Chapter 3c

Poly(vinylidene fluoride)-Based Magnetoelectric Polymer Nanocomposite Films

Poly(vinylidene fluoride)-Based Magnetoelectric Polymer Nanocomposite Films

Thandapani Prabhakaran

Thandapani Prabhakaran

National Institute of Technology, Advanced Materials Lab, Department of Physics, Tiruchirappalli, Tamilnadu, 620015 India

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Jawaharlal Hemalatha

Jawaharlal Hemalatha

National Institute of Technology, Advanced Materials Lab, Department of Physics, Tiruchirappalli, Tamilnadu, 620015 India

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First published: 07 July 2017
Citations: 7

Summary

This chapter discusses the main findings on the properties of poly(vinylidene fluoride) (PVDF)-based magnetoelectric polymer nanocomposite (MPNC) films fabricated through a solution casting method. It then elaborates the effect of CoFe2O4 (CFO), NiFe2O4 (NFO), and ZnFe2O4 (ZFO) nanofillers on the crystallization of PVDF matrix. It is noteworthy to mention that special efforts such as polar dimethyl formamide (DMF) solvent, evaporation temperature, electrical poling, and nanoferrite loading have been made to enhance the ferroelectric β phase of PVDF matrix and to produce good quality, flexible magnetoelectric films. Pure and single-phase magnetic nanofillers are synthesized through sol-gel combustion method. Electroactive polymers can be used as a ferroelectric matrix. However, for magnetic ordering, it is essential to select the fillers that show appreciable magnetic ordering near room temperature. Infrared (IR) vibrational spectrum is an excellent tool to identify the possible functional group vibrations in PVDF film.

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