Publicação
Surface properties of extracts from cork black condensate
| Resumo: | The insulation corkboard production generates black condensate (BC), a paste-like solid waste. It is hydrophobic and has the potential to be used as protective coating. To evaluate this potential, coatings were prepared from BC extracts and their surface behavior was evaluated by contact angle (CA) measurements. The CA dynamics were recorded as a function of time; advancing CAs were also registered; the approaches were applied according to Fowkes, Owens- Wendt-Rabel-Kaelble (OWRK), and Van Oss to determine the surface energy (SE) for each coating. Depending on the liquid probe, three phenomena were observed: water evaporation, diiodomethane diffusion into the coating, and rearrangement of the chemical groups on the coating surface, when glycerol was dropped onto the surface. Based on the results from the CA dynamics, the applicability of the coatings against hydrophobic environments was limited owing to its affinity to apolar compounds. The results show that the coating prepared by the toluene BC extract was the best coating. The key data were: water CA of 99.38, total SE (between 37.4 mN m-1 and 40.1 mN m-1), SE polar component (0.1 mN m-1), and the acidic and basic characters were negligible. It can be concluded that the BC extracts have potential for coatings. |
|---|---|
| Autores principais: | Pires, R. A. |
| Outros Autores: | Mano, J. F.; Reis, R. L. |
| Assunto: | Black condensate Coatings Contact angle Cork Surface energy |
| Ano: | 2010 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1866877060243259392 |
|---|---|
| author | Pires, R. A. |
| author2 | Mano, J. F. Reis, R. L. |
| author2_role | author author |
| author_facet | Pires, R. A. Mano, J. F. Reis, R. L. |
| author_role | author |
| contributor_name_str_mv | Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Pires, R. A.\"},{\"Person.name\":\"Mano, J. F.\"},{\"Person.name\":\"Reis, R. L.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Pires, R. A. Mano, J. F. Reis, R. L. |
| datacite.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2012-10-30T18:43:46Z |
| datacite.date.embargoed.fl_str_mv | 2012-10-30T18:43:46Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Black condensate Coatings Contact angle Cork Surface energy |
| datacite.titles.title.fl_str_mv | Surface properties of extracts from cork black condensate |
| dc.contributor.none.fl_str_mv | Universidade do Minho |
| dc.creator.none.fl_str_mv | Pires, R. A. Mano, J. F. Reis, R. L. |
| dc.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2012-10-30T18:43:46Z |
| dc.date.embargoed.fl_str_mv | 2012-10-30T18:43:46Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/20619 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Walter de Gruyter GmbH |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Black condensate Coatings Contact angle Cork Surface energy |
| dc.title.fl_str_mv | Surface properties of extracts from cork black condensate |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The insulation corkboard production generates black condensate (BC), a paste-like solid waste. It is hydrophobic and has the potential to be used as protective coating. To evaluate this potential, coatings were prepared from BC extracts and their surface behavior was evaluated by contact angle (CA) measurements. The CA dynamics were recorded as a function of time; advancing CAs were also registered; the approaches were applied according to Fowkes, Owens- Wendt-Rabel-Kaelble (OWRK), and Van Oss to determine the surface energy (SE) for each coating. Depending on the liquid probe, three phenomena were observed: water evaporation, diiodomethane diffusion into the coating, and rearrangement of the chemical groups on the coating surface, when glycerol was dropped onto the surface. Based on the results from the CA dynamics, the applicability of the coatings against hydrophobic environments was limited owing to its affinity to apolar compounds. The results show that the coating prepared by the toluene BC extract was the best coating. The key data were: water CA of 99.38, total SE (between 37.4 mN m-1 and 40.1 mN m-1), SE polar component (0.1 mN m-1), and the acidic and basic characters were negligible. It can be concluded that the BC extracts have potential for coatings. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://prod-dspace.uminho.pt/bitstreams/fe31bd6e-9b99-412c-8870-cace618ff526/download |
| id | rum_c87edbc069de7ae0e7c8bfb6bf1f3108 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/20619 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/20619 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Pires, R. A. Mano, J. F. Reis, R. L. |
| publishDate | 2010 |
| publisher.none.fl_str_mv | Walter de Gruyter GmbH |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engWalter de Gruyter GmbHporThe insulation corkboard production generates black condensate (BC), a paste-like solid waste. It is hydrophobic and has the potential to be used as protective coating. To evaluate this potential, coatings were prepared from BC extracts and their surface behavior was evaluated by contact angle (CA) measurements. The CA dynamics were recorded as a function of time; advancing CAs were also registered; the approaches were applied according to Fowkes, Owens- Wendt-Rabel-Kaelble (OWRK), and Van Oss to determine the surface energy (SE) for each coating. Depending on the liquid probe, three phenomena were observed: water evaporation, diiodomethane diffusion into the coating, and rearrangement of the chemical groups on the coating surface, when glycerol was dropped onto the surface. Based on the results from the CA dynamics, the applicability of the coatings against hydrophobic environments was limited owing to its affinity to apolar compounds. The results show that the coating prepared by the toluene BC extract was the best coating. The key data were: water CA of 99.38, total SE (between 37.4 mN m-1 and 40.1 mN m-1), SE polar component (0.1 mN m-1), and the acidic and basic characters were negligible. It can be concluded that the BC extracts have potential for coatings.application/pdfporSurface properties of extracts from cork black condensatePires, R. A.Mano, J. F.Reis, R. L.HostingInstitutionOrganizationalUniversidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf0018-3830DOIIsPartOf10.1515/HF.2010.0322012-10-30T18:43:46Z20102010-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/20619http://purl.org/coar/access_right/c_abf2open accessBlack condensateCoatingsContact angleCorkSurface energy153720 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://prod-dspace.uminho.pt/bitstreams/fe31bd6e-9b99-412c-8870-cace618ff526/download |
| spellingShingle | Surface properties of extracts from cork black condensate Pires, R. A. Black condensate Coatings Contact angle Cork Surface energy |
| status | SINGLETON |
| subject.fl_str_mv | Black condensate Coatings Contact angle Cork Surface energy |
| title | Surface properties of extracts from cork black condensate |
| title_full | Surface properties of extracts from cork black condensate |
| title_fullStr | Surface properties of extracts from cork black condensate |
| title_full_unstemmed | Surface properties of extracts from cork black condensate |
| title_short | Surface properties of extracts from cork black condensate |
| title_sort | Surface properties of extracts from cork black condensate |
| topic | Black condensate Coatings Contact angle Cork Surface energy |
| topic_facet | Black condensate Coatings Contact angle Cork Surface energy |
| url | https://hdl.handle.net/1822/20619 |
| visible | 1 |