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Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper

This paper reports the effect of process orientation on the mechanical behavior and piezoelectricity of electroactive paper (EAPap) made from natural cotton pulp. EAPap is fabricated by a casting and wet drawing of cellulose film after dissolving cotton with LiCl and DMAc solvent. During the fabrica...

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Detalles Bibliográficos
Autores principales: Yoon, Sean, Kim, Jung Woong, Kim, Hyun Chan, Kim, Jaehwan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981422/
https://www.ncbi.nlm.nih.gov/pubmed/31947759
http://dx.doi.org/10.3390/ma13010204
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author Yoon, Sean
Kim, Jung Woong
Kim, Hyun Chan
Kim, Jaehwan
author_facet Yoon, Sean
Kim, Jung Woong
Kim, Hyun Chan
Kim, Jaehwan
author_sort Yoon, Sean
collection PubMed
description This paper reports the effect of process orientation on the mechanical behavior and piezoelectricity of electroactive paper (EAPap) made from natural cotton pulp. EAPap is fabricated by a casting and wet drawing of cellulose film after dissolving cotton with LiCl and DMAc solvent. During the fabrication, permanent wrinkles, a possible factor for performance deterioration, were found in the films. Finite element method was introduced to identify the formation mechanism behind the wrinkles. The simulation results show that the wrinkles were caused by buckling and are inevitable under any conditions. The tensile and piezoelectric tests show that the orientation dependency of the stretched EAPap gives the anisotropic characteristics on both mechanical and piezoelectric properties. In this research, the anisotropic elastic moduli and Poisson’s ratios are reported. The piezoelectric charge constant of EAPap in the linear elastic is calculated. The piezoelectric charge constants of EAPap are associated with the alignment angle in the order of 45° > 0° > 90° due to the strong shear effect. The higher stretching ratio gives the higher piezoelectricity due to the alignment of the molecular chains and the microstructure in EAPap. The highest piezoelectric charge constant is found to be 12 pC/N at a stretching ratio of 1.6 and aligning angle of 45°.
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spelling pubmed-69814222020-02-07 Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper Yoon, Sean Kim, Jung Woong Kim, Hyun Chan Kim, Jaehwan Materials (Basel) Article This paper reports the effect of process orientation on the mechanical behavior and piezoelectricity of electroactive paper (EAPap) made from natural cotton pulp. EAPap is fabricated by a casting and wet drawing of cellulose film after dissolving cotton with LiCl and DMAc solvent. During the fabrication, permanent wrinkles, a possible factor for performance deterioration, were found in the films. Finite element method was introduced to identify the formation mechanism behind the wrinkles. The simulation results show that the wrinkles were caused by buckling and are inevitable under any conditions. The tensile and piezoelectric tests show that the orientation dependency of the stretched EAPap gives the anisotropic characteristics on both mechanical and piezoelectric properties. In this research, the anisotropic elastic moduli and Poisson’s ratios are reported. The piezoelectric charge constant of EAPap in the linear elastic is calculated. The piezoelectric charge constants of EAPap are associated with the alignment angle in the order of 45° > 0° > 90° due to the strong shear effect. The higher stretching ratio gives the higher piezoelectricity due to the alignment of the molecular chains and the microstructure in EAPap. The highest piezoelectric charge constant is found to be 12 pC/N at a stretching ratio of 1.6 and aligning angle of 45°. MDPI 2020-01-03 /pmc/articles/PMC6981422/ /pubmed/31947759 http://dx.doi.org/10.3390/ma13010204 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yoon, Sean
Kim, Jung Woong
Kim, Hyun Chan
Kim, Jaehwan
Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper
title Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper
title_full Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper
title_fullStr Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper
title_full_unstemmed Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper
title_short Effect of Process Orientation on the Mechanical Behavior and Piezoelectricity of Electroactive Paper
title_sort effect of process orientation on the mechanical behavior and piezoelectricity of electroactive paper
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981422/
https://www.ncbi.nlm.nih.gov/pubmed/31947759
http://dx.doi.org/10.3390/ma13010204
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