Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/13398
DC FieldValueLanguage
dc.contributor.authorMoutinho, Isabel-
dc.contributor.authorFigueiredo, Margarida-
dc.contributor.authorFerreira, Paulo-
dc.date.accessioned2010-07-05T08:33:32Z-
dc.date.available2010-07-05T08:33:32Z-
dc.date.issued2007-06-
dc.identifier.citationTappi Journal. 6:6 (2007) 26-32en_US
dc.identifier.issn0734-1415-
dc.identifier.urihttp://hdl.handle.net/10316/13398-
dc.description.abstractContact angle is one of the most useful tools to easily assess the surface energy of paper sheets. However, the results obtained should be treated with some caution, since these measurements are significantly influenced by the properties of the liquids used and of the paper surface. Our study compares the values of the contact angle and of the surface energy of laboratory handsheets produced with demineralized water and with white water (collected from the paper mill). In addition, and to assess the influence of paper roughness on the contact angle measurements, some 3-D topographical parameters were computed by perfilometry. Complementary measurements were also performed with commercial paper samples. The results clearly demonstrate that the kind of water used in the sheet-making process has a more pronounced influence on the surface energy of the paper sheets than whether the paper sheets were made in a laboratory sheet former or in an industrial paper machine. Application: This study clarifies factors that have influence on the practical determination of the surface energy of paper sheets by contact angle measurements. The results show the influence of the water used in the sheet-making process on the surface energy of paper sheets and are specially useful for experiments carried out in the laboratory.en_US
dc.language.isoengen_US
dc.publisherTappi Pressen_US
dc.rightsopenAccessen_US
dc.titleEvaluating the surface energy of laboratory-made paper sheets by contact angle measurementsen_US
dc.typearticleen_US
degois.publication.firstPage26en_US
degois.publication.lastPage32en_US
degois.publication.issue6en_US
degois.publication.titleTappi Journalen_US
item.languageiso639-1en-
item.fulltextCom Texto completo-
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.orcid0000-0002-2868-8332-
crisitem.author.orcid0000-0002-4503-6811-
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais
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