Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10570-016-0996-9 http://hdl.handle.net/11449/161881 |
Resumo: | Nanofibrillated cellulose (NFC) is a type of nanomaterial based on renewable resources and produced by mechanical disintegration without chemicals. NFC is a potential reinforcing material with a high surface area and high aspect ratio, both of which increase reinforcement on the nanoscale. The raw materials used were unbleached and bleached bamboo organosolv pulp. Organosolv pulping is a cleaner process than other industrial methods (i.e. Kraft process), as it uses organic solvents during cooking and provides easy solvent recovery at the end of the process. The NFC was produced by treating unbleached and bleached bamboo organosolv pulps for 5, 10, 15 and 20 nanofibrillation cycles using the grinding method. Chemical, physical and mechanical tests were performed to determine the optimal condition for nanofibrillation. The delamination of the S2 layer of the fibers during nanofibrillation contributed to the partial removal of amorphous components (mainly lignin), which have low polarity and improved the adhesion of the fibers, particularly the unbleached cellulose. The transverse modulus of elasticity of the unbleached NFC was highest after 10 nanofibrillation cycles. Further treatment cycles decreased the modulus due to the mechanical degradation of the fibers. The unbleached NFC produced by 10 cycles have a greater transverse modulus of elasticity, the crystallite size showed increase with the nanofibrillation, and after 5 nanofibrillation cycles, no differences are observed in the morphology of the fibers. |
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Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulpNanofibrillationCelluloseGrindingReinforcementNanofibrillated cellulose (NFC) is a type of nanomaterial based on renewable resources and produced by mechanical disintegration without chemicals. NFC is a potential reinforcing material with a high surface area and high aspect ratio, both of which increase reinforcement on the nanoscale. The raw materials used were unbleached and bleached bamboo organosolv pulp. Organosolv pulping is a cleaner process than other industrial methods (i.e. Kraft process), as it uses organic solvents during cooking and provides easy solvent recovery at the end of the process. The NFC was produced by treating unbleached and bleached bamboo organosolv pulps for 5, 10, 15 and 20 nanofibrillation cycles using the grinding method. Chemical, physical and mechanical tests were performed to determine the optimal condition for nanofibrillation. The delamination of the S2 layer of the fibers during nanofibrillation contributed to the partial removal of amorphous components (mainly lignin), which have low polarity and improved the adhesion of the fibers, particularly the unbleached cellulose. The transverse modulus of elasticity of the unbleached NFC was highest after 10 nanofibrillation cycles. Further treatment cycles decreased the modulus due to the mechanical degradation of the fibers. The unbleached NFC produced by 10 cycles have a greater transverse modulus of elasticity, the crystallite size showed increase with the nanofibrillation, and after 5 nanofibrillation cycles, no differences are observed in the morphology of the fibers.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Foreign Affairs and International Trade (DFAIT), CanadaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Research Nucleus on Material for Biosystems (NAP-BIOSMAT), BrazilCanadian Bureau for International Education - CBIE, CanadaNatural Sciences and Engineering Research Council of Canada (NSERC)Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Biosyst Engn, Duque Caxias Norte St 225, BR-13630000 Pirassununga, SP, BrazilUniv Toronto, Ctr Biocomposites & Biomat Proc, Fac Forestry, Willcocks St 33, Toronto, ON M5S 3B3, CanadaLulea Univ Technol, Div Mat Sci, Lulea, SwedenKing Abdulaziz Univ, Ctr Adv Chem, Jeddah, Saudi ArabiaSao Paulo State Univ, Dept Mat & Technol, Fac Engn, Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP, BrazilSao Paulo State Univ, Dept Rural Engn, Jose Barbosa de Barros St 1780, BR-18610307 Botucatu, SP, BrazilSao Paulo State Univ, Dept Mat & Technol, Fac Engn, Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP, BrazilSao Paulo State Univ, Dept Rural Engn, Jose Barbosa de Barros St 1780, BR-18610307 Botucatu, SP, BrazilFAPESP: 2011/01128-5FAPESP: 2013/50790-8FAPESP: 2013/23810-8FAPESP: 2009/17293-5FAPESP: 2010/16524-0CNPq: 142082/2011-2CNPq: 306386/2013-5Research Nucleus on Material for Biosystems (NAP-BIOSMAT), Brazil: USP 12.1.17620.1.9SpringerUniversidade de São Paulo (USP)Univ TorontoLulea Univ TechnolKing Abdulaziz UnivUniversidade Estadual Paulista (Unesp)Correia, Viviane da CostaSantos, Valdemir dosSain, MohiniSantos, Sergio Francisco [UNESP]Leao, Alcides Lopes [UNESP]Savastano Junior, Holmer2018-11-26T17:04:31Z2018-11-26T17:04:31Z2016-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2971-2987application/pdfhttp://dx.doi.org/10.1007/s10570-016-0996-9Cellulose. Dordrecht: Springer, v. 23, n. 5, p. 2971-2987, 2016.0969-0239http://hdl.handle.net/11449/16188110.1007/s10570-016-0996-9WOS:000382634300016WOS000382634300016.