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Switchable hydrophobic-hydrophilic layer obtained onto porous alumina by plasma-enhanced fluorination
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | TRESSAUD, Alain | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | LABRUGÈRE, Christine | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DURAND, Etienne | |
| hal.structure.identifier | Agfa-Gevaert | |
| dc.contributor.author | BRIGOULEIX, Catherine | |
| hal.structure.identifier | Agfa-Gevaert | |
| dc.contributor.author | ANDRIESSEN, H. | |
| dc.date.issued | 2009 | |
| dc.description.abstractEn | Conventional lithographic printing processes using porous alumina for offset applications generally use “wet” routes. Recently “dry” processes have been developed which are based on a heat-induced hydrophilic/oleophilic conversion of one or more layers of the coating so that a stronger affinity to-wards ink or water fountain is created at the exposed areas with respect to the surface of the unex-posed coating. Treatments involving rf plasma-enhanced fluorination (PEF) constitute exceptional tools for modifying the surface properties of materials. Many advantages of these techniques can be indeed outlined, when compared to more conventional methods: room-temperature reactions, chemical modi-fications limited to surface only without changing the bulk properties, possible non-equilibrium reac-tions. The influence of PEF treatments on porous alumina layer used in printing plates has been tested with various fluorinated gases (CF<sub>4</sub>, C<sub>3</sub>F<sub>8</sub> and C<sub>4</sub>F<sub>8</sub>) and characterized by XPS. The hydrophobic prop-erties of the fluorinated layer have been deduced from contact angle measurements. Using C<sub>4</sub>F<sub>8</sub> rf-PEF treatment, the outmost surface of the hydrophilic alumina substrate used for lithographic printing is hydrophobized, or in other words, the hydrophilic substrate is converted into a support with hydro-phobic properties. Once being hydrophobized, the surface layer may be rendered hydrophilic using a heat pulse, thus giving rise to switchable hydrophobic-hydrophilic properties of the material. | |
| dc.language.iso | en | |
| dc.subject.en | Porous alumina | |
| dc.subject.en | rf-plasma fluorination | |
| dc.subject.en | Offset applications | |
| dc.subject.en | Hydrophobic-hydrophilic | |
| dc.subject.en | Switchable layer | |
| dc.subject.en | XPS | |
| dc.subject.en | Contact angle | |
| dc.title.en | Switchable hydrophobic-hydrophilic layer obtained onto porous alumina by plasma-enhanced fluorination | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1007/s11431-008-0328-x | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Science in China Series E | |
| bordeaux.page | 104-110 | |
| bordeaux.volume | 52 | |
| bordeaux.issue | 1 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00359231 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00359231v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science%20in%20China%20Series%20E&rft.date=2009&rft.volume=52&rft.issue=1&rft.spage=104-110&rft.epage=104-110&rft.au=TRESSAUD,%20Alain&LABRUG%C3%88RE,%20Christine&DURAND,%20Etienne&BRIGOULEIX,%20Catherine&ANDRIESSEN,%20H.&rft.genre=article |
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