Electroconductive starch/multi-walled carbon nanotube films plasticized by 1-ethyl-3-methylimidazolium acetate

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Title: Electroconductive starch/multi-walled carbon nanotube films plasticized by 1-ethyl-3-methylimidazolium acetate
Authors: Domene-López, Daniel | Delgado-Marín, José Javier | García Quesada, Juan Carlos | Martin-Gullon, Ignacio | Montalbán, Mercedes G.
Research Group/s: Residuos, Energía, Medio Ambiente y Nanotecnología (REMAN)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química
Keywords: Starch film | Multi-walled carbon nanotube | 1-ethyl-3-methylimidazolium acetate | Electrical conductivity | Mechanical properties
Knowledge Area: Ingeniería Química
Issue Date: 1-Feb-2019
Publisher: Elsevier
Citation: Carbohydrate Polymers. 2020, 229: 115545. doi:10.1016/j.carbpol.2019.115545
Abstract: Starch/multi-walled carbon nanotube (MWCNT) films were prepared by casting using an ionic liquid (1-ethyl-3-methylimidazolium acetate, [emim+][Ac−]) as plasticizer for the first time. The effect of the MWCNT content (0.25–5 wt.%, with respect to the sum of starch and plasticizer mass) on thermal, mechanical and electroconductive behavior of the films was studied. Films containing 0.5 wt.% MWCNT showed increases of 327 % in maximum tensile strength, 2484 % in Young’s modulus and 82 % in elongation at break. The significant improvements are explained by the good MWCNT dispersion in the matrix and by the effect of [emim+][Ac−] as an efficient plasticizer, which leads to higher extensibility. The MWCNT/[emim+][Ac−] combination have a synergistic effect on film electrical conductivity, increasing a 130% (3 wt.% MWCNT). These films, easily prepared by a “green” process, have potential applications in the packaging industry but also in the field of lithium batteries, fuel cells and dye-sensitized solar cells.
Sponsor: This work was partially supported from the European Commission (FEDER/ERDF) and the Spanish MINECO (Ref. CTQ2016-78246-R). M.G. Montalbán acknowledges support from MINECO (Juan de la Cierva-Formación contract, Ref. FJCI-2016-28081).
URI: http://hdl.handle.net/10045/100007
ISSN: 0144-8617 (Print) | 1879-1344 (Online)
DOI: 10.1016/j.carbpol.2019.115545
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Elsevier Ltd.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.carbpol.2019.115545
Appears in Collections:INV - REMAN - Artículos de Revistas

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