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| rdf:type
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| Description
| - One of the most important and sometimes even dangerous steps of the conservation intervention is removal of undesirable substances - such as corrosion products, sedimentary impurities or previously used preserving or consolidating agents from the historical objects. It mainly concerns polymer substances. These substances are hardly removable. Some of them are insoluble after crosslinking etc. Organic solvents are commonly used for these purposes, but they can cause risk for conservator health and environment. New dispersion systems - micro-emulsions of organic solvents in water in the presence of suitable surfactant - seem to be very useful agents for this purpose. These dispersion systems are highly recommended because of a low content of organic solvents. The poster discusses cleaning efficiency of such systems for wax and oil from different substrates. Two types of waxes (paraffin, beeswax) and two types of oils (standard and polymerized linseed oil) were tested. The tested micro-emulsions were consisted of water, surfactant (non-ionic or anionic), co-surfactant and organic solvents. Different solvents for wax and oil were chosen. The efficiency of micro-emulsions with different amount of toluene for removal of waxes was measured. Two solvents (ethanolamine and tetraethylammoniumhydroxide) for removal of oils were tested. Micro-emulsion was applied on the sample surface in Arbocel (natural cellulose fiber) matrix. The removal of polymeric film was observed after 15, 30, 45, 60 and 120 min. The efficiency of tested micro-emulsions was monitored by means of gravimetry and FTIR spectroscopy. From the gained results it is possible to determine the positive influence of tested micro-emulsion on wax and oil removal from surfaces. Using micro-emulsion seems to be a good way how to remove degraded polymers from the surface of historical objects.
- One of the most important and sometimes even dangerous steps of the conservation intervention is removal of undesirable substances - such as corrosion products, sedimentary impurities or previously used preserving or consolidating agents from the historical objects. It mainly concerns polymer substances. These substances are hardly removable. Some of them are insoluble after crosslinking etc. Organic solvents are commonly used for these purposes, but they can cause risk for conservator health and environment. New dispersion systems - micro-emulsions of organic solvents in water in the presence of suitable surfactant - seem to be very useful agents for this purpose. These dispersion systems are highly recommended because of a low content of organic solvents. The poster discusses cleaning efficiency of such systems for wax and oil from different substrates. Two types of waxes (paraffin, beeswax) and two types of oils (standard and polymerized linseed oil) were tested. The tested micro-emulsions were consisted of water, surfactant (non-ionic or anionic), co-surfactant and organic solvents. Different solvents for wax and oil were chosen. The efficiency of micro-emulsions with different amount of toluene for removal of waxes was measured. Two solvents (ethanolamine and tetraethylammoniumhydroxide) for removal of oils were tested. Micro-emulsion was applied on the sample surface in Arbocel (natural cellulose fiber) matrix. The removal of polymeric film was observed after 15, 30, 45, 60 and 120 min. The efficiency of tested micro-emulsions was monitored by means of gravimetry and FTIR spectroscopy. From the gained results it is possible to determine the positive influence of tested micro-emulsion on wax and oil removal from surfaces. Using micro-emulsion seems to be a good way how to remove degraded polymers from the surface of historical objects. (en)
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| Title
| - Micro-emulsions for Removal of Waxes and Oils from Artefact Surfaces
- Micro-emulsions for Removal of Waxes and Oils from Artefact Surfaces (en)
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| skos:prefLabel
| - Micro-emulsions for Removal of Waxes and Oils from Artefact Surfaces
- Micro-emulsions for Removal of Waxes and Oils from Artefact Surfaces (en)
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| skos:notation
| - RIV/60461373:22310/14:43898735!RIV15-MK0-22310___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/14:43898735
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - cleaning of artefact; Micro-emulsion (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Kotlík, Petr
- Rathouský, Jiří
- Škrdlantová, Markéta
- Drábková, Klára
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| http://localhost/t...ganizacniJednotka
| |
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