THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2017 |
| Outros Autores: | , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Revista de Engenharia Química e Química |
| Texto Completo: | https://periodicos.ufv.br/jcec/article/view/2446941603032017404 |
Resumo: | The relation between the cellulose nanocrystals (CNC) dynamic properties and the centrifugation G force applied on their purification process was investigated using the depolarized dynamic light scattering technic. Samples containing CNC were prepared using sulfuric acid hydrolysis and centrifugated on the following G forces: 1840, 4140, 7370, 11510 e 16580. The translational and rotational diffusion coefficients were determined for the different samples, from these values, the CNC widths (d) and lengths (L) were calculated. The values for the d and L lied from 213 ± 10 nm to 294 ± 14 nm and 4,4 ± 1,2 nm to 9,5 ± 2,0nm, respectively. The results agree with the the literature, confirming the applicability of the technic on the study of NCC dynamic properties in aqueous suspensions. There was no significant variation on the values of L by the increment on the G force within the studied interval. On the other hand, d reduced with the G force increase for values above 7370. |
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THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZEEFEITO DA ETAPA DE CENTRIFUGAÇÃO NO TAMANHO DE NANOCRISTAIS DE CELULOSEcellulose nanocrysralscentrifugationG forcedynamic light scatteringnanostructures characterizationnanocristais de celulosecentrifugaçãoforça Gespalhamento dinâmico de luzcaracterização de nanoestruturasThe relation between the cellulose nanocrystals (CNC) dynamic properties and the centrifugation G force applied on their purification process was investigated using the depolarized dynamic light scattering technic. Samples containing CNC were prepared using sulfuric acid hydrolysis and centrifugated on the following G forces: 1840, 4140, 7370, 11510 e 16580. The translational and rotational diffusion coefficients were determined for the different samples, from these values, the CNC widths (d) and lengths (L) were calculated. The values for the d and L lied from 213 ± 10 nm to 294 ± 14 nm and 4,4 ± 1,2 nm to 9,5 ± 2,0nm, respectively. The results agree with the the literature, confirming the applicability of the technic on the study of NCC dynamic properties in aqueous suspensions. There was no significant variation on the values of L by the increment on the G force within the studied interval. On the other hand, d reduced with the G force increase for values above 7370.Investigou-se, utilizando a técnica de espalhamento dinâmico de luz depolarizado, a relação das propriedades dinâmicas de suspensões de nanocristais de celulose (NCC) com a força G de centrifugação aplicada no processo de purificação das mesmas. Amostras contendo NCC foram preparadas por meio de hidrólise com ácido sulfúrico e centrifugadas nas intensidades de 1840, 4140, 7370, 11510 e 16580 de força G. Determinou-se os coeficientes de difusão translacionais e rotacionais e, a partir destes, calculou-se as larguras (d) e os comprimentos (L) dos NCC. Os valores de L e de d encontraram-se nas faixas de 213 ± 10 a 294 ± 14nm e de 4,4 ± 1,2 a 9,5 ± 2,0nm, respectivamente. Os resultados concordaram com os disponíveis na literatura, confirmando a aplicabilidade da técnica no estudo da dinâmica dos NCC em suspensões aquosas. Não observou-se variação significativa de L com o aumento da força G na faixa estudada. Por outro lado, houve redução de d para valores de força G acima de 7370.Universidade Federal de Viçosa - UFV2017-03-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/kswpshttps://periodicos.ufv.br/jcec/article/view/244694160303201740410.18540/jcecvl3iss3pp404-417The Journal of Engineering and Exact Sciences; Vol. 3 No. 3 (2017); 404-417The Journal of Engineering and Exact Sciences; Vol. 3 Núm. 3 (2017); 404-417The Journal of Engineering and Exact Sciences; v. 3 n. 3 (2017); 404-4172527-1075reponame:Revista de Engenharia Química e Químicainstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/jcec/article/view/2446941603032017404/pdfSoares, Diego da SilvaMartins, Fernanda PereiraPuiatti, Gustavo AlvesAmaral, Rafael AlvesTemoteo, Rafael LuizCarmo, Thaisa GomesGermano, Vanessa Kely de CastroSilva, Deusanilde de JesusTeixeira, Alvaro Vianna Novaes de Carvalhoinfo:eu-repo/semantics/openAccess2020-07-14T22:33:49Zoai:ojs.periodicos.ufv.br:article/2203Revistahttp://www.seer.ufv.br/seer/rbeq2/index.php/req2/indexONGhttps://periodicos.ufv.br/jcec/oaijcec.journal@ufv.br||req2@ufv.br2446-94162446-9416opendoar:2020-07-14T22:33:49Revista de Engenharia Química e Química - Universidade Federal de Viçosa (UFV)false |
| dc.title.none.fl_str_mv |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE EFEITO DA ETAPA DE CENTRIFUGAÇÃO NO TAMANHO DE NANOCRISTAIS DE CELULOSE |
