Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/15583
DC Field | Value | Language |
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dc.contributor.author | Area, M.C. | - |
dc.contributor.author | Carvalho, M.G.V.S. | - |
dc.contributor.author | Ferreira, Paulo J. | - |
dc.contributor.author | Felissia, F.E. | - |
dc.contributor.author | Barboza, O.M. | - |
dc.contributor.author | Bengoechea, D.I. | - |
dc.date.accessioned | 2011-07-27T15:25:59Z | - |
dc.date.issued | 2010 | - |
dc.identifier.issn | 0960-8524 | - |
dc.identifier.uri | https://hdl.handle.net/10316/15583 | - |
dc.description.abstract | The influence of different addition points of a chelating agent and a counter-ion exchange on the properties of Eucalyptus grandis unbleached kraft pulps is studied. Seven pulps were considered: two laboratory kraft pulps with or without the inclusion of the chelant DTPMPA (diethylene triamine penta (methylene phosphonic acid)), a mill kraft pulp and four mill pulps after Ca+2 or Na+ counter-ion exchange followed, or not, by washing with DTPMPA addition. The laboratory pulps required lower beating energy than the industrial pulps for achieving 30 SR, and the corresponding handsheets also showed better strength and optical properties, as well as a more homogeneous and smooth surface. The counterion exchange decreases the mechanical resistances and increases brightness. However, the effects of Ca+2 are deeper than those of Na+. DTPMPA added to pulping causes a decrease in calcium content whereas as a washing additive does not have a relevant impact on the mechanical and optical properties. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier | por |
dc.rights | closedAccess | por |
dc.subject | Eucalyptus grandis | por |
dc.subject | Kraft pulping | por |
dc.subject | Chelating agents | por |
dc.subject | Counter-ion exchange | por |
dc.subject | Papermaking properties | por |
dc.title | The influence of pulping and washing conditions on the properties of Eucalyptus | por |
dc.type | article | por |
degois.publication.firstPage | 1877 | por |
degois.publication.lastPage | 1884 | por |
degois.publication.issue | 6 | por |
degois.publication.title | Bioresource Technology | por |
dc.date.embargoEndDate | 2017-07-25T15:25:59Z | - |
dc.relation.publisherversion | doi:10.1016/j.biortech.2009.10.004 | por |
dc.peerreviewed | Yes | por |
dc.identifier.doi | 10.1016/j.biortech.2009.10.004 | - |
degois.publication.volume | 101 | por |
dc.date.embargo | 2017-07-25 | * |
item.fulltext | Com Texto completo | - |
item.grantfulltext | reserved | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.researchunit | CIEPQPF – Chemical Process Engineering and Forest Products Research Centre | - |
crisitem.author.researchunit | CIEPQPF – Chemical Process Engineering and Forest Products Research Centre | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.orcid | 0000-0002-6636-3133 | - |
crisitem.author.orcid | 0000-0002-4503-6811 | - |
Appears in Collections: | FCTUC Eng.Química - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | Login |
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PJF - BioResources Technology - 2010 (2).pdf | 1.24 MB | Adobe PDF | Request a copy |
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