Green synthetic route of carbon quantum dot‐reinforced graphene oxide‐poly(vinylidene fluoride‐co‐hexa fluoropropylene) nanocomposites: Toward high dielectric constant and suppressed loss. Issue 32 (26th April 2019)

• Record Type: Journal Article
• Authors: Moharana, Srikanta; Mahaling, Ram Naresh
• Is Part Of: Journal of applied polymer science. Volume 136:Issue 32(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-04-26
• Subjects: dielectric properties -- graphene oxide -- poly (vinylidene fluoride‐co‐hexa‐fluoropropylene); Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.47850
• Languages: English
• ISSNs: 0021-8995

Abstract

ABSTRACT: A simple and green method was developed to fabricate carbon quantum dot@ graphene oxide filled poly (vinylidene fluoride‐co‐hexa‐fluoropropylene) [CQD@GO‐P(VDF‐HFP)] nanocomposite films via solution casting technique. The synthetic approach was to bring CQD from bilva leafs, a renewable and sustainable resource. The effect of CQD on dielectric properties, dielectric constant, and dielectric loss in the presence of GO along with P (VDF‐HFP) matrix were investigated. The result showed that the nanocomposites having 1.5 wt % of CQD@GO‐P(VDF‐HFP) with higher dielectric constant (≈144) at 100 Hz and suppressed loss (<1) at 1000 Hz, which is well supported by field emission scanning electron microscopy (FESEM) study. The FESEM study shows a river iceland morphology with a channel‐like structure along with voids and pores that may provide a conducting network, which tends to have Maxwell Wagner‐Sillars or interfacial polarization results in a high‐end properties outcome. Furthermore, the suppressed loss enhanced the possibility of end use performance of CQD@GO‐P(VDF‐HFP) matrix with a referral memorandum of percolation theory. Thus, the present work demonstrated a new approach to develop high dielectric constant and negligible loss materials in the field of embedded devices for electronic industries through green synthetic approach. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2019, 136, 47850. Abstract : Schematic illustration for the preparation of CQD reinforced GO‐P(VDF‐HFP) nanocomposites.