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Emulsification of alkyds for industrial coatings
YKI – Ytkemiska institutet.
1996 (English)In: JCT: Journal of Coatings Technology, ISSN 0361-8773, Vol. 68, 39-45 p.Article in journal (Refereed)
Abstract [en]

Alkyd emulsions have so far mostly been used in consumer paints. These are relatively easy to emulsify due to their low viscosity. Lately alkyd emulsions for industrial paint have gained increasing attention. Alkyd for industrial paints have a much higher viscosity than alkyds for consumer paints which requires other emulsification techniques. In this work an alkyd with 40 % oil length have been emulsified by the inversion technique. Inversion emulsification by adding water to an alkyd/surfactant mixture at constant temperature give emulsions with droplet sizes below 1pm at a concentration of 3 % on the alkyd phase. Small droplets are necessary for colloidal stability of the emulsion. The solubility of surfactant in the alkyd and the water phase determines at which water concentration the emulsion inverts. High molecular weight ethoxylated anionic surfactants are effective as emulsifiers. Using these surfactants the emulsification becomes less dependent on emulsification temperature than when nonionic surfactants are used.

Place, publisher, year, edition, pages
1996. Vol. 68, 39-45 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26657OAI: oai:DiVA.org:ri-26657DiVA: diva2:1053660
Note
A995Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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