An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites

Abstract In this paper, we demonstrate the fabrication of conductive porous polymers based on foaming of an aqueous dispersion of polymeric particles and multi-walled carbon nanotubes (CNT). By tuning the surface energy of the constituents, we direct their preferential adsorption at the air-liquid (...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hossein Rezvantalab, Nastaran Ghazi, Matthew J. Ambrusch, Jeffrey Infante, Shahab Shojaei-Zadeh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/437794a443924103a20d5671585eb297
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:437794a443924103a20d5671585eb297
record_format	dspace
spelling	oai:doaj.org-article:437794a443924103a20d5671585eb2972021-12-02T12:30:51ZAn Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites10.1038/s41598-017-01770-92045-2322https://doaj.org/article/437794a443924103a20d5671585eb2972017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01770-9https://doaj.org/toc/2045-2322Abstract In this paper, we demonstrate the fabrication of conductive porous polymers based on foaming of an aqueous dispersion of polymeric particles and multi-walled carbon nanotubes (CNT). By tuning the surface energy of the constituents, we direct their preferential adsorption at the air-liquid (bubble) interface or within the liquid film between the bubbles. Sintering this bi-constituent foam yields solid closed-cell porous structure which can be electrically conductive if CNT are able to form a conductive path. We measure transport (electrical and thermal), mechanical, and morphological properties of such porous structures as a function of CNT loading and the method used for their surface functionalization. For a fixed polymer volume fraction, we demonstrate the limit in which increasing CNT results in decreasing the mechanical strength of the sample due to lack of adequate polymer-CNT bond. Such lightweight conductive porous composites are considered in applications including EMI shielding, electrostatic discharge protection, and electrets.Hossein RezvantalabNastaran GhaziMatthew J. AmbruschJeffrey InfanteShahab Shojaei-ZadehNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hossein Rezvantalab Nastaran Ghazi Matthew J. Ambrusch Jeffrey Infante Shahab Shojaei-Zadeh An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites
description	Abstract In this paper, we demonstrate the fabrication of conductive porous polymers based on foaming of an aqueous dispersion of polymeric particles and multi-walled carbon nanotubes (CNT). By tuning the surface energy of the constituents, we direct their preferential adsorption at the air-liquid (bubble) interface or within the liquid film between the bubbles. Sintering this bi-constituent foam yields solid closed-cell porous structure which can be electrically conductive if CNT are able to form a conductive path. We measure transport (electrical and thermal), mechanical, and morphological properties of such porous structures as a function of CNT loading and the method used for their surface functionalization. For a fixed polymer volume fraction, we demonstrate the limit in which increasing CNT results in decreasing the mechanical strength of the sample due to lack of adequate polymer-CNT bond. Such lightweight conductive porous composites are considered in applications including EMI shielding, electrostatic discharge protection, and electrets.
format	article
author	Hossein Rezvantalab Nastaran Ghazi Matthew J. Ambrusch Jeffrey Infante Shahab Shojaei-Zadeh
author_facet	Hossein Rezvantalab Nastaran Ghazi Matthew J. Ambrusch Jeffrey Infante Shahab Shojaei-Zadeh
author_sort	Hossein Rezvantalab
title	An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites
title_short	An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites
title_full	An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites
title_fullStr	An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites
title_full_unstemmed	An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites
title_sort	aqueous-based approach for fabrication of pvdf/mwcnt porous composites
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/437794a443924103a20d5671585eb297
work_keys_str_mv	AT hosseinrezvantalab anaqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT nastaranghazi anaqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT matthewjambrusch anaqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT jeffreyinfante anaqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT shahabshojaeizadeh anaqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT hosseinrezvantalab aqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT nastaranghazi aqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT matthewjambrusch aqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT jeffreyinfante aqueousbasedapproachforfabricationofpvdfmwcntporouscomposites AT shahabshojaeizadeh aqueousbasedapproachforfabricationofpvdfmwcntporouscomposites
_version_	1718394274114961408

An Aqueous-Based Approach for Fabrication of PVDF/MWCNT Porous Composites

Ejemplares similares