Título: | ADAPTATION OF A FORCE TENSIOMETER TO PERFORM RHEOMETRY DURING COMPRESSION AND ISOTROPIC EXPANSION OF FLAT LIQUID-GAS INTERFACES WITH THE PRESENCE OF SURFACTANT | ||||||||||||
Autor(es): |
HENRIQUE NUNES UCHOA |
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Colaborador(es): |
PAULO ROBERTO DE SOUZA MENDES - Orientador BRUNO DA SILVA FONSECA - Coorientador |
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Catalogação: | 18/JUL/2023 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | SENIOR PROJECT | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=63270@1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=63270@2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.63270 | ||||||||||||
Resumo: | |||||||||||||
Rheometry is present in different sectors of the pharmaceutical, cosmetics and food
industries, in the manufacture of paints and cement and in behavior analysis of
polymers such as rubber, for example.
One segment of rheometry is the study of surface tensions and pressures at the
interface of fluids and how the presence of surfactants influences these variables. An
existing experimental apparatus is the Langmuir’s cuba, developed to measure the
surface tension of an interface with surfactant, during its unidirectional compression.
The project seeks to adapt a force tensiometer to perform measurements analogous
to the cuba, only through an isotropic compression, without the presence of shear
stresses throughout the experiment. To then compare the values obtained in the
adapted equipment with those obtained in the Langmuir apparatus.
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