Tree Age, Leaf Maturity and Exposure to Sunlight Influence Tensile Strength of Fibres in <i>Pandanus Utilis</i>

Rafidison, Barisoa Harijaona; Ramasawmy, Hareenanden; Chummun, Jaykumar; Florens, F. B. Vincent

doi:10.1080/15440478.2018.1558145

Cited by 5 publications

(10 citation statements)

References 12 publications

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“…The tests were carried out on Kruss Drop Shape Analyzer-DSA 100The tensile strength of the single bre obtained for the optimum treatment (0.5%w.t NaOH for 14h -SFOT) is 168.2 ± 12.6 MPa while the tensile strength of the untreated ber is 152.5± 84.1 MPa. An increase of 22 % in the tensile strength of the bre is recorded similar to the ndings of Ra dison et al (2018) [16]. A Oushabi et al (2017).…”

supporting

confidence: 89%

“…Thus, a second set of conditions, 2.5%wt NaOH for 2h (SFST) was conducted, which, according to Ra dison et al (2018), should result in a decrease of 40% in the tensile strength (120MPa). [16] A bre to solution ratio of 1 to 30 was used and the bres were completely immersed in the respective solution. After the appropriate soaking time, the bres were neutralized using distilled water and dried in an oven for 24h at 60 C.…”

Section: Alkaline Treatmentmentioning

confidence: 99%

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Better Wettability of Pandanus Utilis Alkaline Treated Fibres Tead to Higher Tensile Strengths of Composites.

L'Entete

Ramasawmy

2021

Preprint

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Composite materials made with synthetic fibres like E-glass, Kevlar or carbon have helped to provide a wide array of products to society with specific engineering properties. However, these materials have a high carbon footprint as well as being non-biodegradable. The use of natural fibre, as a substitution to these man-made fibres, has been studied and encouraging results are being obtained.In this study, the use of ‘Pandanus utilis’ fibre as a reinforcing agent in plastic was investigated with the aim of exploring specific properties such as the tensile strength of the fibre, its wettability and the effect of fibre length after treating the fibre with two different NaOH solutions. Results have shown that better reinforcement was obtained for the composites (11.10 ± 2.53MPa) with fibres subjected to a more aggressive treatment (2.5%NaOH for 2h) compared to the composite made with fibres having maximum tensile strength (168 ± 12MPa at 0.5% NaOH for 14h), due to a better hydrophilicity of the alkaline treated fibre (87.37° internal angle). Within the range of short chopped fibre length tested (6 to 15 mm), it was shown that there was a general decrease in the tensile strength of the composite.

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supporting

confidence: 89%

Section: Alkaline Treatmentmentioning

confidence: 99%

Better Wettability of Pandanus Utilis Alkaline Treated Fibres Tead to Higher Tensile Strengths of Composites.

L'Entete

Ramasawmy

2021

Preprint

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“…The two types of fibres (thin and thick fibre) on the P. utilis presented by Rafidison et al [13] have been observed in all other species studied in this manuscript (Fig. 1a).…”

Section: Tensile Testsupporting

confidence: 77%

“…During the extraction process, two types of fibres (thin and thick) were obtained. Thick fibres contained the main lumens of each fibre while the thin fibres seemed detached from the thick ones [13]. Three-sigma method was used to set the upper and lower control limits of the TS results in order to ensure results reliability and eliminate outliers (excessively high or low values outside the two horizontal lines ± 3SD) that would significantly affect the average.…”

Section: Extraction Reconditioning and Tensile Testmentioning

confidence: 99%

“…Three-sigma method was used to set the upper and lower control limits of the TS results in order to ensure results reliability and eliminate outliers (excessively high or low values outside the two horizontal lines ± 3SD) that would significantly affect the average. The section measurement was performed according to the method used by Rafidison et al [13], which consisted of measuring six marks print of the fibre cross section area made on plasticine at room temperature. The images were captured using a DigiMicro 5 MPix Microscope (Dnt-Germany) digital magnification 300 × equipped with image acquisition software.…”

Section: Extraction Reconditioning and Tensile Testmentioning

confidence: 99%

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Using infrared spectrum analyses to predict tensile strength of fibres in a group of closely related plant species: case of Mascarenes Pandanus spp.

et al. 2020

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Replacing synthetic fibres with natural ones is key for clean and sustainable manufacturing. Natural fibres require characterization to investigate their usefulness. However, current testing methodologies require a large sample size due to the strong variation of tensile strength (TS) among the fibre of the same plant species. The development of a simpler test method to predict fibre TS would help in the selection of the most appropriate plant species with desirable TS values while performing fewer tests; thus saving on time and cost. FT-IR results that determine fibre crystallinity through specific IR absorbance peak ratios may serve to predict the fibre TS. In this study, we tested the relationship between fibre TS and cellulose crystallinity for seven different species of Pandanus spp. Thus, empirical mathematical relationships between the fibre TS value and indices obtained by three specific IR absorbance peaks ratios, namely the total crystallinity index, lateral order index, and hydrogen bond index have been established with a good correlation coefficient (96, 98, and 95%, respectively).

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Hydroxyethylcellulose use simplifies mat manufacture and improves interfacial cohesion of alkaline-treated Pandanus utilis fibres in polyester composite

Rafidison

Ramasawmy

Chummun

et al. 2020

Composite Interfaces

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Tree Age, Leaf Maturity and Exposure to Sunlight Influence Tensile Strength of Fibres in Pandanus Utilis

Cited by 5 publications

References 12 publications

Better Wettability of Pandanus Utilis Alkaline Treated Fibres Tead to Higher Tensile Strengths of Composites.

Better Wettability of Pandanus Utilis Alkaline Treated Fibres Tead to Higher Tensile Strengths of Composites.

Using infrared spectrum analyses to predict tensile strength of fibres in a group of closely related plant species: case of Mascarenes Pandanus spp.

Hydroxyethylcellulose use simplifies mat manufacture and improves interfacial cohesion of alkaline-treated Pandanus utilis fibres in polyester composite

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