Thin and surface adhesive ferroelectric poly(vinylidene fluoride) films with β phase-inducing amino modified porous silica nanofillers

Vimal K. Tiwari, Ravindra V. Ghorpade, Kang Lib Kim, Giyoung Song, Taehee Kim, Haksoo Han, Cheolmin Park

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We report an efficient route for ferroelectric polar β phase generation in poly(vinylidene fluoride) (PVDF) through incorporation of amine functionalized, porous silica (MCM-41 and fumed silica) based nanofillers. These porous highly functionalized surfaces exhibit the efficient secondary interaction with polymer chain via hydrogen bonding. Structural analysis through FTIR, XRD, and TEM confirm high degree of ferroelectric polar β phase generation of PVDF through incorporation of amino modified porous silica nanofillers. Optimized loading (5 wt %) of amine functionalized, porous silica in PVDF matrix enhances relative intensity of β phase up to 75%. Disappearance of spherulite structure of PVDF with amino modified porous silica nanofillers, as confirmed through POM, TEM, SEM and AFM studies also supports the above conclusion. The P-E hysteresis loop at sweep voltage of ±50 V of a thin PVDF-amino modified porous nanofiller film shows excellent ferroelectric property with nearly saturated high remnant polarization 2.8 µC.cm−2 owing to its large proportion of β PVDF, whereas, a nonpolar pure PVDF thin film shows unsaturated hysteresis loop with 0.6 µC.cm−2 remnant polarization. PVDF films with the nanofillers exhibit strong adhesive strength over different metallic substrates making them have edge over PVDF in various thin film applications.

Original languageEnglish
Pages (from-to)2401-2411
Number of pages11
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume54
Issue number23
DOIs
Publication statusPublished - 2016 Dec 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Thin and surface adhesive ferroelectric poly(vinylidene fluoride) films with β phase-inducing amino modified porous silica nanofillers'. Together they form a unique fingerprint.

  • Cite this