Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/30030
DC FieldValueLanguage
dc.contributor.authorLourenço, A. F.-
dc.contributor.authorGamelas, J. A. F.-
dc.contributor.authorFerreira, P. J.-
dc.date.accessioned2015-11-26T18:36:21Z-
dc.date.available2015-11-26T18:36:21Z-
dc.date.issued2015-
dc.identifier.citationLOURENÇO, A.F.; GAMELAS, J.A.F.; FERREIRA, P.J. - Precipitated calcium carbonate modified by the layer-by-layer deposition method : its potential as papermaking filler. " Chemical Engineering Research and Design". In Press, Accepted Manuscript. Available online 23 October 2015. Disponível na WWW em: <http://hdl.handle.net/10316/30030>.por
dc.identifier.issn1744-3563-
dc.identifier.urihttp://hdl.handle.net/10316/30030-
dc.description.abstractThe surface modification of papermaking fillers with compounds that promote a better bonding with the cellulosic fibres is nowadays one of the strategies used to increase the filler content in paper without sacrificing the mechanical properties. In this study precipitated calcium carbonate (PCC) was surface coated with poly(diallyldimethylammonium) using the layer-by-layer deposition method with alginate as an intermediate bonding polyelectrolyte. The deposition of small amounts of both polyelectrolytes at the surface of PCC was confirmed by different techniques, namely by zeta potential measurements and X-ray photoelectron spectroscopy. The filler particles coated with two layers (one layer of each polyelectrolyte) and with six layers (three alternating layers of each anionic and cationic polyelectrolyte) were used in laboratory papermaking tests. It was observed that the handsheets mechanical resistances were better with the six-layer coated PCC than with the reference PCC whereas the optical properties were not significantly affected. It is therefore possible to increase the filler content in paper using a new PCC-based filler obtained by a cheap and simple modification method.por
dc.language.isoengpor
dc.publisherElsevierpor
dc.rightsopenAccesspor
dc.subjectSodium alginatepor
dc.subjectPoly(diallyldimethylammonium chloride)por
dc.subjectPrecipitated calcium carbonatepor
dc.subjectPapermakingpor
dc.subjectPaper strengthpor
dc.titlePrecipitated calcium carbonate modified by the layer-by-layer deposition method - its potential as papermaking fillerpor
dc.typearticlepor
degois.publication.titleChemical Engineering Research and Designpor
dc.relation.publisherversiondoi:10.1016/j.cherd.2015.10.026por
dc.peerreviewedYespor
dc.identifier.doi10.1016/j.cherd.2015.10.026-
item.fulltextCom Texto completo-
item.languageiso639-1en-
item.grantfulltextopen-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.researchunitCIEPQPF – Chemical Process Engineering and Forest Products Research Centre-
crisitem.author.researchunitCIEPQPF – Chemical Process Engineering and Forest Products Research Centre-
crisitem.author.researchunitCIEPQPF – Chemical Process Engineering and Forest Products Research Centre-
crisitem.author.orcid0000-0002-2860-9833-
crisitem.author.orcid0000-0002-1474-767X-
crisitem.author.orcid0000-0002-4503-6811-
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais
Files in This Item:
File Description SizeFormat
Precipitated calcium carbonate modified.pdf727.27 kBAdobe PDFView/Open
Show simple item record

WEB OF SCIENCETM
Citations

7
checked on Oct 2, 2021

Page view(s) 50

497
checked on Oct 8, 2021

Download(s) 50

649
checked on Oct 8, 2021

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.