Título: | DEVELOPMENT OF LOW-COST POLYMER ELECTRODES FOR GEOTECHNICAL APPLICATIONS | ||||||||||||
Autor: |
RONALD BEYNER MEJIA SANCHEZ |
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Colaborador(es): |
JOSE TAVARES ARARUNA JUNIOR - Orientador ROBERTO RIBEIRO DE AVILLEZ - Coorientador |
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Catalogação: | 29/JUN/2023 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
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/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=63052&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=63052&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.63052 | ||||||||||||
Resumo: | |||||||||||||
This research aimed to develop electrodes that have high resistance to
corrosion, low electrochemical activity, ease of manufacturing and economically
viable. The experimental work was focused on the development of polymeric
electrodes through three different procedures. The first procedure involved the
synthesis of copper oxide at the nanometric scale. The second one involved the
synthesis of pure copper at the nanometric scale. Finally, the last one used
commercial alloys obtained from a mixture of copper and zinc. Their filaments were
incorporated into a polymer matrix to obtain the electrodes. The brass wire
electrode mixed with epoxy resin presented the best performance due to its high
electrical conductivity, low cost, and ease of manufacturing. These polymer
electrodes presented good corrosion resistance in aggressive environments, which
are caused by pH variation during the electro-drainage process. The experimental
setup aimed the comparison of the behavior between the electrode with bass
filaments immersed in an epoxy resin matrix and copper electrodes. The
comparison has shown that copper electrodes undergo rapid corrosion with higher
rate of mass loss generating oxides. These oxides are deposited on the surface of
the electrode reducing its electrical conduction capacity. On the other hand, the
electrodes developed in the present study showed a low loss of mass. In relation to
energy consumption during the electro-drainage process, it was observed that the
tests with copper electrodes present higher energy demand than the developed
electrodes.
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