Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants

<abstract language="eng">Surface tension knowledge of surfactants aqueous solutions is important during amphiphilic molecule manufacturing and new product development, as feedback information to handle synthesis parameters to target performance. Drop counting method is an interesting...

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Main Authors:	Érico Teixeira Neto, Marcos Maziero Malta, Ronaldo Gonçalves dos Santos
Format:	Article
Language:	English
Published:	Sociedade Brasileira de Química 2009-01-01
Series:	Química Nova
Subjects:	nonylphenol ethoxylates ethylene oxide petrochemical industry
Online Access:	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000100037

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spelling	doaj-4cf670774c9f42f5ad22a2eecf578bdf2020-11-24T22:23:48ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642009-01-0132122322710.1590/S0100-40422009000100037Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactantsÉrico Teixeira NetoMarcos Maziero MaltaRonaldo Gonçalves dos Santos<abstract language="eng">Surface tension knowledge of surfactants aqueous solutions is important during amphiphilic molecule manufacturing and new product development, as feedback information to handle synthesis parameters to target performance. Drop counting method is an interesting simplification of drop weight method for surface tension measurements. A simple laboratory measurement device, with capability for temperature control, was assembled to allow investigation of ethoxylated surfactants. The implementation of the method was preceded by a detailed investigation of two factors that may affect the measured surface tension: drop formation velocity and surfactant ethoxylation degree. The limitations of the method are discussed on this basis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000100037nonylphenol ethoxylatesethylene oxidepetrochemical industry
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Érico Teixeira Neto Marcos Maziero Malta Ronaldo Gonçalves dos Santos
spellingShingle	Érico Teixeira Neto Marcos Maziero Malta Ronaldo Gonçalves dos Santos Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants Química Nova nonylphenol ethoxylates ethylene oxide petrochemical industry
author_facet	Érico Teixeira Neto Marcos Maziero Malta Ronaldo Gonçalves dos Santos
author_sort	Érico Teixeira Neto
title	Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants
title_short	Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants
title_full	Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants
title_fullStr	Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants
title_full_unstemmed	Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants
title_sort	medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants
publisher	Sociedade Brasileira de Química
series	Química Nova
issn	0100-4042 1678-7064
publishDate	2009-01-01
description	<abstract language="eng">Surface tension knowledge of surfactants aqueous solutions is important during amphiphilic molecule manufacturing and new product development, as feedback information to handle synthesis parameters to target performance. Drop counting method is an interesting simplification of drop weight method for surface tension measurements. A simple laboratory measurement device, with capability for temperature control, was assembled to allow investigation of ethoxylated surfactants. The implementation of the method was preceded by a detailed investigation of two factors that may affect the measured surface tension: drop formation velocity and surfactant ethoxylation degree. The limitations of the method are discussed on this basis.
topic	nonylphenol ethoxylates ethylene oxide petrochemical industry
url	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000100037
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Medidas de tensão superficial pelo método de contagem de gotas: descrição do método e experimentos com tensoativos não-iônicos etoxilados Surface tension measurement by drop counting method: method description and experiments with etoxilated non-ionic surfactants

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