Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension
- Autores
- Bacigalupe, Alejandro; Poliszuk, Andrea K.; Eisenberg, Patricia; Escobar, Mariano Martin
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The goal of this work is to study the rheological properties of based-modified soy protein concentrate (SPC) adhesives and the relationship between viscoelastic properties and bonding performance. Chemical modification of SPC with sodium hydroxide was made to evaluate the effect of alkali on the viscoelastic properties. Viscosity and solubility depends directly of the 3D structure and the isoelectric point (pI) of the protein. Results show that viscosity is strongly pH dependant due to the protein unfolding. Solubility profiles exhibit the typical U-shaped curve, being higher on either side of isoelectric point. Fourier transformed infrared analysis was used to analyze Amide I (1720-1600 cm-1) and Amide III (1400-1200cm-1) band patterns which reflect the different secondary structures in proteins. The intensity of the band at 1250 cm-1 increases with respect to that at 1235 cm-1 for higher pH values. This could be associated with the destruction, at least partially, of the β-sheet structure. Bonding performance was measured in dry conditions and the wetting properties were analyzed by scanning electron microscopy. The bonding performance improves when the SPC is stabilized at pH 12 due to the protein unfolding, revealing a strong interaction between the secondary structure and the wood surface. As part of an ongoing project it was concluded that alkali modification is a suitable procedure to modify a protein suspension, improving application conditions and mechanical properties of bioadhesives of a semistructural type.
Fil: Bacigalupe, Alejandro. Instituto Nacional de Tecnología Industrial; Argentina
Fil: Poliszuk, Andrea K.. Instituto Nacional de Tecnología Industrial; Argentina
Fil: Eisenberg, Patricia. Instituto Nacional de Tecnología Industrial; Argentina
Fil: Escobar, Mariano Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Industrial; Argentina - Materia
-
Wood Adhesives
Biodegradable
Rheology - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/41504
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Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspensionBacigalupe, AlejandroPoliszuk, Andrea K.Eisenberg, PatriciaEscobar, Mariano MartinWood AdhesivesBiodegradableRheologyhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The goal of this work is to study the rheological properties of based-modified soy protein concentrate (SPC) adhesives and the relationship between viscoelastic properties and bonding performance. Chemical modification of SPC with sodium hydroxide was made to evaluate the effect of alkali on the viscoelastic properties. Viscosity and solubility depends directly of the 3D structure and the isoelectric point (pI) of the protein. Results show that viscosity is strongly pH dependant due to the protein unfolding. Solubility profiles exhibit the typical U-shaped curve, being higher on either side of isoelectric point. Fourier transformed infrared analysis was used to analyze Amide I (1720-1600 cm-1) and Amide III (1400-1200cm-1) band patterns which reflect the different secondary structures in proteins. The intensity of the band at 1250 cm-1 increases with respect to that at 1235 cm-1 for higher pH values. This could be associated with the destruction, at least partially, of the β-sheet structure. Bonding performance was measured in dry conditions and the wetting properties were analyzed by scanning electron microscopy. The bonding performance improves when the SPC is stabilized at pH 12 due to the protein unfolding, revealing a strong interaction between the secondary structure and the wood surface. As part of an ongoing project it was concluded that alkali modification is a suitable procedure to modify a protein suspension, improving application conditions and mechanical properties of bioadhesives of a semistructural type.Fil: Bacigalupe, Alejandro. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Poliszuk, Andrea K.. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Eisenberg, Patricia. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Escobar, Mariano Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Industrial; ArgentinaElsevier2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/41504Bacigalupe, Alejandro; Poliszuk, Andrea K.; Eisenberg, Patricia; Escobar, Mariano Martin; Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension; Elsevier; International Journal Of Adhesion And Adhesives; 62; 6-2015; 1-60143-7496CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijadhadh.2015.06.004info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0143749615000834info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:20Zoai:ri.conicet.gov.ar:11336/41504instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:37:20.43CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension |
title |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension |
spellingShingle |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension Bacigalupe, Alejandro Wood Adhesives Biodegradable Rheology |
