Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276

Detalhes bibliográficos
Autor(a) principal: Haraguchi, Shirani Kaori
Data de Publicação: 2013
Outros Autores: Silva, Adriano Antonio, Tenório-Neto, Ernandes Taveira, Carvalho, Gizilene Maria de, Muniz, Edvani Curti, Rubira, Adley Forti
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/20276
Resumo: This work describes the synthesis of glycerol-derived polyurethane nanocomposite films containing unmodified cellulose nanowhiskers (CNW) or hexamethylene diisocyanate-modified cellulose nanowhiskers (HDICNW) as a mechanical support.  Cellulose was prepared from sugarcane bagasse using a delignification and whitening approach that is wholly free of chlorine. CNW’s were obtained by acid hydrolysis in hydrochloric acid. The formation of nanocomposites was demonstrated by NMR, TEM, FTIR and WAXD. The films with different concentrations of CNW and HDICNW were characterized by FTIR spectroscopy, and stress-strain measurements. The samples experienced plastic deformation as subjected to an increasing elongation load, and right after yield limit, they fractured without necking. In such a case, the limit tension, which is the maximum stress supported by the sample, matches with the rupture tension. Polyurethane nanocomposites with CNW (CNW-PU) showed values of modulus of elasticity and tensile strength higher than HDICNW-PU.   
id UEM-6_b9a87e5e2e6aa717a82c2c13696e42da
oai_identifier_str oai:periodicos.uem.br/ojs:article/20276
network_acronym_str UEM-6
network_name_str Acta scientiarum. Technology (Online)
repository_id_str
spelling Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276polyurethanecellulose nanowhiskersugarcane bagasse1.06.01.07-4This work describes the synthesis of glycerol-derived polyurethane nanocomposite films containing unmodified cellulose nanowhiskers (CNW) or hexamethylene diisocyanate-modified cellulose nanowhiskers (HDICNW) as a mechanical support.  Cellulose was prepared from sugarcane bagasse using a delignification and whitening approach that is wholly free of chlorine. CNW’s were obtained by acid hydrolysis in hydrochloric acid. The formation of nanocomposites was demonstrated by NMR, TEM, FTIR and WAXD. The films with different concentrations of CNW and HDICNW were characterized by FTIR spectroscopy, and stress-strain measurements. The samples experienced plastic deformation as subjected to an increasing elongation load, and right after yield limit, they fractured without necking. In such a case, the limit tension, which is the maximum stress supported by the sample, matches with the rupture tension. Polyurethane nanocomposites with CNW (CNW-PU) showed values of modulus of elasticity and tensile strength higher than HDICNW-PU.   Universidade Estadual De Maringá2013-05-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2027610.4025/actascitechnol.v35i4.20276Acta Scientiarum. Technology; Vol 35 No 4 (2013); 747-755Acta Scientiarum. Technology; v. 35 n. 4 (2013); 747-7551806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/20276/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/20276/pdf_1Haraguchi, Shirani KaoriSilva, Adriano AntonioTenório-Neto, Ernandes TaveiraCarvalho, Gizilene Maria deMuniz, Edvani CurtiRubira, Adley Fortiinfo:eu-repo/semantics/openAccess2024-05-17T13:03:41Zoai:periodicos.uem.br/ojs:article/20276Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:03:41Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
title Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
spellingShingle Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
Haraguchi, Shirani Kaori
polyurethane
cellulose nanowhisker
sugarcane bagasse
1.06.01.07-4
title_short Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
title_full Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
title_fullStr Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
title_full_unstemmed Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
title_sort Glycerol-derived polyurethane nanocomposites containing cellulose nanowhiskers - doi: 10.4025/actascitechnol.v35i4.20276
author Haraguchi, Shirani Kaori
author_facet Haraguchi, Shirani Kaori
Silva, Adriano Antonio
Tenório-Neto, Ernandes Taveira
Carvalho, Gizilene Maria de
Muniz, Edvani Curti
Rubira, Adley Forti
author_role author
author2 Silva, Adriano Antonio
Tenório-Neto, Ernandes Taveira
Carvalho, Gizilene Maria de
Muniz, Edvani Curti
Rubira, Adley Forti
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Haraguchi, Shirani Kaori
Silva, Adriano Antonio
Tenório-Neto, Ernandes Taveira
Carvalho, Gizilene Maria de
Muniz, Edvani Curti
Rubira, Adley Forti
dc.subject.por.fl_str_mv polyurethane
cellulose nanowhisker
sugarcane bagasse
1.06.01.07-4
topic polyurethane
cellulose nanowhisker
sugarcane bagasse
1.06.01.07-4
description This work describes the synthesis of glycerol-derived polyurethane nanocomposite films containing unmodified cellulose nanowhiskers (CNW) or hexamethylene diisocyanate-modified cellulose nanowhiskers (HDICNW) as a mechanical support.  Cellulose was prepared from sugarcane bagasse using a delignification and whitening approach that is wholly free of chlorine. CNW’s were obtained by acid hydrolysis in hydrochloric acid. The formation of nanocomposites was demonstrated by NMR, TEM, FTIR and WAXD. The films with different concentrations of CNW and HDICNW were characterized by FTIR spectroscopy, and stress-strain measurements. The samples experienced plastic deformation as subjected to an increasing elongation load, and right after yield limit, they fractured without necking. In such a case, the limit tension, which is the maximum stress supported by the sample, matches with the rupture tension. Polyurethane nanocomposites with CNW (CNW-PU) showed values of modulus of elasticity and tensile strength higher than HDICNW-PU.   
publishDate 2013
dc.date.none.fl_str_mv 2013-05-23
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/20276
10.4025/actascitechnol.v35i4.20276
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/20276
identifier_str_mv 10.4025/actascitechnol.v35i4.20276
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/20276/pdf
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/20276/pdf_1
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 35 No 4 (2013); 747-755
Acta Scientiarum. Technology; v. 35 n. 4 (2013); 747-755
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
_version_ 1799315335403274240

Registros relacionados