An improved method for single fiber tensile test of natural fibers

Hu, Wei; Ton‐That, Minh‐Tan; Perrin‐Sarazin, Florence; Denault, J.

doi:10.1002/pen.21593

Cited by 61 publications

(39 citation statements)

References 20 publications

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“…Polarized optical microscope images showed the structure of hemp fibres to contain series of dislocations [25]. Sawpan et al [28] also observed the kinks in the structure Adhesive covering the fibre (the pulled-out region)…”

Section: Introductionmentioning

confidence: 99%

“…It is usually determined either through density measurement and backcalculation of the fibre fineness/diameter [25], or through direct measurement along the gauge length from microscope images, or measuring the diameter at the point of failure [25,26]. The problem with the first method is that it is not accurate as it depends on the apparent density and that with the latter is that it assumes the fibre to be of circular cross-section, which is rarely the case.…”

Section: Introductionmentioning

confidence: 99%

“…Nechwatal et al [24] reported that the correlation between using the two methods is significantly high. Hu et al [25] dedicated a full study to the different methodologies of diameter measurements. In agreement with lots of previous research, it was established that increasing the diameter of the fibres leads to a depression in the tensile properties.…”

Section: Introductionmentioning

confidence: 99%

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Looking for Links between Natural Fibres’ Structures and Their Physical Properties

Everitt

Aboulkhair

Clifford

2013

Conference Papers in Materials Science

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Natural fibres have excited growing attention in the last decade since they offer the potential to act as candidates substituting for man-made fibres as composite reinforcements. Their superiority over synthetic fibres is that they are environmentally friendly and biodegradable. Numerous industrial sectors are interested in such composites, including but to name a few the aeronautical and the automotive fields. However natural fibres tend to suffer from large variability in properties compared to the "traditional" man-made fibres, and the performance of their composites often does not conform to that theoretically predicted from single-fibre tests. This study investigates the properties of the single fibres. The mechanical properties of the fibres were correlated to their microstructure. There are factors that were found to contribute to the reported variability, some of which are inherent in the fibres and some are related to testing parameters.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Looking for Links between Natural Fibres’ Structures and Their Physical Properties

Everitt

Aboulkhair

Clifford

2013

Conference Papers in Materials Science

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“…Most researchers invariably use the longitudinal tensile modulus (which is always higher than the transverse modulus) of NFs to predict the mechanical behavior of NFRPCs. However, some researchers who considered this approach defective resorted to using the Young's modulus from a bundle of NFs for predicting the performance of NFRPCs [38] [39]. Both approaches still have their associated drawbacks owing to the anisotropic properties of NFs [40].…”

Section: Tensile Testmentioning

confidence: 99%

Re-Evaluation of Bovine Fiber Biomass as Exploitable Keratinous Bio-Resource for Biomedical and Industrial Applications

Oladele¹,

Olajide²,

Daramola³

et al. 2017

JMMCE

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In claim of developing ecologically-friendly and low cost polymeric materials, some polymer scientists and engineers have focused on improving the properties of polymer composites with natural fibers. One typical example of these natural fibers currently used as reinforcements in low load-bearing polymer composites is bovine fiber which is traditionally a waste from slaughterhouse. However, nature has designed natural fibers with anisotropic properties which may not augur well for the development of polymer composites with guaranteed field-proven reliability. Nonetheless, unlike vegetal fibers, most animal fibers can be alternatively exploited for keratinous applications. In the present study, the tensile properties, crude protein contents and variations in elemental distribution of hair fibers obtained from three breeds of bovine found in Nigeria were investigated. The hair fibers were characterized by ultimate testing machine, proximate analysis and scanning electron microscopy with energy dispersive X-ray spectroscopy. Superlative Young's modulus and tensile strength among the fibers were found to be 0.98989 GPa and 0.56158 MPa, respectively. The determined crude protein contents of the fibers ranged between 35% and 40%. Also, single hair fibers from each bovine breed showed significant variations in elemental distribution along their longitudinal sections which translates to anisotropic chemical and mechanical properties. However, the mean spectral values of the principal elements that constitute amino acids in the fibers are in the same range with that of human hair fibers with a successful record of keratinous applications.

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“…Before SEM observation, the samples were coated with Au/Pd to ensure good conductivity. For SFTT, the tensile properties of fl ax fi bers were evaluated according to the procedure described in [12] .…”

Section: Sem Observationmentioning

confidence: 99%

Characterization of polypropylene composites reinforced with flax fibers treated by mechanical and alkali methods

Ton‐That

Denault

et al. 2011

Science and Engineering of Composite Materials

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Flax is a type of natural fi ber widely used as reinforcing materials for polymer composites. The commercially available fl ax fi bers in Canada consist of a signifi cant amount of shive and other impurities, which could act as stress concentration regions to negatively affect the mechanical property of composites. In this study, the shive was manually removed from the commercial fl ax fi bers by screening and combing to obtain different shive contents from 0 to 30 wt % . By contrast, the obtained fl ax fi bers were further treated with alkaline solution. The fi bers obtained from mechanical and alkali treatment were compared on their thermal and mechanical properties. As expected, it was found that the thermal stability and mechanical properties of the fl ax reinforced polypropylene composites increased significantly with the removal of the shive content. However, the alkali treatment on fl ax fi ber did not further improve the composites properties. The possible reason was that the proper mechanical treatment (screening and combing) prior to alkaline treatment effectively loosened the fi ber bundles for better single fi ber separation in matrix and signifi cantly removed the impurities, thus the effect of alkaline treatment did not become obvious.

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An improved method for single fiber tensile test of natural fibers

Cited by 61 publications

References 20 publications

Looking for Links between Natural Fibres’ Structures and Their Physical Properties

Looking for Links between Natural Fibres’ Structures and Their Physical Properties

Re-Evaluation of Bovine Fiber Biomass as Exploitable Keratinous Bio-Resource for Biomedical and Industrial Applications

Characterization of polypropylene composites reinforced with flax fibers treated by mechanical and alkali methods

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