Tensile strength of windmill palm (Trachycarpus fortunei) fiber bundles and its structural implications

Zhai, Shengcheng; Li, Dagang; Biao, Pan; Sugiyama, Junji; Itoh, Takaò

doi:10.1007/s10853-011-5874-0

Cited by 44 publications

(34 citation statements)

References 35 publications

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“…2b, c). This specific organization of fibers in different layers is likely related to their different functions, as the small fibers in the inner layer, which closely clasps the palm trunk, mainly play a structural [12] previously. There was similar surface morphology of palm fibers in different layers.…”

Section: Fiber Morphologymentioning

confidence: 99%

“…Nevertheless, none of these studies examined the potential variation in the physical and mechanical properties of palm fiber from different layers of the leaf sheath. Since there are three layers in each sheet of palm leaf sheath with some differences in terms of fiber morphology and tensile properties [12], it is important to assess the properties of these individual layers for a more comprehensive evaluation of the use of palm fiber as composite reinforcement material.…”

Section: Introductionmentioning

confidence: 99%

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Structural, chemical, and multi-scale mechanical characterization of waste windmill palm fiber (Trachycarpus fortunei)

Zhang

Zhu

et al. 2020

J Wood Sci

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This study investigated the structural, chemical, and multi-scale mechanical properties of windmill palm (Trachycarpus fortunei) leaf sheath fiber, which were frequently wasted. Significant variation was observed in fiber diameter and cross-sectional morphology among different layers in a single leaf sheath, whereas the chemical composition, relative crystallinity index, and the microfibrillar angle (MFA) of palm fibers were almost the same among different layers. Windmill palm fibers had low cellulose contents (34.70-35.5%), low relative crystallinity index (45.7-49.2%), and high MFA (38.8°-29.4°), resulting in low strength and modulus, but high failure strain under tensile load. The tensile fracture surface of windmill palm fibers was assessed through SEM studies and its ductile fracture was confirmed, which can potentially enhance the toughness of composites when used as reinforcement material. Nanoindentation was carried out among different leaf sheath layers, and the results showed the modulus and hardness values of windmill palm fibers are in the same range as other plant fibers. The experimental results may help guide selection of suitable reinforcing fibers for use in composites in different applications.

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Section: Fiber Morphologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structural, chemical, and multi-scale mechanical characterization of waste windmill palm fiber (Trachycarpus fortunei)

Zhang

Zhu

et al. 2020

J Wood Sci

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“…1 Windmill palm is one of the most widely distributed trees in East Asia. 2 Owing to the advantages of windmill palm fibre, such as its low density, high strength, high biodegradability and high abundance, this fibre material has received much attention as an exceptional environmentally compatible resource. [3][4][5] The main components of windmill palm fibre include hemicellulose, cellulose and lignin.…”

Section: Introductionmentioning

confidence: 99%

Influence of chemical composition of windmill palm fibre on crystallinity after alkali peroxide bleaching by grey model

Chen

Wang

Zhang

et al. 2019

Journal of Engineered Fibers and Fabrics

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To study the relationship between the chemical composition and aggregation structure of windmill palm fibres, the Grey System theory, least-squares method and MATLAB® software were used to develop a grey model that relates the crystallinity index to the cellulose, hemicellulose and lignin content of the fibres after alkaline peroxide bleaching. The mean arithmetic error (=0.109) of the grey model (GM (1,4)) indicated that the model could predict the crystallinity of windmill palm fibre based on its chemical composition. Scanning electron microscopy, Fourier transform infrared spectroscopy and Raman microscopy were used to characterize the morphology and chemical composition of the windmill palm fibres before and after alkaline peroxide bleaching. The results indicated that silica, as well as most of the pectin, hemicellulose and lignin, were removed after peroxide bleaching, and thus, the crystallinity index of the peroxide-bleached samples increased. The GM (1,4) provided a reference for studying the influence of the chemical composition of windmill palm fibre on its aggregate structure.

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“…Although several studies have been performed on the structure and mechanical properties of windmill palm fiber from leaf sheaths (Zhai et al 2012;Zhang et al 2015), the general chemical composition, structure, and properties of all morphological parts of the windmill palm have not yet been assessed. However, this knowledge is crucial for exploring the potential additional applications for the processing of windmill palm material (Oliveira et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Microscopic Structural Features and Properties of Single Fibers from Different Morphological Parts of the Windmill Palm

Chen¹,

Sun²,

Chen³

et al. 2017

BioResources

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The chemical, morphological, physical, and thermal properties of raw materials and single fibers extracted from different morphological parts of windmill palm were examined and comprehensively characterized after an alkali treatment. Leaf sheathes (LS) with the highest cellulose content (52.26%) achieved the most efficient extraction of fibers. Single fibers extracted from the vascular bundles of the windmill palm raw material had a slender shape with a tapering and sealing terminus, with each single fiber possessing a lumen in its cross-section. These windmill palm fibers displayed similar chemical compositions, but they exhibited significant differences in morphological parameters. Leaf blade fibers (LBFs) had the longest length (1240 μm ± 470 μm) and highest aspect ratio (121.39), which presented excellent potential as a reinforced fiber. After the alkali treatment, almost all of the hemicelluloses and lignin were removed, which resulted in increased crystallinity of extracted fibers. Thermogravimetric analysis confirmed LS stability up to 319 °C, which was higher than that of other materials from windmill palm.

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Tensile strength of windmill palm (Trachycarpus fortunei) fiber bundles and its structural implications

Cited by 44 publications

References 35 publications

Structural, chemical, and multi-scale mechanical characterization of waste windmill palm fiber (Trachycarpus fortunei)

Structural, chemical, and multi-scale mechanical characterization of waste windmill palm fiber (Trachycarpus fortunei)

Influence of chemical composition of windmill palm fibre on crystallinity after alkali peroxide bleaching by grey model

Microscopic Structural Features and Properties of Single Fibers from Different Morphological Parts of the Windmill Palm

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