The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles

In this study, six solvents (water, diiodomethane, bromonaphthalene, formamide, ethanol and ethylene glycol) were examined for three nanoparticle substrates, zinc oxide and titanium dioxide (21 nm and 100 nm), with the goal of assessing the suitability of a modified drop penetration method (DPM) for...

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Autores principales: Garner, Sabrina M., O’Rear, Edgar A., Khajotia, Sharukh Soli, Florez, Fernando Luis Esteban
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353180/
https://www.ncbi.nlm.nih.gov/pubmed/32498241
http://dx.doi.org/10.3390/nano10061099
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author Garner, Sabrina M.
O’Rear, Edgar A.
Khajotia, Sharukh Soli
Florez, Fernando Luis Esteban
author_facet Garner, Sabrina M.
O’Rear, Edgar A.
Khajotia, Sharukh Soli
Florez, Fernando Luis Esteban
author_sort Garner, Sabrina M.
collection PubMed
description In this study, six solvents (water, diiodomethane, bromonaphthalene, formamide, ethanol and ethylene glycol) were examined for three nanoparticle substrates, zinc oxide and titanium dioxide (21 nm and 100 nm), with the goal of assessing the suitability of a modified drop penetration method (DPM) for orders of magnitude smaller particles. Nanoparticles were compressed into flat discs and the solvent dropped on the surface while the image with time was recorded. Contact angles were in reasonable agreement with literature over the range of 20–80°, but failed to provide acceptable results for surface energy components. It was necessary to eliminate certain solvents and substrates not meeting the selection criteria.
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spelling pubmed-73531802020-07-15 The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles Garner, Sabrina M. O’Rear, Edgar A. Khajotia, Sharukh Soli Florez, Fernando Luis Esteban Nanomaterials (Basel) Article In this study, six solvents (water, diiodomethane, bromonaphthalene, formamide, ethanol and ethylene glycol) were examined for three nanoparticle substrates, zinc oxide and titanium dioxide (21 nm and 100 nm), with the goal of assessing the suitability of a modified drop penetration method (DPM) for orders of magnitude smaller particles. Nanoparticles were compressed into flat discs and the solvent dropped on the surface while the image with time was recorded. Contact angles were in reasonable agreement with literature over the range of 20–80°, but failed to provide acceptable results for surface energy components. It was necessary to eliminate certain solvents and substrates not meeting the selection criteria. MDPI 2020-06-02 /pmc/articles/PMC7353180/ /pubmed/32498241 http://dx.doi.org/10.3390/nano10061099 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
Garner, Sabrina M.
O’Rear, Edgar A.
Khajotia, Sharukh Soli
Florez, Fernando Luis Esteban
The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles
title The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles
title_full The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles
title_fullStr The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles
title_full_unstemmed The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles
title_short The Applicability of a Drop Penetration Method to Measure Contact Angles on TiO(2) and ZnO Nanoparticles
title_sort applicability of a drop penetration method to measure contact angles on tio(2) and zno nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353180/
https://www.ncbi.nlm.nih.gov/pubmed/32498241
http://dx.doi.org/10.3390/nano10061099
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