Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000100009 |
Resumo: | The main factors that influence the value of surface tension of a liquid measured with the Maximum Pressure Bubble Method are critically evaluated. We present experimental results showing the effect of capillary diameter, capillary depth, bubble spheroidicity and liquid density at room temperature. We show that the decrease of bubble spheroidicity due to increase of capillary immersion depth is not sufficient to explain the deviations found in the measured surface tension values. Thus, we propose a simple experimental procedure that allows determining the surface tension of a liquid without any previous knowledge of its density. This procedure is especially useful when the liquid of interest exhibits variations of surface tension and density with time, as for example during condensation reactions to obtain SiO2 sols from a tetraethyl ortosilicate (TEOS) solutions during their aging process. |
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Materials research (São Carlos. Online) |
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Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Methodsurface tensionMPBMbubble deformationmaximum pressure bubble methodThe main factors that influence the value of surface tension of a liquid measured with the Maximum Pressure Bubble Method are critically evaluated. We present experimental results showing the effect of capillary diameter, capillary depth, bubble spheroidicity and liquid density at room temperature. We show that the decrease of bubble spheroidicity due to increase of capillary immersion depth is not sufficient to explain the deviations found in the measured surface tension values. Thus, we propose a simple experimental procedure that allows determining the surface tension of a liquid without any previous knowledge of its density. This procedure is especially useful when the liquid of interest exhibits variations of surface tension and density with time, as for example during condensation reactions to obtain SiO2 sols from a tetraethyl ortosilicate (TEOS) solutions during their aging process.ABM, ABC, ABPol2015-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000100009Materials Research v.18 n.1 2015reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1516-1439.232513info:eu-repo/semantics/openAccessBenedetto,Franco EmmanuelZolotucho,HectorPrado,Miguel Oscareng2015-04-10T00:00:00Zoai:scielo:S1516-14392015000100009Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2015-04-10T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method |
title |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method |
spellingShingle |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method Benedetto,Franco Emmanuel surface tension MPBM bubble deformation maximum pressure bubble method |
title_short |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method |
title_full |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method |
title_fullStr |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method |
title_full_unstemmed |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method |
title_sort |
Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method |
author |
Benedetto,Franco Emmanuel |
author_facet |
Benedetto,Franco Emmanuel Zolotucho,Hector Prado,Miguel Oscar |
author_role |
author |
author2 |
Zolotucho,Hector Prado,Miguel Oscar |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Benedetto,Franco Emmanuel Zolotucho,Hector Prado,Miguel Oscar |
dc.subject.por.fl_str_mv |
surface tension MPBM bubble deformation maximum pressure bubble method |
topic |
surface tension MPBM bubble deformation maximum pressure bubble method |
description |
The main factors that influence the value of surface tension of a liquid measured with the Maximum Pressure Bubble Method are critically evaluated. We present experimental results showing the effect of capillary diameter, capillary depth, bubble spheroidicity and liquid density at room temperature. We show that the decrease of bubble spheroidicity due to increase of capillary immersion depth is not sufficient to explain the deviations found in the measured surface tension values. Thus, we propose a simple experimental procedure that allows determining the surface tension of a liquid without any previous knowledge of its density. This procedure is especially useful when the liquid of interest exhibits variations of surface tension and density with time, as for example during condensation reactions to obtain SiO2 sols from a tetraethyl ortosilicate (TEOS) solutions during their aging process. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000100009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000100009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1516-1439.232513 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.18 n.1 2015 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212665362743296 |