| title |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE |
| spellingShingle |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE Soares, Diego da Silva cellulose nanocrysrals centrifugation G force dynamic light scattering nanostructures characterization nanocristais de celulose centrifugação força G espalhamento dinâmico de luz caracterização de nanoestruturas |
| title_short |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE |
| title_full |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE |
| title_fullStr |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE |
| title_full_unstemmed |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE |
| title_sort |
THE EFFECT OF CENTRIFUGATION STAGE ON CELLULOSE NANOCRYSTALS’ SIZE |
| author |
Soares, Diego da Silva |
| author_facet |
Soares, Diego da Silva Martins, Fernanda Pereira Puiatti, Gustavo Alves Amaral, Rafael Alves Temoteo, Rafael Luiz Carmo, Thaisa Gomes Germano, Vanessa Kely de Castro Silva, Deusanilde de Jesus Teixeira, Alvaro Vianna Novaes de Carvalho |
| author_role |
author |
| author2 |
Martins, Fernanda Pereira Puiatti, Gustavo Alves Amaral, Rafael Alves Temoteo, Rafael Luiz Carmo, Thaisa Gomes Germano, Vanessa Kely de Castro Silva, Deusanilde de Jesus Teixeira, Alvaro Vianna Novaes de Carvalho |
| author2_role |
author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Soares, Diego da Silva Martins, Fernanda Pereira Puiatti, Gustavo Alves Amaral, Rafael Alves Temoteo, Rafael Luiz Carmo, Thaisa Gomes Germano, Vanessa Kely de Castro Silva, Deusanilde de Jesus Teixeira, Alvaro Vianna Novaes de Carvalho |
| dc.subject.por.fl_str_mv |
cellulose nanocrysrals centrifugation G force dynamic light scattering nanostructures characterization nanocristais de celulose centrifugação força G espalhamento dinâmico de luz caracterização de nanoestruturas |
| topic |
cellulose nanocrysrals centrifugation G force dynamic light scattering nanostructures characterization nanocristais de celulose centrifugação força G espalhamento dinâmico de luz caracterização de nanoestruturas |
| description |
The relation between the cellulose nanocrystals (CNC) dynamic properties and the centrifugation G force applied on their purification process was investigated using the depolarized dynamic light scattering technic. Samples containing CNC were prepared using sulfuric acid hydrolysis and centrifugated on the following G forces: 1840, 4140, 7370, 11510 e 16580. The translational and rotational diffusion coefficients were determined for the different samples, from these values, the CNC widths (d) and lengths (L) were calculated. The values for the d and L lied from 213 ± 10 nm to 294 ± 14 nm and 4,4 ± 1,2 nm to 9,5 ± 2,0nm, respectively. The results agree with the the literature, confirming the applicability of the technic on the study of NCC dynamic properties in aqueous suspensions. There was no significant variation on the values of L by the increment on the G force within the studied interval. On the other hand, d reduced with the G force increase for values above 7370. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017-03-08 |
| 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://periodicos.ufv.br/jcec/article/view/2446941603032017404 10.18540/jcecvl3iss3pp404-417 |
| url |
https://periodicos.ufv.br/jcec/article/view/2446941603032017404 |
| identifier_str_mv |
10.18540/jcecvl3iss3pp404-417 |
| dc.language.iso.fl_str_mv |
por |
| language |
por |
| dc.relation.none.fl_str_mv |
https://periodicos.ufv.br/jcec/article/view/2446941603032017404/pdf |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
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application/kswps |
| dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
| publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
| dc.source.none.fl_str_mv |
The Journal of Engineering and Exact Sciences; Vol. 3 No. 3 (2017); 404-417 The Journal of Engineering and Exact Sciences; Vol. 3 Núm. 3 (2017); 404-417 The Journal of Engineering and Exact Sciences; v. 3 n. 3 (2017); 404-417 2527-1075 reponame:Revista de Engenharia Química e Química instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
| instname_str |
Universidade Federal de Viçosa (UFV) |
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UFV |
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UFV |
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Revista de Engenharia Química e Química |
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Revista de Engenharia Química e Química |
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Revista de Engenharia Química e Química - Universidade Federal de Viçosa (UFV) |
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jcec.journal@ufv.br||req2@ufv.br |
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1800211186857279488 |