Continuous nanofiber coated hybrid yarn produced by multi-nozzle air jet electrospinning

Abstract

Multi-nozzle air jet electrospinning was used to produce continuous viscose filament/polyvinylidenefluoride (PVDF) nanofiber hybrid yarns. The production of PVDF nanofibers using this method was based on the principle that the rupture of bubbles results in multiple jet flows. Nanofibers ejected from multiple nozzles were gathered and bundled by conjugate electrospinning and were then twisted on the surface of a filament yarn through the rotation of a metal funnel. The structures and properties of the hybrid yarn were characterized, and spinning mechanism of this novel method was analyzed. The experimental results obtained in this study showed that PVDF nanofibers were perfectly coated on the filament yarn surface with a good orientation and displayed uniform twist distribution with a twist angle of 24.3°, as well as PVDF nanofibers integrated with the core yarn well. After coating with twisted PVDF nanofibers, the mechanical properties of the yarn improved significantly. The stress and strain of the yarn at break increased from 19.39 MPa and 15.83% to 30.82 MPa and 19.81%, respectively. In addition, the hybrid yarn contact angle reached 150° after coating with the twisted PVDF nanofibers, indicating a transformation of the yarn from hydrophilic to hydrophobic. The nanofiber-coated hybrid yarn produced herein can possibly be used as a self-cleaning fabric.

Superhydrophilic Polyurethane/Polydopamine Nanofibrous Materials Enhancing Cell Adhesion for Application in Tissue Engineering

“…Unique properties of materials composed from submicron fibers, or so-called nanofibers, increased the scientific output in the subject, but we still struggle to transfer such materials into practical applications [ 1 ]. The properties of the nano- and submicron scale fibrous materials, like high specific surface area, high porosity, better mechanical properties compared to bulk materials, and overall structural characteristics are associated with their size, and they create an opportunity to improve already existing products, or introduce new products with superior properties [ 2 , 3 , 4 ], from smart materials (self-healing, self-cleaning materials), through materials for environmental protection (air purification, wastewater treatment), energy and catalysis applications to biomedical applications (wound dressing, tissue engineering) [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. The range of applications of submicron fibrous materials depends not only on their properties, but also on the efficient and reliable methods of production.…”

Development of a novel hybrid yarn production process for functional textile products

“…In literature, Zhou et al. [1] produced twisted continuous viscose filament/polyvinylidenefluoride nanofibre hybrid yarns by using air nozzle as a twister and compared the tensile properties of the viscose filament and hybrid yarn. Similar to our study, it was determined that the stress and strain at break was 19.39 MPa and 15.83% for viscose filament while the values were 30.82 MPa and 19.81% for hybrid yarn.…”

“…The produced yarns were called as hybrid yarn that has the characteristics of mechanical strength of the conventional spun yarns and desirable high surface area and functionality of nanofibres. In addition to these, this method would enable to convert the nanofibres to knitted or woven fabrics in terms of commercial manufacturing techniques, and hence, nanofibres could be used in the larger traditional textile market with high production and yield [1].…”

“…Functional textiles have attracted much attention in recent years due to their inherent features which could meet special needs of people [1]. In order to produce the functional textiles, several methods such as functional fibres and chemical finishing were commonly used [2,3].…”

Investigating the wicking behavior of micro/nanofibrous core‐sheath PET–PAN yarn modified by dimethyl 5‐sodium sulfoisophthalate

“…1,2 Limited application of electrospun nanofibers that result from low values of strength, has incentivized researchers to create hybrid structures with enhanced properties. 3 Therefore, one alternative approach is the combination of nanostructure and microstructure within a single structure that has been reported in many research studies. 4 Such structures have the benefits of both components and in some cases exhibit properties which are scarcely found in either component alone.…”