplastics, the strength values of 'Toddy palm y'/PLA and 'Toddy palm b'/PLA are on the level of toddy palm fruit fibre-reinforced high density polyethylene (HDPE) [15] and slightly above the values of fruit fibre-reinforced polycaprolactone (PCL) [16] while Young's moduli of toddy palm/PLA composites are significantly higher. Reddy et al [14] achieved higher values for fruit fibre-reinforced EP compared to our toddy palm/PLA composites. Since the 'Toddy palm y' and 'Toddy palm b' have significantly higher strength values than the fruit fibres investigated by Reddy et al [14] (compare Tab.…”

Section: Composite Characteristicsmentioning

confidence: 45%

“…Other examples are the studies of Srinivasababu et al [11] who investigated fibres from the leaflet in UP, Prabowo et al [12] and Rashid et al [13] who analysed ijuk fibre-reinforced polypropylene (PP) and phenolic composites, respectively. Reddy et al [14], Maheswari et al [15] and Sarasini et al [16] examined the characteristics of fruit fibre bundles in combination with EP, high-density polyethylene (HDPE) or polycaprolactone (PCL) for potential composite applications.…”

Section: Introductionmentioning

confidence: 99%

Toddy Palm (Borassus Flabellifer) Fruit Fibre Bundles as Reinforcement in Polylactide (PLA) Composites: An Overview About Fibre and Composite Characteristics

Graupner

Narkpiban

Poonsawat

et al. 2019

Journal of Renewable Materials

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Toddy palm fruit have an apparent density below 0.8 g/cm³ and offer an interesting lightweight construction potential in polylactide (PLA) composites reinforced with 37 mass-% fibres. Single fibre bundles show similar mechanical properties compared with coir: tensile strength of 240 MPa, Young´s modulus of 3.8 GPa and an elongation at break of 31%. However, density and diameter (~ 50 µm) of fruit fibre bundles are significantly lower. The compression moulded composites have a density of 0.9 g/cm³ and achieved an unnotched Charpy impact strength of 12 kJ/m², a tensile strength of 25 MPa, Young's modulus of 1.9 GPa and an elongation at break of 9%. Due to the high porosity of the composites and the different stress-strain behaviour of fibre and matrix the fibre-reinforcement potential could not be fully used. Maximum stress of the composite was reached at the elongation at break of the PLA-matrix (~2%) while the fibre achieved its maximum stress at an elongation of ~31%. After reaching the maximum stress of the composite, the fibres were pulled out from the matrix with low energy absorption, resulting in a decrease in stress and a limited reinforcement potential. Additionally, the study investigates whether an insect attack by the Asian fruit fly on the mesocarp has a significant influence on the mechanical fibre characteristics. The results have shown that only the rough surface of the fibre bundles is smoothed by insect infestation. The mechanical properties were not significantly affected. For this reason insect-infested fruits of the toddy palm, which are no longer suitable for food production, can be used for the production of sustainable composite materials.

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“…Figures (B), , (B), and (B) reveal that the modulus behavior does not show any clear trend with respect to fiber length and fiber load. Sometimes shortest fiber composites are most stiff, other times they are most compliant.…”

Section: Resultsmentioning

confidence: 93%

“…This has given an impetus to the research in the field of polymer composites and researchers are faced with the challenge of bringing out better composite materials. As a result, various natural fibers have been explored for reinforcing polymer matrices . The advantages of using natural fibers for reinforcement of polymers are easy availability, renewability, biodegradability, low density, high specific strength, noncorrosive nature, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of murta bast fiber reinforced epoxy composites

Barbhuiya

Choudhury²,

Ismail

2016

J of Applied Polymer Sci

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The growing global concern over environment protection has led to the application of natural fiber reinforced polymer composites as alternative materials in manufacturing sectors. Various natural fibers are therefore being explored for reinforcement of polymer matrices. In the present work, murta bast fibers of varying length and weight percent are mixed randomly with the epoxy matrix and the composites are prepared from these mixtures by using the hand lay-up method. The composites are characterized on the basis of density, thermal gravimetric analysis, infrared spectroscopy, scanning electron microscopy, tensile strength, flexural strength, compressive strength, impact strength, and Rockwell hardness studies. Tensile, flexural, and compressive moduli of the composites are also determined. The tensile strength of the composite was analyzed in the light of the different analytical models. Composites containing 30 weight % fibers of length 25 or 35 mm have the optimum mechanical properties. Murta bast fiber has the characteristics to become a good natural material for reinforcement.

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Effect of Chemical Treatment and Fiber Loading on Mechanical Properties ofBorassus(Toddy Palm) Fiber/Epoxy Composites

Cited by 51 publications

References 34 publications

Environmentally Friendly Surface Modification Treatment of Flax Fibers by Supercritical Carbon Dioxide

Environmentally Friendly Surface Modification Treatment of Flax Fibers by Supercritical Carbon Dioxide

Toddy Palm (Borassus Flabellifer) Fruit Fibre Bundles as Reinforcement in Polylactide (PLA) Composites: An Overview About Fibre and Composite Characteristics

Characteristics of murta bast fiber reinforced epoxy composites

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