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCellulose1,047info:eu-repo/semantics/openAccess2024-07-02T15:03:35Zoai:repositorio.unesp.br:11449/161881Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:05:11.839306Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp |
title |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp |
spellingShingle |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp Correia, Viviane da Costa Nanofibrillation Cellulose Grinding Reinforcement |
title_short |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp |
title_full |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp |
title_fullStr |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp |
title_full_unstemmed |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp |
title_sort |
Grinding process for the production of nanofibrillated cellulose based on unbleached and bleached bamboo organosolv pulp |
author |
Correia, Viviane da Costa |
author_facet |
Correia, Viviane da Costa Santos, Valdemir dos Sain, Mohini Santos, Sergio Francisco [UNESP] Leao, Alcides Lopes [UNESP] Savastano Junior, Holmer |
author_role |
author |
author2 |
Santos, Valdemir dos Sain, Mohini Santos, Sergio Francisco [UNESP] Leao, Alcides Lopes [UNESP] Savastano Junior, Holmer |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Univ Toronto Lulea Univ Technol King Abdulaziz Univ Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Correia, Viviane da Costa Santos, Valdemir dos Sain, Mohini Santos, Sergio Francisco [UNESP] Leao, Alcides Lopes [UNESP] Savastano Junior, Holmer |
dc.subject.por.fl_str_mv |
Nanofibrillation Cellulose Grinding Reinforcement |
topic |
Nanofibrillation Cellulose Grinding Reinforcement |
description |
Nanofibrillated cellulose (NFC) is a type of nanomaterial based on renewable resources and produced by mechanical disintegration without chemicals. NFC is a potential reinforcing material with a high surface area and high aspect ratio, both of which increase reinforcement on the nanoscale. The raw materials used were unbleached and bleached bamboo organosolv pulp. Organosolv pulping is a cleaner process than other industrial methods (i.e. Kraft process), as it uses organic solvents during cooking and provides easy solvent recovery at the end of the process. The NFC was produced by treating unbleached and bleached bamboo organosolv pulps for 5, 10, 15 and 20 nanofibrillation cycles using the grinding method. Chemical, physical and mechanical tests were performed to determine the optimal condition for nanofibrillation. The delamination of the S2 layer of the fibers during nanofibrillation contributed to the partial removal of amorphous components (mainly lignin), which have low polarity and improved the adhesion of the fibers, particularly the unbleached cellulose. The transverse modulus of elasticity of the unbleached NFC was highest after 10 nanofibrillation cycles. Further treatment cycles decreased the modulus due to the mechanical degradation of the fibers. The unbleached NFC produced by 10 cycles have a greater transverse modulus of elasticity, the crystallite size showed increase with the nanofibrillation, and after 5 nanofibrillation cycles, no differences are observed in the morphology of the fibers. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-10-01 2018-11-26T17:04:31Z 2018-11-26T17:04:31Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10570-016-0996-9 Cellulose. Dordrecht: Springer, v. 23, n. 5, p. 2971-2987, 2016. 0969-0239 http://hdl.handle.net/11449/161881 10.1007/s10570-016-0996-9 WOS:000382634300016 WOS000382634300016.pdf |
url |
http://dx.doi.org/10.1007/s10570-016-0996-9 http://hdl.handle.net/11449/161881 |
identifier_str_mv |
Cellulose. Dordrecht: Springer, v. 23, n. 5, p. 2971-2987, 2016. 0969-0239 10.1007/s10570-016-0996-9 WOS:000382634300016 WOS000382634300016.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Cellulose 1,047 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2971-2987 application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128457127755776 |