Energy harvesting from a thin polymeric film based on PVDF-HFP and PMMA blend

Polat K.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol.126, no.7, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 126 Issue: 7
  • Publication Date: 2020
  • Doi Number: 10.1007/s00339-020-03698-w
  • Journal Name: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex
  • Keywords: Piezoelectricity, PVDF-HFP, PMMA, Isotactic, Syndiotactic, beta Phase, ELECTRICAL-PROPERTIES, COMPOSITE FILMS, ELECTROLYTE, MORPHOLOGY, MEMBRANES, FLUORIDE, SYSTEM
  • Dokuz Eylül University Affiliated: Yes

Abstract

Herein, a thin polymeric film prepared by spin coating technique using the blend of poly(vinylidene floride-co-hexafluoropropylene) (PVDF-HFP) and poly(methyl methactrylate) PMMA (1:1 mixing ratio) was introduced and compared with the pure PVDF-HFP. SEM, XRD, FTIR, TGA and DSC characterizations were conducted. Piezoelectric response was measured by hand made setup and the produced signal measured by a digital oscilloscope. Blending with PMMA increased the beta -phase content, improved the heat stability. Crystallization point decreased from 140 to 129 degrees C and glass transition temperature changed from 59 to 94 degrees C. A uniform porous film structure was obtained with a thickness value of 12 mu m. Piezoelectric potential obtained by applying mechanical force was found 4.385 V and 8.101 V for pure PVDF-HFP and the blend film, respectively. 84.7% increase found in the piezoelectric potential could be a promising result for energy harvesting and sensors applications.Graphic abstract