Investigation of structural, thermal and dielectric properties of PVC/modified magnetic nanoparticle composites

Abdulrahman Tukur; Mustafa Ersin Pekdemir; Mehmet Coşkun

doi:10.17776/csj.715714

EN

Investigation of structural, thermal and dielectric properties of PVC/modified magnetic nanoparticle composites

Abstract

Three different composites (5, 10, and 20 wt. %) were prepared using purified PVC and POH-g-N3PTMS-g-Fe3O4. Firstly, 3-azidopropyltrimethoxysilane was synthesized under reflux from 3-chlorotrimethoxysilane and sodium azide. Then, magnetic nanoparticle was bonded with the silane group of 3-azidopropyltrimethoxysilane. After that the 3-azidopropyltrimethoxysilane bearing magnetic nanoparticle undergo click reaction with propargyl alcohol, and then the composites were prepared. Some characterization, including FT-IR spectroscopy, SEM, Differential scanning calorimetry (DSC), vibrating sample magnetometer (VSM), and EDX images was performed to the composites. The DSC measurements showed that the click reaction of the 3-azidopropyltrimethoxysilane graft magnetic nanoparticles (N3PTMS-g-Fe3O4) reduced the glass transition temperature (Tg). Click reaction reduced the thermal stability of N3PTMS-g-Fe3O4. The thermal stabilities of the composites increased by increasing the compositional rate. It was found that the 10% PVC /POH-g-N3PTMS-g-Fe3O4 reached saturation magnetization (Ms) at 5.12 emu/g. The dielectric constant (ε´) and dielectric loss (″) of POH-g-N3PTMS-g-Fe3O4 rapidly decreased with increasing applied frequency and then remain more or less constant. Also, the AC conductivity (ac) increased sharply with increasing the applied frequency. While the ε´ decreased slightly for the composites by increasing the applied frequency and the ac increase dramatically with an increase in applied frequency at room temperature.

Keywords

PVC,Fe3O4 nanoparticles,click reaction,composite,dielectric

Supporting Institution

Fırat Üniversitesi

Project Number

FF.18.18

References

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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Authors

Abdulrahman Tukur
0000-0002-6910-8533
Türkiye

Mustafa Ersin Pekdemir ^*
0000-0002-4979-1777
Türkiye

Mehmet Coşkun
0000-0002-2379-1795
Türkiye

Publication Date

June 25, 2020

Submission Date

April 7, 2020

Acceptance Date

June 4, 2020

Published in Issue

Year 2020 Volume: 41 Number: 2

DOI

https://doi.org/10.17776/csj.715714

IZ

https://izlik.org/JA28TL49GS

Cite

RIS / Bibtex

APA

Tukur, A., Pekdemir, M. E., & Coşkun, M. (2020). Investigation of structural, thermal and dielectric properties of PVC/modified magnetic nanoparticle composites. Cumhuriyet Science Journal, 41(2), 377-385. https://doi.org/10.17776/csj.715714

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