Highly stretchable, stability, flexible yarn-fabric-based multi-scale negative Poisson’s ratio composites

Chen, Junli; Wen, Xin; Shao, Yawen; Li, Tianyuan; Du, Zhaoqun

doi:10.1016/j.compstruct.2020.112579

Cited by 17 publications

(11 citation statements)

References 32 publications

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“…In our previous work, a multi-scale auxetic fabric (REH-HAY) was designed by utilizing HAY as weft yarn and the REH geometry structure as the macroscale to achieve the auxetic behavior both on the scale of yarn and fabric. 22 As shown in Figure 1(a), the REH geometric structure was realized by the combination of the twill weave (1/3, Part A), plain weave (Part B) and high float weave (Part C), whose weave structure is shown in Figure 1(a).…”

Section: Auxetic Fabric Manufacturingmentioning

confidence: 99%

“…Up to now, a number of NPR materials have been found in nature or synthetic materials, which range from single metal crystals 2,3 to foam 4,5 and from nanomaterials [6][7][8][9] to models and macrostructures. [10][11][12][13][14] Apart from these auxetic materials, other auxetic textiles have also attracted a tremendous amount of attention considering the rising requirements of flexibility and comfort; these mainly include helical auxetic yarn (HAY), [15][16][17][18] auxetic fabric [19][20][21][22][23][24] and auxetic composites. [25][26][27][28][29] Meanwhile, with the advancement of textile manufacturing technology and the deepening of research, a variety of geometric structures 30,31 have been utilized to realize auxeticity.…”

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confidence: 99%

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Influence of re-entrant hexagonal structure and helical auxetic yarn on the tensile and auxetic behavior of parametric fabrics

Chen

Yan

et al. 2021

Textile Research Journal

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This paper focuses on systematically analyzing the influence of macro fabric structure and yarn architecture on the mechanical and auxetic performance of parametric auxetic fabrics. Re-entrant hexagonal (REH) and helical auxetic yarn (HAY) were adopted as a macro fabric structure and weft yarn to produce three kinds of auxetic fabrics: REH fabric with HAY as weft yarn (REH-HAY); REH fabric with elastic yarn as weft yarn (REH-1, REH-2, REH-3); and plain fabric with HAY as weft yarn (NREH-HAY). By controlling the existence of the HAY and REH structure, the influence of the REH structure and HAY on the mechanical and auxetic properties was thoroughly analyzed. It is demonstrated that both the REH macrostructure and HAY micro configuration can contribute to the performance of the auxetic fabric. Specifically, in the presence of the REH structure and HAY, the auxeticity was found to a 77% increase compared with NREH-HAY and the breaking strain and load rises by about 37.50% and 90.42%, respectively. Notably, the variation of the polyurethane (PU) weft yarn per unit length influenced the tensile and auxetic performance to a lesser extent, while by changing PU to HAY, a significant increase of negative Poisson’s ratio value from –1.155 to –1.492 was noticed without greatly jeopardizing the stretchability. Furthermore, the cyclic tensile results demonstrate the stability and elasticity of the fabric. The comparative analysis can give guidance to optimize fabric design and inspire the innovative design of the auxetic textiles, all of which will pave the way for a quantitative and optimizing design for auxetic textiles.

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Section: Auxetic Fabric Manufacturingmentioning

confidence: 99%

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confidence: 99%

Influence of re-entrant hexagonal structure and helical auxetic yarn on the tensile and auxetic behavior of parametric fabrics

Chen

Yan

et al. 2021

Textile Research Journal

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“…Functional textiles including elastic fabrics have been used extensively in many applications including but not limited to leisure wear, flexible composites, tissue engineering, protective devices, and smart textiles. [1][2][3][4] Maintaining and improving the comfort of stretch fabrics remains a goal for fabric manufacturers, given the close skin contact of these materials in their various applications, and the hydrophobic nature of the elastane filaments that provide their stretching. Comfort afforded by these types of fabrics can be improved by understanding the physical liquid transport mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Quantifying the effects of external factors on the behavior of vertical wicking in a warp stretch woven fabric

Yong

Qiao

Gordon

et al. 2022

Journal of Engineered Fibers and Fabrics

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Wicking ability of textiles is a key indicator in determining the physiological comfort provided by a fabric. The property is shaped by various factors internal and external to the fabric. Herein, the effects of some external factors such as the degree of (fabric) extension, the wetting liquid’s temperature and relative humidity on the vertical wicking behavior of a previously prepared warp stretch woven fabric were investigated. The fabric, which could be reversibly extended up to 60%, was prepared using a nylon/spandex air-covered yarn in the warp and cotton yarn in the weft. The results indicated that these external factors had a great influence on the vertical wicking equilibrium height with the degree of fabric extension having a more pronounced effect compared with the other two factors. Furthermore, extension and relative humidity were negatively related to the height of the vertical wicking, whilst an increase in liquid temperature resulted in an increase in vertical wicking height. The underlying mechanisms associated with these effects were examined using a specially constructed test chamber and tensioning device. The experimental data were also verified using the classical Laughlin-Davies model, and the results demonstrated the proposed wicking model could be used to predict the changes in fabric wicking height. These findings provide a more in-depth understanding of the wicking behavior of stretchable textiles in a comprehensive and objective manner.

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“…9 There also had many textile scholars to study auxetic materials from HAYs to double HAYs to triple HAYs to braided auxetic yarns (BAYs), from 2D auxetic fabric to 3D auxetic fabric, and then to the auxetic composite material. 10,11 Up to now, NPR materials had been gradually applied in many high-tech materials and our daily life, such as shoes, insoles, and some anti-impact protection materials. 12 However, many directions can be investigated for auxetic materials, such as how to keep the NPR effect last for a longer time, and how to make the NPR effect more obvious for the auxetic fabric.…”

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confidence: 99%

Study on a theoretical model of braided auxetic yarns made from a high-speed braiding machine

Liu

Xiong

et al. 2023

Textile Research Journal

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The main content of this article theoretically analyzes the yarn diameter and Poisson's ratio variation of braided auxetic yarns under axial strain. Braided auxetic yarns are composed of three components: wrap yarns, the core yarn, and the stiff yarn. The core yarn has a larger diameter and smaller elastic modulus than the other two kinds of yarns, but its rigidity is lower. There is a lack of theoretical basis for predicting the Poisson's ratio of braided auxetic yarn. Based on the geometric model, the curve of the Poisson's ratio has been determined and the Poisson's ratio trend of braided auxetic yarns is deduced, aiming to predict the Poisson's ratio of braided auxetic yarns under axial strain with accurate yarn parameters. The experimental results show that the minimum Poisson's ratio of theoretical value and actual value appears under the same axial strain, and the variation trend of Poisson's ratio of both values is consistent. The Poisson's ratio curve of braided auxetic yarns is predicted, which lays a theoretical foundation for the development of auxetic materials and also provides more possibilities for subsequent research.

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Highly stretchable, stability, flexible yarn-fabric-based multi-scale negative Poisson’s ratio composites

Cited by 17 publications

References 32 publications

Influence of re-entrant hexagonal structure and helical auxetic yarn on the tensile and auxetic behavior of parametric fabrics

Influence of re-entrant hexagonal structure and helical auxetic yarn on the tensile and auxetic behavior of parametric fabrics

Quantifying the effects of external factors on the behavior of vertical wicking in a warp stretch woven fabric

Study on a theoretical model of braided auxetic yarns made from a high-speed braiding machine

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