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Mechanical stability of alkyd emulsions. Part 2: Influence of alkyd properties
YKI – Ytkemiska institutet.
1994 (English)In: JCT: Journal of Coatings Technology, ISSN 0361-8773, Vol. 66, no 838, 37-41 p.Article in journal (Refereed)
Abstract [en]

The development of water borne alkyd paints based on alkyd emulsions has been stimulated by more stringent health and environment regulations. In addition, alkyd paints may have better performance in some applications compared to other types of water -borne paints such as latex dispersions. One problem that needs to be overcome is the limited colloidal stability of alkyd emulsions. It is important that the emulsions are not destabilized when exposed to shear forces such as those produced by pumps used by the paint industry. An alkyd emulsion consist of alkyd oil droplets dispersed in water and stabilized by a surface active agent (emulsifier). Part 1 of this serie describes the influence of emulsion droplet size and type or concentration of the emulsifier on the shear stability. The present study is an additional investigation of the influence of the alkyd properties on shear stability. Increasing the acid value of the alkyd increases the stability of emulsions stabilized with nonionic emulsifiers. Emulsions made using alkyds with shorter oil lengths and higher viscosities were less stable to shear compared to alkyds with higher oil lengths and lower viscosities.

Place, publisher, year, edition, pages
1994. Vol. 66, no 838, 37-41 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26661OAI: oai:DiVA.org:ri-26661DiVA: diva2:1053664
Note
A902Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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