Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride)
- Autores
- Mocchiutti, Paulina; Galván, María Verónica; Inalbon, Maria Cristina; Zanuttini, Miguel Angel Mario
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Polyelectrolytes containing amine functional groups such as PAH (poly(allylamine hydrochloride)) can be useful, under certain conditions, for improving paper strength. In this work, the charge density of PAH was determined at different pH and ionic strengths; PAH adsorption onto the cellulosic fibers was characterized, and the effects of low PAH dosage on the papermaking properties were evaluated. It was found that the ionization of PAH is complete in acid media, but it is partial and depends on the ionic strength in neutral media. The adsorption isotherms of PAH on a recycled pulp from kraft liner allowed us to determine the amount needed to saturate the adsorption capacity of the fibers. For the three ionic strengths analyzed, the swelling of the fibers decreased when PAH was added in an amount corresponding to saturation (0.23% PAH on dried pulp). Nevertheless, the swelling was recovered when the amount of PAH was the double the saturation level (0.46% PAH on dried pulp). At these levels of addition, the papermaking properties were clearly improved, especially compressive strengths SCT (short compressive test) and CMT (concora medium test). The Page equation of tensile strength showed that PAH improved the shear bond strength, while the relative bonding area slightly decreased.
Fil: Mocchiutti, Paulina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Galván, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Inalbon, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Zanuttini, Miguel Angel Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina - Materia
-
ADSORPTION ISOTHERMS
Amine group-containing polymers
Charge density
Page equation
Recycling - 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:11336/74856
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
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Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride)Mocchiutti, PaulinaGalván, María VerónicaInalbon, Maria CristinaZanuttini, Miguel Angel MarioADSORPTION ISOTHERMSAmine group-containing polymersCharge densityPage equationRecyclinghttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Polyelectrolytes containing amine functional groups such as PAH (poly(allylamine hydrochloride)) can be useful, under certain conditions, for improving paper strength. In this work, the charge density of PAH was determined at different pH and ionic strengths; PAH adsorption onto the cellulosic fibers was characterized, and the effects of low PAH dosage on the papermaking properties were evaluated. It was found that the ionization of PAH is complete in acid media, but it is partial and depends on the ionic strength in neutral media. The adsorption isotherms of PAH on a recycled pulp from kraft liner allowed us to determine the amount needed to saturate the adsorption capacity of the fibers. For the three ionic strengths analyzed, the swelling of the fibers decreased when PAH was added in an amount corresponding to saturation (0.23% PAH on dried pulp). Nevertheless, the swelling was recovered when the amount of PAH was the double the saturation level (0.46% PAH on dried pulp). At these levels of addition, the papermaking properties were clearly improved, especially compressive strengths SCT (short compressive test) and CMT (concora medium test). The Page equation of tensile strength showed that PAH improved the shear bond strength, while the relative bonding area slightly decreased.Fil: Mocchiutti, Paulina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Galván, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaFil: Inalbon, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaFil: Zanuttini, Miguel Angel Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaNorth Carolina State University. Department of Forest Biomaterials2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74856Mocchiutti, Paulina; Galván, María Verónica; Inalbon, Maria Cristina; Zanuttini, Miguel Angel Mario; Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride); North Carolina State University. Department of Forest Biomaterials; Bioresources; 6; 1; 1-2011; 570-5831930-2126CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_06_1_0570_Mocciutti_GIZ_Paper_Prop_Recycled_UBKinfo: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:11336/74856instacron: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 09:37:20.409CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) |
title |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) |
spellingShingle |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) Mocchiutti, Paulina ADSORPTION ISOTHERMS Amine group-containing polymers Charge density Page equation Recycling |
title_short |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) |
title_full |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) |
