Interferometric investigation of the opto-mechanical and structural properties of iPP/TiO 2 nanocomposite fibers

Fibers that missing specific features and functionalities could be innovated and functionalised via nano additives, in particular metal oxides. Titanium oxide (TiO ) nanoparticles have been added to isotactic polypropylene (iPP) to form iPP/TiO nanocomposite fibers. Three samples of iPP/TiO fibers w...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Microscopy research and technique 2019-06, Vol.82 (6), p.658-669
Hauptverfasser: Sokkar, T Z N, El-Bakary, M A, Raslan, M I, Al-Kalali, N A, El-Dessouky, H M
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Fibers that missing specific features and functionalities could be innovated and functionalised via nano additives, in particular metal oxides. Titanium oxide (TiO ) nanoparticles have been added to isotactic polypropylene (iPP) to form iPP/TiO nanocomposite fibers. Three samples of iPP/TiO fibers were extruded at three extrusion speeds 25, 50, and 78 m/min were considered in this study. Mach-Zehnder interferometer was used to assess the changes in the opto-mechanical and geometrical parameters of iPP/TiO nanocomposite fibers along the fiber axis. The mechanical drawing device along with Mach-Zehnder interferometer was utilized to stretch the filaments to different draw ratios. The effect of mechanical cold drawing and extrusion speed on the optical and physical characteristics of iPP/TiO nanocomposite fibers were determined along the fiber axis. The optical and physical variation along the nanocomposite samples were characterized by measuring their refractive indices, birefringence, refractive index profile along the fiber axis. The diffraction of He-Ne laser beam was used to define the variation of the fiber diameter along the fiber axis through their cross-sectional area and shape. A sample of uniform diameter from neat iPP fibers was used as reference material for studying the variation of the iPP/TiO fiber diameter along the fiber axis. As result, the iPP/TiO nanocomposite fibers exhibited nonuniform diameters. The dispersion of TiO particles in nanocomposite fibers influences the properties' consistency along and across the fiber.
ISSN:1059-910X
1097-0029
DOI:10.1002/jemt.23212