Abstract
The influence of water-soluble conventional hydroxyethylcellulose (HEC) and hydrophobically-modified hydroxyethylcellulose (HMHEC) on several rheological properties in latex paint is reviewed. The influence of conventional HEC molecular weight on paint flow under both high and low shear rates is discussed. Polymer solution rheology is shown to be a predictor of coating rheology in the high shear rate region but is not necessarily indicative of flow properties at low shear rates. At low shear rates, the influence of the dispersed phase components becomes significant. The use of HMHEC polymers as thickeners introduces the distinct possibility of polymer adsorption on the dispersed phase components of the coating. Partitioning of the HMHEC polymer between the surface of the dispersed phase components and the continuous (aqueous) phase allows achievement of a balance of desirable coating flow properties which cannot always be attained using a single conventional thickener or a blend of conventional water-soluble polymers. New developments in cellulosic thickener technology are described briefly.
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© 1991 Springer Science+Business Media New York
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Brown, R.G., Vanderslice, C.W., Young, TS., Fu, E. (1991). The Effect of Conventional and Hydrophobically-Modified Cellulosic Thickeners on the Rheology of Latex Paints. In: Sharma, M.K. (eds) Surface Phenomena and Additives in Water-Based Coatings and Printing Technology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2361-5_2
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DOI: https://doi.org/10.1007/978-1-4899-2361-5_2
Publisher Name: Springer, Boston, MA
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