title_short |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension |
title_full |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension |
title_fullStr |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension |
title_full_unstemmed |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension |
title_sort |
Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension |
dc.creator.none.fl_str_mv |
Bacigalupe, Alejandro Poliszuk, Andrea K. Eisenberg, Patricia Escobar, Mariano Martin |
author |
Bacigalupe, Alejandro |
author_facet |
Bacigalupe, Alejandro Poliszuk, Andrea K. Eisenberg, Patricia Escobar, Mariano Martin |
author_role |
author |
author2 |
Poliszuk, Andrea K. Eisenberg, Patricia Escobar, Mariano Martin |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Wood Adhesives Biodegradable Rheology |
topic |
Wood Adhesives Biodegradable Rheology |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
The goal of this work is to study the rheological properties of based-modified soy protein concentrate (SPC) adhesives and the relationship between viscoelastic properties and bonding performance. Chemical modification of SPC with sodium hydroxide was made to evaluate the effect of alkali on the viscoelastic properties. Viscosity and solubility depends directly of the 3D structure and the isoelectric point (pI) of the protein. Results show that viscosity is strongly pH dependant due to the protein unfolding. Solubility profiles exhibit the typical U-shaped curve, being higher on either side of isoelectric point. Fourier transformed infrared analysis was used to analyze Amide I (1720-1600 cm-1) and Amide III (1400-1200cm-1) band patterns which reflect the different secondary structures in proteins. The intensity of the band at 1250 cm-1 increases with respect to that at 1235 cm-1 for higher pH values. This could be associated with the destruction, at least partially, of the β-sheet structure. Bonding performance was measured in dry conditions and the wetting properties were analyzed by scanning electron microscopy. The bonding performance improves when the SPC is stabilized at pH 12 due to the protein unfolding, revealing a strong interaction between the secondary structure and the wood surface. As part of an ongoing project it was concluded that alkali modification is a suitable procedure to modify a protein suspension, improving application conditions and mechanical properties of bioadhesives of a semistructural type. Fil: Bacigalupe, Alejandro. Instituto Nacional de Tecnología Industrial; Argentina Fil: Poliszuk, Andrea K.. Instituto Nacional de Tecnología Industrial; Argentina Fil: Eisenberg, Patricia. Instituto Nacional de Tecnología Industrial; Argentina Fil: Escobar, Mariano Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Industrial; Argentina |
description |
The goal of this work is to study the rheological properties of based-modified soy protein concentrate (SPC) adhesives and the relationship between viscoelastic properties and bonding performance. Chemical modification of SPC with sodium hydroxide was made to evaluate the effect of alkali on the viscoelastic properties. Viscosity and solubility depends directly of the 3D structure and the isoelectric point (pI) of the protein. Results show that viscosity is strongly pH dependant due to the protein unfolding. Solubility profiles exhibit the typical U-shaped curve, being higher on either side of isoelectric point. Fourier transformed infrared analysis was used to analyze Amide I (1720-1600 cm-1) and Amide III (1400-1200cm-1) band patterns which reflect the different secondary structures in proteins. The intensity of the band at 1250 cm-1 increases with respect to that at 1235 cm-1 for higher pH values. This could be associated with the destruction, at least partially, of the β-sheet structure. Bonding performance was measured in dry conditions and the wetting properties were analyzed by scanning electron microscopy. The bonding performance improves when the SPC is stabilized at pH 12 due to the protein unfolding, revealing a strong interaction between the secondary structure and the wood surface. As part of an ongoing project it was concluded that alkali modification is a suitable procedure to modify a protein suspension, improving application conditions and mechanical properties of bioadhesives of a semistructural type. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/41504 Bacigalupe, Alejandro; Poliszuk, Andrea K.; Eisenberg, Patricia; Escobar, Mariano Martin; Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension; Elsevier; International Journal Of Adhesion And Adhesives; 62; 6-2015; 1-6 0143-7496 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/41504 |
identifier_str_mv |
Bacigalupe, Alejandro; Poliszuk, Andrea K.; Eisenberg, Patricia; Escobar, Mariano Martin; Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension; Elsevier; International Journal Of Adhesion And Adhesives; 62; 6-2015; 1-6 0143-7496 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijadhadh.2015.06.004 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0143749615000834 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613176212062208 |
score |
13.070432 |