Mostrar el registro sencillo del ítem

dc.contributor.author
Galván, María Verónica  
dc.contributor.author
Mocchiutti, Paulina  
dc.contributor.author
Cornaglia, Laura Maria  
dc.contributor.author
Zanuttini, Miguel Angel Mario  
dc.date.available
2023-10-31T12:42:38Z  
dc.date.issued
2012-05  
dc.identifier.citation
Galván, María Verónica; Mocchiutti, Paulina; Cornaglia, Laura Maria; Zanuttini, Miguel Angel Mario; Dual-polyelectrolyte adsorption of poly(allylamine hydrochloride) and xylan onto recycled unbleached kraft pulps; North Carolina State University. Department of Wood and Paper Science; Bioresources; 7; 2; 5-2012; 2075-2089  
dc.identifier.issn
1930-2126  
dc.identifier.uri
http://hdl.handle.net/11336/216520  
dc.description.abstract
The effects of a double polyelectrolyte adsorption of poly(allylamine hydrochloride) (PAH) and xylan (Xyl) on a recycled unbleached softwood kraft pulp were studied. The kinetics of PAH adsorption on this pulp was analyzed by building adsorption isotherms and by estimating the surface nitrogen adsorbed through the X-ray photoelectron spectroscopy (XPS) technique. It was found that at pH 7.5, 0.01N NaCl, and short adsorption time, PAH is mainly adsorbed on the fiber surface. Adsorption isotherms of xylan on untreated and on previously PAH-treated pulps at different ionic strengths were built, and the effects of the amount of PAH on xylan adsorption were considered. It was found that when ionic strength was lower than 0.01N NaCl, a PAH pretreatment was necessary to achieve high levels of xylan adsorption at room temperature and short adsorption times. Nevertheless, when ionic strength was 0.1N NaCl, 0.3% xylan on pulp could be directly adsorbed on untreated pulp. Finally, it is shown that the dual-polyelectrolyte adsorption on this pulp is a feasible technique for improving paper tensile strength.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
North Carolina State University. Department of Wood and Paper Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
NATURAL  
dc.subject
POLYMERS  
dc.subject
LAYER-BY-LAYER  
dc.subject
ADSORPTION  
dc.subject.classification
Papel y Madera  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Dual-polyelectrolyte adsorption of poly(allylamine hydrochloride) and xylan onto recycled unbleached kraft pulps  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-04-26T10:53:16Z  
dc.journal.volume
7  
dc.journal.number
2  
dc.journal.pagination
2075-2089  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Raleigh  
dc.description.fil
Fil: Galván, María Verónica. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Mocchiutti, Paulina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Cornaglia, Laura Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina  
dc.description.fil
Fil: Zanuttini, Miguel Angel Mario. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
Bioresources  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://bioresources.cnr.ncsu.edu/resources/dual-polyelectrolyte-adsorption-of-polyallylamine-hydrochloride-and-xylan-onto-recycled-unbleached-kraft-pulps/