Ibrahim Takai, Zakiyyu (2019) Synthesis and characterization of polyaniline/magnetite nanocomposites for fabrication of nanofiber textile. Doctoral thesis, Universiti Tun Hussein Onn Malaysia.
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Abstract
Polymers nanocomposites containing inorganic fillers like metal particles dispersed in the polymer matrix are of great interest for the optical and dielectric application. Polymer/inorganic composites such as polyaniline/magnetite nanocomposites (PAni/Fe3O4) can be manipulated through various treatments in fabricating desire material such as nanofibers textile for many applications. The modified magnetite (Fe3O4) nanoparticles were successfully synthesized and incorporated into polyaniline at different weight ratio and blended with polyvinyl alcohol (PVA) to achieve a spinning solution, further PAni/Fe3O4 nanofiber composites solution were used for fabrication of nanofiber textile by an electrospinning method, and the composites nanofiber textile materials were investigated. The crystalline phase structure of PAni/PVA and PAni/Fe3O4 composites nanofibers textile was determined by XRD, shows the existence of peaks at 2θ = 24.13o and 35.63o for PAni and Fe3O4 nanoparticles respectively. The FTIR analysis indicated a slight decrease in the intensity and broadening of the absorption bands at 3462 cm-1and 3431 cm-1, are due to vibration stretching –NH group. The disappearance of the peak for PAni/Fe3O4 composites nanofibers textile sample containing 25 wt% of Fe3O4 nanoparticles clearly indicated the interaction of nanoparticles with nitrogen, hydrogen, carbon, and oxygen atoms in the PAni and PVA chain. FESEM analysis of the composites nanofibers textile shows clearly no accumulation of nanoparticles on the surface of polymeric composites nanofibers. This implies that the growth of nanoparticles on the surface of polymeric composites has successfully been prevented. The decrease of electrical conductivity was observed due to insulating behaviour of Fe3O4 nanoparticles. The composites nanofiber textile exhibit hysteric loops under an applied magnetic field of -10000 HOe to 10000 Hoe, for PAni/Fe3O4 composites nanofibers textile. Finally, the nanofiber textile materials were successfully fabricated and found that electric and magnetic properties composite textile materials that could be used for many applications.
| Item Type: | Thesis (Doctoral) |
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials |
| Divisions: | Faculty of Applied Science and Technology > Department of Technology and Natural Resources |
| Depositing User: | Mrs. Sabarina Che Mat |
| Date Deposited: | 05 Jul 2021 03:02 |
| Last Modified: | 05 Jul 2021 03:02 |
| URI: | http://eprints.uthm.edu.my/id/eprint/138 |
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