Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers

Detalhes bibliográficos
Autor(a) principal: Santos,Eduardo Braga Costa
Data de Publicação: 2018
Outros Autores: Moreno,Camila Gomes, Barros,Janetty Jany Pereira, Moura,Danusa Araújo de, Fim,Fabiana de Carvalho, Ries,Andreas, Wellen,Renate Maria Ramos, Silva,Lucineide Balbino da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000206103
Resumo: The effect of alcaline and hot water surface treatments of piassava Attalea funifera fibers was investigated. The efficiency of each treatment was evaluated by Fourier transform infrared spectroscopy, X-ray diffractometry, optical microscopy, scanning electron microscopy and atomic force microscopy. The alkaline treatments were effective in removing the superficial lignin layer from the fiber, while the hot water treatment was not. Treatment with hot water and NaOH caused fiber defibrillation. NaOH was most effective in promoting both, a decrease in fiber diameter and an increase in fiber surface area. Treatment with Ca(OH)2 led to the formation of a CaCO3 layer deposited on the fiber, preventing defibrillation. The crystalline structure of the fiber was not altered by any of the treatments, maintaining type I cellulose.
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spelling Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava FibersPiassava fiberssurface treatmentFTIRBETDRXThe effect of alcaline and hot water surface treatments of piassava Attalea funifera fibers was investigated. The efficiency of each treatment was evaluated by Fourier transform infrared spectroscopy, X-ray diffractometry, optical microscopy, scanning electron microscopy and atomic force microscopy. The alkaline treatments were effective in removing the superficial lignin layer from the fiber, while the hot water treatment was not. Treatment with hot water and NaOH caused fiber defibrillation. NaOH was most effective in promoting both, a decrease in fiber diameter and an increase in fiber surface area. Treatment with Ca(OH)2 led to the formation of a CaCO3 layer deposited on the fiber, preventing defibrillation. The crystalline structure of the fiber was not altered by any of the treatments, maintaining type I cellulose.ABM, ABC, ABPol2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000206103Materials Research v.21 n.2 2018reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2017-0365info:eu-repo/semantics/openAccessSantos,Eduardo Braga CostaMoreno,Camila GomesBarros,Janetty Jany PereiraMoura,Danusa Araújo deFim,Fabiana de CarvalhoRies,AndreasWellen,Renate Maria RamosSilva,Lucineide Balbino daeng2018-05-15T00:00:00Zoai:scielo:S1516-14392018000206103Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-05-15T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
title Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
spellingShingle Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
Santos,Eduardo Braga Costa
Piassava fibers
surface treatment
FTIR
BET
DRX
title_short Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
title_full Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
title_fullStr Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
title_full_unstemmed Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
title_sort Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers
author Santos,Eduardo Braga Costa
author_facet Santos,Eduardo Braga Costa
Moreno,Camila Gomes
Barros,Janetty Jany Pereira
Moura,Danusa Araújo de
Fim,Fabiana de Carvalho
Ries,Andreas
Wellen,Renate Maria Ramos
Silva,Lucineide Balbino da
author_role author
author2 Moreno,Camila Gomes
Barros,Janetty Jany Pereira
Moura,Danusa Araújo de
Fim,Fabiana de Carvalho
Ries,Andreas
Wellen,Renate Maria Ramos
Silva,Lucineide Balbino da
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos,Eduardo Braga Costa
Moreno,Camila Gomes
Barros,Janetty Jany Pereira
Moura,Danusa Araújo de
Fim,Fabiana de Carvalho
Ries,Andreas
Wellen,Renate Maria Ramos
Silva,Lucineide Balbino da
dc.subject.por.fl_str_mv Piassava fibers
surface treatment
FTIR
BET
DRX
topic Piassava fibers
surface treatment
FTIR
BET
DRX
description The effect of alcaline and hot water surface treatments of piassava Attalea funifera fibers was investigated. The efficiency of each treatment was evaluated by Fourier transform infrared spectroscopy, X-ray diffractometry, optical microscopy, scanning electron microscopy and atomic force microscopy. The alkaline treatments were effective in removing the superficial lignin layer from the fiber, while the hot water treatment was not. Treatment with hot water and NaOH caused fiber defibrillation. NaOH was most effective in promoting both, a decrease in fiber diameter and an increase in fiber surface area. Treatment with Ca(OH)2 led to the formation of a CaCO3 layer deposited on the fiber, preventing defibrillation. The crystalline structure of the fiber was not altered by any of the treatments, maintaining type I cellulose.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
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=S1516-14392018000206103
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000206103
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2017-0365
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.21 n.2 2018
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212673782808576

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