Título: | RHEOLOGICAL CHARACTERIZATION OF A VISCOELASTIC MATRIX | ||||||||||||
Autor(es): |
RAFAEL ARAGON BRAVO |
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Colaborador(es): |
PAULO ROBERTO DE SOUZA MENDES - Orientador ANDRE BRAGHINI RAMALHO - Orientador |
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Catalogação: | 23/JAN/2012 | 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=19019@1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=19019@2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.19019 | ||||||||||||
Resumo: | |||||||||||||
Many fluids used in industries have elastic characteristics and the study of
these properties becomes important for processes such as emulsions stability and extrusion.
In various industrial process operations involving polymeric materials, the
extensional behavior has a very important role in the flow of fluids. Therefore a complete
rheological characterization and development of constitutive models is essential
in order to describe the behavior of the fluid considering the elasticity.
The Boger fluid shows a Newtonian Behavior in shear flows and at the same
time it’s highly elastic, so it becomes important in study of the processes mentioned
above.
This project consisted in a complete rheological characterization of a Boger
fluid (PIB / PB) for different concentrations of short Wollastonite fibers (Calcium
Silicate), aiming to analyze the effect of the addition of these fibers in viscoelastic
fluid(Boger) behavior, and also the behavior of fibers orientation in flows which the
elastic effect is important.
A comparison between the Boger fluid and a similar viscosity Newtonian
fluid(PB-Q) behaviors was also done in order to assess the effect of elasticity in a
flow.
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