Dielectric, Hydrophobic Investigation of ABS/NiFe2O4 Nanocomposites Fabricated by Atomized Spray Assisted and Solution Casted Techniques for Miniaturized Electronic Applications

摘要

Engineered nanocomposites with tailored dielectric and hydrophobic characteristics are highly desirable for miniaturized electronics. In this context, we have fabricated acrylonitrile butadiene styrene (ABS)/NiFe2O4 nanocomposites by facile solvent casted and low-volume high-pressure air-atomized (LVHPAA) techniques. The developed nanocomposites consisted of phases such as amorphous ABS, and crystalline nickel-ferrite phases were examined via x-ray diffraction technique. Fourier transform infrared spectroscopic measuration was used to describe ABS polymers, nickel-ferrite oxide constituents, and their interactions. The effect of the space-charge polarization mechanism between particulates and the polymer (10(1)-10(2) Hz and 10-40 wt.%) was analyzed via impedance spectroscopy, which is further augmented by the Maxwell-Wagner Sillars polarization hypothesis. Also, the subsequent oriental relaxation phenomenon (10(3)-10(7) Hz) was analyzed. Moreover, at similar to 10(7) Hz for all wt.% (10-40 wt.%), the incremental permittivity attributed oriental resonance phenomena was examined. In addition, the developed nanocomposites DC-conductivity attributed micro/nano-capacitors mechanism, and the AC-conductivity realized reorientational hoping mechanisms were scrutinized. The cole-cole representation of a nanocomposite that explained relaxation oriented insulating characteristics was also elucidated. The hydrophobicity of developed composites was characterized via atomic force microscopy (AFM) and contact angle goniometry. The AFM analysis showed a uniform textured surface morphology with the LVHPAA technique, which renders superior hydrophobic characteristics due to the process induced nano-needle generated roughness factor. The investigation results explain the improvement in the dielectric and hydrophobic characteristics of nanocomposites obtained by the LVHPAA technique. Therefore, these ABS/NiFe2O4 nanocomposites could be a possible functional material for miniaturized electronic applications.