Abstract
To analyze the feasibility of electrospinning nanofiber yarn using a wrapping yarn forming device, electrospun nanofiber-wrapped yarns and multiscale yarns were prepared by self-made equipment. The relationship between the surface morphology and properties of yarn and its preparation process was studied. The process parameters were adjusted, and it was found that some nanofibers formed Z-twisted yarns, while others showed exposed cores. To analyze the forming mechanism of electrospun nanofiber-wrapped yarn, the concept of winding displacement difference in the twisted yarn core A was introduced. The formation of nanofiber-wrapped structural yarns was discussed using three values of A. The starting point of each twist was the same position when A = 0 with a constant corner angle β. However, the oriented nanofiber broke or was pulled out from the gripping point when it was twisted, and it appeared disordered. The forming process of electrospun nanofiber-wrapped yarn displayed some unique phenomena, including the emission of directional nanofibers during collection, fiber non-continuity, and twist angle non-uniformity. The conclusions of this research have theoretical and practical value to guide the industrial preparation of nanofiber yarns and their wrapped yarns.
Highlights
Fiber and yarn are the main materials used in the traditional textile industry, but only fibers with a diameter larger than several microns can be processed using existing textile processing techniques [20]
Electrospun nanofiber materials have shown great application prospects in the field of functional textiles due to their ultra-fine fiber size, flexible material selectivity, structural controllability, and easy surface functionalization [1]; they generally have weak mechanical properties, and their nanofiber aggregates have poor structural stability, which severely restricts their practical applications as functional textiles [2,3]
The fibers are aligned and closely contacted to form ultrafine capillary cavities and continuous channels [7]. This can overcome the inherent defects of the membrane structure nanofiber aggregates and has broad application prospects in biomedicine [8,9,10], smart wearables [11,12], sensing [13,14], functional textiles [15,16], and other fields, promoting the industrial applications of electrospinning technology [17,18,19]
Summary
Electrospun nanofiber materials have shown great application prospects in the field of functional textiles due to their ultra-fine fiber size, flexible material selectivity, structural controllability, and easy surface functionalization [1]; they generally have weak mechanical properties, and their nanofiber aggregates have poor structural stability, which severely restricts their practical applications as functional textiles [2,3]. The fibers are aligned and closely contacted to form ultrafine capillary cavities and continuous channels [7]. This can overcome the inherent defects of the membrane structure nanofiber aggregates and has broad application prospects in biomedicine [8,9,10], smart wearables [11,12], sensing [13,14], functional textiles [15,16], and other fields, promoting the industrial applications of electrospinning technology [17,18,19]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
