COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/1954 |
Resumo: | Cellulose from cotton linter was dissolved in NaOH/urea solvent at -13 °C. Then the dissolved cellulose solvent was coagulated in distilled water and two types of sulphate based coagulant which were 5 wt% H2SO4 and 5 wt% (NH4)2SO4 to form regenerated cellulose membrane (RCM). Dried membranes were characterized by using XRD, tensile machine and FTIR. As compared the other two types of sulphate based coagulant, the RCM coagulated in distilled water has the highest tensile and crystallinity but showed the lowest value for the elongation at break. Meanwhile, the RCM coagulated in 5 wt% (NH4)2SO4 has the lowest tensile strength and crystallinity with the highest value of the elongation at break. The RCM coagulated in 5 wt% H2SO4 has intermediate results for all tensile strength, elongation at break and crystallinity compared to those coagulated in distilled water and 5 wt% (NH4)2SO4. |
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Cerne (Online) |
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COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANTcrystallinitycoagulantNaOH/urearegenerated cellulosesulphate basedCellulose from cotton linter was dissolved in NaOH/urea solvent at -13 °C. Then the dissolved cellulose solvent was coagulated in distilled water and two types of sulphate based coagulant which were 5 wt% H2SO4 and 5 wt% (NH4)2SO4 to form regenerated cellulose membrane (RCM). Dried membranes were characterized by using XRD, tensile machine and FTIR. As compared the other two types of sulphate based coagulant, the RCM coagulated in distilled water has the highest tensile and crystallinity but showed the lowest value for the elongation at break. Meanwhile, the RCM coagulated in 5 wt% (NH4)2SO4 has the lowest tensile strength and crystallinity with the highest value of the elongation at break. The RCM coagulated in 5 wt% H2SO4 has intermediate results for all tensile strength, elongation at break and crystallinity compared to those coagulated in distilled water and 5 wt% (NH4)2SO4.CERNECERNE2019-04-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/1954CERNE; Vol. 25 No. 1 (2019); 18-24CERNE; v. 25 n. 1 (2019); 18-242317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://cerne.ufla.br/site/index.php/CERNE/article/view/1954/1112Copyright (c) 2019 CERNEinfo:eu-repo/semantics/openAccessZakaria, Sarani2019-06-05T14:08:50Zoai:cerne.ufla.br:article/1954Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:54:38.750884Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT |
title |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT |
spellingShingle |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT Zakaria, Sarani crystallinity coagulant NaOH/urea regenerated cellulose sulphate based |
title_short |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT |
title_full |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT |
title_fullStr |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT |
title_full_unstemmed |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT |
title_sort |
COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT |
author |
Zakaria, Sarani |
author_facet |
Zakaria, Sarani |
author_role |
author |
dc.contributor.author.fl_str_mv |
Zakaria, Sarani |
dc.subject.por.fl_str_mv |
crystallinity coagulant NaOH/urea regenerated cellulose sulphate based |
topic |
crystallinity coagulant NaOH/urea regenerated cellulose sulphate based |
description |
Cellulose from cotton linter was dissolved in NaOH/urea solvent at -13 °C. Then the dissolved cellulose solvent was coagulated in distilled water and two types of sulphate based coagulant which were 5 wt% H2SO4 and 5 wt% (NH4)2SO4 to form regenerated cellulose membrane (RCM). Dried membranes were characterized by using XRD, tensile machine and FTIR. As compared the other two types of sulphate based coagulant, the RCM coagulated in distilled water has the highest tensile and crystallinity but showed the lowest value for the elongation at break. Meanwhile, the RCM coagulated in 5 wt% (NH4)2SO4 has the lowest tensile strength and crystallinity with the highest value of the elongation at break. The RCM coagulated in 5 wt% H2SO4 has intermediate results for all tensile strength, elongation at break and crystallinity compared to those coagulated in distilled water and 5 wt% (NH4)2SO4. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-23 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/1954 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/1954 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/1954/1112 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 25 No. 1 (2019); 18-24 CERNE; v. 25 n. 1 (2019); 18-24 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874943717998592 |