Centrifugal force spinning for producing polymer fibers and polymer yarns
摘要
Polymer fibers and yarns are widely used in applications such as textiles, tissue engineering, composites, air and water filtration. Conventional techniques used for fiber production, such as electrospinning, are limited by the requirement for a high-voltage source and low scalability. This study aimed to design a portable centrifugal force spinning device that can not only produce polymer fibers but also have the flexibility to produce polymer yarns. The device was first designed using computer-aided design (CAD) software and then fabricated using additive manufacturing techniques. Once assembled, the device was used to produce polymer fibers and yarns using poly(N-isopropylacrylamide) (PNIPAM) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) solutions. The study demonstrated that the size of the fibers can be controlled by varying the concentration of the polymer within the solution. The fibers obtained had smooth morphology and were found to have diameters ranging from 0.3 to 2.3 μm. Yarns were collected using a cone collector and a mechanical roller system. The mechanical properties of the collected yarns were also investigated. The results demonstrated that the yarns made from fibers with an average diameter of 0.3 μm exhibited 3 MPa as the modulus, while those produced from fibers with an average diameter of 1.7 μm displayed 1 MPa as the modulus.