Preparation and Characterization of Polyester Staple Yarns Nanowrapped with Polysulfone Amide Fibers

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• 作者：Xi Tong ; Xin Bin-Jie
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2015
• 出版时间：December 16, 2015
• 年：2015
• 卷：54
• 期：49
• 页码：12303-12312
• 全文大小：724K
• ISSN：1520-5045

文摘

In this study, a novel approach and the related electrospinning equipment were developed to fabricate a new type of polyester staple yarn wrapped with poly(sulfone amide) (PSA) fibers at the nanoscale. As the number of tubes of spinnerets, electrospinning voltage, and rotation speed of the funnel collector have effects on the structure and properties of the nanowrapped yarns, three series of wrapped yarns were prepared using the self-developed electrospinning and wrapping equipment; these wrapped yarns at the nanoscale were characterized systematically by scanning electron microscopy (SEM), thermogravimetry (TG), and infiltration evaluation. The three-dimensional electric field of the electrospinning system used for the nanowrapped yarn was simulated to model the electric fields of different electrospinning spinnerets. Our experimental results showed that the mechanical, thermal, and hygroscopicity properties of the nanowrapped yarns fabricated in this work were clearly improved obviously in comparison with those of single polyester yarns. The nanowrapped yarn has a core鈥搒hell structure composed of both nanoscale PSA fibers and micron-scale poly(ethylene terephthalate) (PET) fibers, so that it can unite and inherit the excellent thermal properties of the PSA and the excellent mechanical properties of polyester yarns. The newly developed nanowrapped yarns have potential applications in the development of high-performance industrial textiles and apparel in the future.