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The influence of colloids on the particle size and stability of O/W emulsions in the presence of nonionic surfactants

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dc.title The influence of colloids on the particle size and stability of O/W emulsions in the presence of nonionic surfactants en
dc.contributor.author Ševčíková, Petra
dc.contributor.author Kašpárková, Věra
dc.contributor.author Vltavská, Pavlína
dc.contributor.author Krejčí, Jiří
dc.relation.ispartof NANOCON 2012
dc.identifier.isbn 978-80-87294-32-1
dc.identifier.isbn 978-80-87294-35-2
dc.date.issued 2012
dc.citation.spage 382
dc.citation.epage 387
dc.event.title 4th International Conference on NANOCON
dc.event.location Brno
utb.event.state-en Czech Republic
utb.event.state-cs Česká republika
dc.event.sdate 2012-10-23
dc.event.edate 2012-10-25
dc.type conferenceObject
dc.language.iso en
dc.publisher TANGER Ltd.
dc.relation.uri http://konsys5.tanger.cz/files/proceedings/04/reports/595.pdf
dc.subject Emulsion en
dc.subject Gelatin en
dc.subject Hydrophile-lipophile balance en
dc.subject Stability en
dc.subject Surfactant en
dc.description.abstract The effect of the presence of colloids on formation, stability and particle size of n-undecane in water nanoemulsions prepared by the Emulsion Inversion Point (EIP) method using nonionic surfactants (Igepals) was studied. The influence of oil-to-water ratio, the HLB value and concentration of the surfactant on their physico-chemical characteristics was also investigated. The stability of emulsions was assessed from changes in the particle size and the particle size distribution as well as through visual assessment of their appearance. The results obtained show that the anticipated positive effect of the colloids on emulsion stability was not confirmed. Phase separation of these systems usually occurred soon after preparation or during a few days of their storage. The particle size of emulsions prepared in the presence of colloids was mostly bigger in comparison with emulsions where colloids were absent. Nevertheless, nanoemulsions with the particle size smaller than 200 nm were also obtained. The best long-term stability was observed in emulsions prepared at the HLB value of 11.5, oil content of 20 and 30 wt. % stored at 4 degrees C. en
utb.faculty Faculty of Technology
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1003745
utb.identifier.rivid RIV/70883521:28110/12:43869077!RIV13-MSM-28110___
utb.identifier.rivid RIV/70883521:28610/12:43869077!RIV13-MSM-28610___
utb.identifier.obdid 43869299
utb.identifier.scopus 2-s2.0-84923697948
utb.identifier.wok 000333697100069
utb.source d-wok
dc.date.accessioned 2014-06-05T20:22:59Z
dc.date.available 2014-06-05T20:22:59Z
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Ševčíková, Petra
utb.contributor.internalauthor Kašpárková, Věra
utb.contributor.internalauthor Vltavská, Pavlína
utb.contributor.internalauthor Krejčí, Jiří
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