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Title: | Woven fabrics made of auxetic plied yarns | Authors: | Ng, WS Hu, H |
Issue Date: | 2018 | Source: | Polymers, Feb. 2018, v. 10, no. 2, 226, p. 1-19 | Abstract: | Auxetic plied yarns are specially constructed with two types of single yarns of different sizes and moduli. This paper investigates how to use these types of yarns to produce woven fabrics with auxetic effects. Four-ply auxetic yarns were first incorporated into a series of woven fabrics with different design parameters to study their auxetic behavior and percent open area during extension. Effects of auxetic plied yarn arrangement, single component yarn properties, weft yarn type, and weave structure were then evaluated. Additional double helical yarn (DHY) and 6-ply auxetic yarn woven fabrics were also made for comparison. The results show that the alternative arrangement of S- and Z-twisted 4-ply auxetic yarns in a woven fabric can generate a higher negative Poisson's ratio (NPR) of the fabric. While the higher single stiffyarn modulus of auxetic yarn can result in greater NPR behavior, finer soft auxetic yarn does not necessarily generate such an effect. Weft yarns with low modulus and short float over the 4-ply auxetic yarns in fabric structure are favorable for producing high NPR behavior. The weft cover factor greatly affects the variation of the percent open area of the 4-ply auxetic yarn fabrics during extension. When different kinds of helical auxetic yarns (HAYs) are made into fabrics, the fabric made of DHY does not have the highest NPR effect but it has the highest percent open area, which increases with increasing tensile strain. | Keywords: | Auxetic textiles Auxetic yarns Negative Poisson's ratio Woven fabric |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Polymers | ISSN: | 2073-4360 | DOI: | 10.3390/polym10020226 | Rights: | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). The following publication Ng, W. S., & Hu, H. (2018). Woven fabrics made of auxetic plied yarns. Polymers, 10(2), (Suppl. ), 226, - is available athttps://dx.doi.org/10.3390/polym10020226 |
Appears in Collections: | Journal/Magazine Article |
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Ng_Woven_Fabrics_Auxetic.pdf | 9.68 MB | Adobe PDF | View/Open |
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