The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix

This research focuses on the improvement of the dielectric and energy harvesting properties of piezoelectric P(VDF-TrFE) copolymer matrix by the alignment of conductive reduced graphene oxide nano fillers. The dispersion and the morphology of the conductive nano fillers on the co-polymer matrix were...

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Auteurs principaux:	Md Habibur Rahaman, Usman Yaqoob, Hyeon Cheol Kim
Format:	article
Langue:	EN
Publié:	Taylor & Francis Group 2019
Sujets:	rGO copolymer conductive filler fillers alignment crystallinity Polymers and polymer manufacture TP1080-1185 Automation T59.5
Accès en ligne:	https://doaj.org/article/97c5478e50d044a9abb5a0a08a67fa41
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spelling	oai:doaj.org-article:97c5478e50d044a9abb5a0a08a67fa412021-12-02T09:46:48ZThe effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix2055-03402055-035910.1080/20550340.2019.1567067https://doaj.org/article/97c5478e50d044a9abb5a0a08a67fa412019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/20550340.2019.1567067https://doaj.org/toc/2055-0340https://doaj.org/toc/2055-0359This research focuses on the improvement of the dielectric and energy harvesting properties of piezoelectric P(VDF-TrFE) copolymer matrix by the alignment of conductive reduced graphene oxide nano fillers. The dispersion and the morphology of the conductive nano fillers on the co-polymer matrix were characterized by scanning electron microscopy which showed a configurational phase transition due to highly conductive nano channel formation, steric hindrance, excluded volume interaction van-der-walls forces between adjacent reduced graphene oxide sheets. Five different piezoelectric nanocomposites were prepared by varying the reduced graphene oxide contents in P(VDF-TrFE) matrix to realize its optimum concentration in the matrix. From our analysis, we observed that, an optimized morphological structure plays a vital role in the formation of polar electroactive β phase on the co-polymer matrix through the good dispersion, filler alignment and interfacial interaction of reduced graphene oxide nano fillers. The as prepared nanocomposite film showed an enhanced crystallinity (50 ∼ 52%), dielectric constant (72 at 1 kHz), piezoelectric charge constant (−23 pC/N) with an output power of 3.2 µW at 1.8 MΩ load for 2 N mechanical force. All the outputs were observed without applying poling process. We expect that our synthesized self-poled nanocomposite can be a useful candidate for energy harvesting applications.Md Habibur RahamanUsman YaqoobHyeon Cheol KimTaylor & Francis GrouparticlerGOcopolymerconductive fillerfillers alignmentcrystallinityPolymers and polymer manufactureTP1080-1185AutomationT59.5ENAdvanced Manufacturing: Polymer & Composites Science, Vol 5, Iss 1, Pp 29-36 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	rGO copolymer conductive filler fillers alignment crystallinity Polymers and polymer manufacture TP1080-1185 Automation T59.5
spellingShingle	rGO copolymer conductive filler fillers alignment crystallinity Polymers and polymer manufacture TP1080-1185 Automation T59.5 Md Habibur Rahaman Usman Yaqoob Hyeon Cheol Kim The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix
description	This research focuses on the improvement of the dielectric and energy harvesting properties of piezoelectric P(VDF-TrFE) copolymer matrix by the alignment of conductive reduced graphene oxide nano fillers. The dispersion and the morphology of the conductive nano fillers on the co-polymer matrix were characterized by scanning electron microscopy which showed a configurational phase transition due to highly conductive nano channel formation, steric hindrance, excluded volume interaction van-der-walls forces between adjacent reduced graphene oxide sheets. Five different piezoelectric nanocomposites were prepared by varying the reduced graphene oxide contents in P(VDF-TrFE) matrix to realize its optimum concentration in the matrix. From our analysis, we observed that, an optimized morphological structure plays a vital role in the formation of polar electroactive β phase on the co-polymer matrix through the good dispersion, filler alignment and interfacial interaction of reduced graphene oxide nano fillers. The as prepared nanocomposite film showed an enhanced crystallinity (50 ∼ 52%), dielectric constant (72 at 1 kHz), piezoelectric charge constant (−23 pC/N) with an output power of 3.2 µW at 1.8 MΩ load for 2 N mechanical force. All the outputs were observed without applying poling process. We expect that our synthesized self-poled nanocomposite can be a useful candidate for energy harvesting applications.
format	article
author	Md Habibur Rahaman Usman Yaqoob Hyeon Cheol Kim
author_facet	Md Habibur Rahaman Usman Yaqoob Hyeon Cheol Kim
author_sort	Md Habibur Rahaman
title	The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix
title_short	The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix
title_full	The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix
title_fullStr	The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix
title_full_unstemmed	The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix
title_sort	effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/97c5478e50d044a9abb5a0a08a67fa41
work_keys_str_mv	AT mdhabiburrahaman theeffectsofconductivenanofillersalignmentonthedielectricpropertiesofcopolymermatrix AT usmanyaqoob theeffectsofconductivenanofillersalignmentonthedielectricpropertiesofcopolymermatrix AT hyeoncheolkim theeffectsofconductivenanofillersalignmentonthedielectricpropertiesofcopolymermatrix AT mdhabiburrahaman effectsofconductivenanofillersalignmentonthedielectricpropertiesofcopolymermatrix AT usmanyaqoob effectsofconductivenanofillersalignmentonthedielectricpropertiesofcopolymermatrix AT hyeoncheolkim effectsofconductivenanofillersalignmentonthedielectricpropertiesofcopolymermatrix
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The effects of conductive nano fillers alignment on the dielectric properties of copolymer matrix

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