Critical Assessment of the Surface Tension determined by the Maximum Pressure Bubble Method

Detalhes bibliográficos
Autor(a) principal: Benedetto,Franco Emmanuel
Data de Publicação: 2015
Outros Autores: Zolotucho,Hector, Prado,Miguel Oscar
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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spelling 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

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