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Physical Characterization of Electrospun Fibers
With emerging technologies and recent fabrication methods, researchers have concentrated their studies on nanoscale materials and more precisely on nanofibers. The unique properties possessed by these nanofibers have gained interest in wide range of applications in the fields of nanotechnology, biology, chemistry, and material sciences. Electrospinning is one of the most versatile processes used for the fabrication of nanofibers utilized in pronounced applications including biosensing, wound‐dressing, drug‐delivery, and tissue engineering. Now‐woven nanofibrous mats are delivered onto a grounded‐metal coated collector when a strong electric field is applied across the polymer solution. The size of electrospun fibers ranges in few microns to sub‐microns whereas the structural morphology is studied using physical characterization techniques such as SEM, TEM, AFM, and XRD. Moreover, the physical properties exhibited by these as‐spun nanofibers can be evaluated by using thermal and mechanical characterization techniques (DSC, TGA, nanoindentation, etc.). This chapter provides a brief information about certain physical characterization techniques that are relevant with respect to electrospinning and the changes observed in the physical properties of the material. For instance, there was 20%, 18%, and 60% increase in tensile strength, elastic modulus and hardness, respectively, when 0.1 wt% of ZnO was doped with pure PVDF polymer.
Physical Characterization of Electrospun Fibers
With emerging technologies and recent fabrication methods, researchers have concentrated their studies on nanoscale materials and more precisely on nanofibers. The unique properties possessed by these nanofibers have gained interest in wide range of applications in the fields of nanotechnology, biology, chemistry, and material sciences. Electrospinning is one of the most versatile processes used for the fabrication of nanofibers utilized in pronounced applications including biosensing, wound‐dressing, drug‐delivery, and tissue engineering. Now‐woven nanofibrous mats are delivered onto a grounded‐metal coated collector when a strong electric field is applied across the polymer solution. The size of electrospun fibers ranges in few microns to sub‐microns whereas the structural morphology is studied using physical characterization techniques such as SEM, TEM, AFM, and XRD. Moreover, the physical properties exhibited by these as‐spun nanofibers can be evaluated by using thermal and mechanical characterization techniques (DSC, TGA, nanoindentation, etc.). This chapter provides a brief information about certain physical characterization techniques that are relevant with respect to electrospinning and the changes observed in the physical properties of the material. For instance, there was 20%, 18%, and 60% increase in tensile strength, elastic modulus and hardness, respectively, when 0.1 wt% of ZnO was doped with pure PVDF polymer.
Physical Characterization of Electrospun Fibers
Inamuddin (Herausgeber:in) / Boddula, Rajender (Herausgeber:in) / Ahamed, Mohd Imran (Herausgeber:in) / Asiri, Abdullah M. (Herausgeber:in) / Purabgola, Anushka (Autor:in) / Kandasubramanian, Balasubramanian (Autor:in)
14.04.2020
42 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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