Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil)
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerâmica (São Paulo. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132016000300272 |
Resumo: | Abstract Clays of different composition have been used in the development of polymer nanocomposites. The utilization of bentonite clays of the State of Paraíba, Brazil, has been emphasized mainly due to their availability. However, these bentonite deposits are becoming exhausted after several years of exploitation. Thus, the aim of this work was to characterize bentonite clays recently discovered in the municipality of Cubati, Paraíba. The samples underwent a particle size classification step and were characterized by granulometric analysis by laser diffraction, X-ray fluorescence, X-ray diffraction, infrared spectroscopy, thermogravimetric analysis and cation exchange capacity. The results of particle size distribution showed that the clay samples have similar physical characteristics to bentonite clays of Boa Vista, Paraíba. Results of X-ray diffraction indicated that the mineralogical composition of the samples consisted of montmorillonite, kaolinite and quartz. The characterization of the samples by FTIR confirmed these results. Results of chemical analysis showed that the samples are polycationic bentonite clays and have predominantly different exchangeable cations similar to those seen in South American bentonites. |
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Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil)claybentoniteCubaticharacterizationpolymer nanocompositesAbstract Clays of different composition have been used in the development of polymer nanocomposites. The utilization of bentonite clays of the State of Paraíba, Brazil, has been emphasized mainly due to their availability. However, these bentonite deposits are becoming exhausted after several years of exploitation. Thus, the aim of this work was to characterize bentonite clays recently discovered in the municipality of Cubati, Paraíba. The samples underwent a particle size classification step and were characterized by granulometric analysis by laser diffraction, X-ray fluorescence, X-ray diffraction, infrared spectroscopy, thermogravimetric analysis and cation exchange capacity. The results of particle size distribution showed that the clay samples have similar physical characteristics to bentonite clays of Boa Vista, Paraíba. Results of X-ray diffraction indicated that the mineralogical composition of the samples consisted of montmorillonite, kaolinite and quartz. The characterization of the samples by FTIR confirmed these results. Results of chemical analysis showed that the samples are polycationic bentonite clays and have predominantly different exchangeable cations similar to those seen in South American bentonites.Associação Brasileira de Cerâmica2016-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132016000300272Cerâmica v.62 n.363 2016reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132016623631970info:eu-repo/semantics/openAccessOliveira,C. I. R. deRocha,M. C. G.Silva,A. L. N. daBertolino,L. C.eng2016-09-19T00:00:00Zoai:scielo:S0366-69132016000300272Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2016-09-19T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) |
title |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) |
spellingShingle |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) Oliveira,C. I. R. de clay bentonite Cubati characterization polymer nanocomposites |
title_short |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) |
title_full |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) |
title_fullStr |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) |
title_full_unstemmed |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) |
title_sort |
Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil) |
author |
Oliveira,C. I. R. de |
author_facet |
Oliveira,C. I. R. de Rocha,M. C. G. Silva,A. L. N. da Bertolino,L. C. |
author_role |
author |
author2 |
Rocha,M. C. G. Silva,A. L. N. da Bertolino,L. C. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Oliveira,C. I. R. de Rocha,M. C. G. Silva,A. L. N. da Bertolino,L. C. |
dc.subject.por.fl_str_mv |
clay bentonite Cubati characterization polymer nanocomposites |
topic |
clay bentonite Cubati characterization polymer nanocomposites |
description |
Abstract Clays of different composition have been used in the development of polymer nanocomposites. The utilization of bentonite clays of the State of Paraíba, Brazil, has been emphasized mainly due to their availability. However, these bentonite deposits are becoming exhausted after several years of exploitation. Thus, the aim of this work was to characterize bentonite clays recently discovered in the municipality of Cubati, Paraíba. The samples underwent a particle size classification step and were characterized by granulometric analysis by laser diffraction, X-ray fluorescence, X-ray diffraction, infrared spectroscopy, thermogravimetric analysis and cation exchange capacity. The results of particle size distribution showed that the clay samples have similar physical characteristics to bentonite clays of Boa Vista, Paraíba. Results of X-ray diffraction indicated that the mineralogical composition of the samples consisted of montmorillonite, kaolinite and quartz. The characterization of the samples by FTIR confirmed these results. Results of chemical analysis showed that the samples are polycationic bentonite clays and have predominantly different exchangeable cations similar to those seen in South American bentonites. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-01 |
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=S0366-69132016000300272 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132016000300272 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0366-69132016623631970 |
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 |
Associação Brasileira de Cerâmica |
publisher.none.fl_str_mv |
Associação Brasileira de Cerâmica |
dc.source.none.fl_str_mv |
Cerâmica v.62 n.363 2016 reponame:Cerâmica (São Paulo. Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Cerâmica (São Paulo. Online) |
collection |
Cerâmica (São Paulo. Online) |
repository.name.fl_str_mv |
Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
ceram.abc@gmail.com||ceram.abc@gmail.com |
_version_ |
1748936783458992128 |