title_fullStr |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) |
title_full_unstemmed |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) |
title_sort |
Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride) |
dc.creator.none.fl_str_mv |
Mocchiutti, Paulina Galván, María Verónica Inalbon, Maria Cristina Zanuttini, Miguel Angel Mario |
author |
Mocchiutti, Paulina |
author_facet |
Mocchiutti, Paulina Galván, María Verónica Inalbon, Maria Cristina Zanuttini, Miguel Angel Mario |
author_role |
author |
author2 |
Galván, María Verónica Inalbon, Maria Cristina Zanuttini, Miguel Angel Mario |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
ADSORPTION ISOTHERMS Amine group-containing polymers Charge density Page equation Recycling |
topic |
ADSORPTION ISOTHERMS Amine group-containing polymers Charge density Page equation Recycling |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Polyelectrolytes containing amine functional groups such as PAH (poly(allylamine hydrochloride)) can be useful, under certain conditions, for improving paper strength. In this work, the charge density of PAH was determined at different pH and ionic strengths; PAH adsorption onto the cellulosic fibers was characterized, and the effects of low PAH dosage on the papermaking properties were evaluated. It was found that the ionization of PAH is complete in acid media, but it is partial and depends on the ionic strength in neutral media. The adsorption isotherms of PAH on a recycled pulp from kraft liner allowed us to determine the amount needed to saturate the adsorption capacity of the fibers. For the three ionic strengths analyzed, the swelling of the fibers decreased when PAH was added in an amount corresponding to saturation (0.23% PAH on dried pulp). Nevertheless, the swelling was recovered when the amount of PAH was the double the saturation level (0.46% PAH on dried pulp). At these levels of addition, the papermaking properties were clearly improved, especially compressive strengths SCT (short compressive test) and CMT (concora medium test). The Page equation of tensile strength showed that PAH improved the shear bond strength, while the relative bonding area slightly decreased. Fil: Mocchiutti, Paulina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina Fil: Galván, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina Fil: Inalbon, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina Fil: Zanuttini, Miguel Angel Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina |
description |
Polyelectrolytes containing amine functional groups such as PAH (poly(allylamine hydrochloride)) can be useful, under certain conditions, for improving paper strength. In this work, the charge density of PAH was determined at different pH and ionic strengths; PAH adsorption onto the cellulosic fibers was characterized, and the effects of low PAH dosage on the papermaking properties were evaluated. It was found that the ionization of PAH is complete in acid media, but it is partial and depends on the ionic strength in neutral media. The adsorption isotherms of PAH on a recycled pulp from kraft liner allowed us to determine the amount needed to saturate the adsorption capacity of the fibers. For the three ionic strengths analyzed, the swelling of the fibers decreased when PAH was added in an amount corresponding to saturation (0.23% PAH on dried pulp). Nevertheless, the swelling was recovered when the amount of PAH was the double the saturation level (0.46% PAH on dried pulp). At these levels of addition, the papermaking properties were clearly improved, especially compressive strengths SCT (short compressive test) and CMT (concora medium test). The Page equation of tensile strength showed that PAH improved the shear bond strength, while the relative bonding area slightly decreased. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01 |
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/11336/74856 Mocchiutti, Paulina; Galván, María Verónica; Inalbon, Maria Cristina; Zanuttini, Miguel Angel Mario; Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride); North Carolina State University. Department of Forest Biomaterials; Bioresources; 6; 1; 1-2011; 570-583 1930-2126 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/74856 |
identifier_str_mv |
Mocchiutti, Paulina; Galván, María Verónica; Inalbon, Maria Cristina; Zanuttini, Miguel Angel Mario; Improvement of Paper Properties of Recycled Unbleached Softwood Kraft Pulps by Poly(Allylamine Hydrochloride); North Carolina State University. Department of Forest Biomaterials; Bioresources; 6; 1; 1-2011; 570-583 1930-2126 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_06_1_0570_Mocciutti_GIZ_Paper_Prop_Recycled_UBK |
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 |
North Carolina State University. Department of Forest Biomaterials |
publisher.none.fl_str_mv |
North Carolina State University. Department of Forest Biomaterials |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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score |
13.070432 |