Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties

Notably, 3D printing techniques such as digital light processing (DLP) have the potential for the cost-effective and flexible production of polymer-based piezoelectric composites. To improve their properties, conductive nanomaterials can be added to the photopolymer to increase their dielectric prop...

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Autores principales:	Rytis Mitkus, Marlitt Scharnofske, Michael Sinapius
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	photopolymer resin conductive nanomaterial multi-walled carbon nanotubes graphene nanoplatelets carbon black 3D printing Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/d7ca0a98d2654fa5a783d4a1573acd4f
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spelling	oai:doaj.org-article:d7ca0a98d2654fa5a783d4a1573acd4f2021-11-25T18:48:40ZCharacterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties10.3390/polym132239482073-4360https://doaj.org/article/d7ca0a98d2654fa5a783d4a1573acd4f2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3948https://doaj.org/toc/2073-4360Notably, 3D printing techniques such as digital light processing (DLP) have the potential for the cost-effective and flexible production of polymer-based piezoelectric composites. To improve their properties, conductive nanomaterials can be added to the photopolymer to increase their dielectric properties. In this study, the microstructure, viscosity, cure depth, and dielectric properties of ultraviolet (UV) light curable 0.1 wt.% nanomaterial/photopolymer composites are investigated. The composites with multi-walled carbon nanotubes (MWCNTs), graphene nanoplatelets (GNPs), and carbon black (CB) are pre-dispersed in different solvents (acetone, isopropyl alcohol, and ethanol) before adding photopolymer and continuing dispersion. For all prepared suspensions, a reduction in viscosity is observed, which is favorable for 3D printing. In contrast, the addition of 0.1 wt.% nanomaterials, even with poor dispersion, leads to curing depth reduction up to 90% compared to pristine photopolymer, where the nanomaterial dispersion is identified as a contributing factor. The formulation of MWCNTs dispersed in ethanol is found to be the most promising for increasing the dielectric properties. The post-curing of all composites leads to charge immobility, resulting in decreased relative permittivity.Rytis MitkusMarlitt ScharnofskeMichael SinapiusMDPI AGarticlephotopolymer resinconductive nanomaterialmulti-walled carbon nanotubesgraphene nanoplateletscarbon black3D printingOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3948, p 3948 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	photopolymer resin conductive nanomaterial multi-walled carbon nanotubes graphene nanoplatelets carbon black 3D printing Organic chemistry QD241-441
spellingShingle	photopolymer resin conductive nanomaterial multi-walled carbon nanotubes graphene nanoplatelets carbon black 3D printing Organic chemistry QD241-441 Rytis Mitkus Marlitt Scharnofske Michael Sinapius Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties
description	Notably, 3D printing techniques such as digital light processing (DLP) have the potential for the cost-effective and flexible production of polymer-based piezoelectric composites. To improve their properties, conductive nanomaterials can be added to the photopolymer to increase their dielectric properties. In this study, the microstructure, viscosity, cure depth, and dielectric properties of ultraviolet (UV) light curable 0.1 wt.% nanomaterial/photopolymer composites are investigated. The composites with multi-walled carbon nanotubes (MWCNTs), graphene nanoplatelets (GNPs), and carbon black (CB) are pre-dispersed in different solvents (acetone, isopropyl alcohol, and ethanol) before adding photopolymer and continuing dispersion. For all prepared suspensions, a reduction in viscosity is observed, which is favorable for 3D printing. In contrast, the addition of 0.1 wt.% nanomaterials, even with poor dispersion, leads to curing depth reduction up to 90% compared to pristine photopolymer, where the nanomaterial dispersion is identified as a contributing factor. The formulation of MWCNTs dispersed in ethanol is found to be the most promising for increasing the dielectric properties. The post-curing of all composites leads to charge immobility, resulting in decreased relative permittivity.
format	article
author	Rytis Mitkus Marlitt Scharnofske Michael Sinapius
author_facet	Rytis Mitkus Marlitt Scharnofske Michael Sinapius
author_sort	Rytis Mitkus
title	Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties
title_short	Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties
title_full	Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties
title_fullStr	Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties
title_full_unstemmed	Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties
title_sort	characterization 0.1 wt.% nanomaterial/photopolymer composites with poor nanomaterial dispersion: viscosity, cure depth and dielectric properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d7ca0a98d2654fa5a783d4a1573acd4f
work_keys_str_mv	AT rytismitkus characterization01wtnanomaterialphotopolymercompositeswithpoornanomaterialdispersionviscositycuredepthanddielectricproperties AT marlittscharnofske characterization01wtnanomaterialphotopolymercompositeswithpoornanomaterialdispersionviscositycuredepthanddielectricproperties AT michaelsinapius characterization01wtnanomaterialphotopolymercompositeswithpoornanomaterialdispersionviscositycuredepthanddielectricproperties
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Characterization 0.1 wt.% Nanomaterial/Photopolymer Composites with Poor Nanomaterial Dispersion: Viscosity, Cure Depth and Dielectric Properties

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