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Interactions in coating colours induced by a thermally active cellulosic polymer
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
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1999 (English)In: Journal of Pulp and Paper Science (JPPS), ISSN 0826-6220, Vol. 25, 229-234 p.Article in journal (Refereed)
Abstract [en]

A thermally active polymer, ethyl hydroxyethyl cellulose (EHEC), was evaluated with respect to its ability to generate temperature-induced interactions between components in coating colors. At low temperatures the polymer is water soluble, providing a good flow behavior to the color. As the temperature is raised a phase separation of the polymer takes place, inducing an interaction between the components in the color. Rheological measurements showed that using EHEC as thickener resulted in a significant temperature-induced viscosity increase of the coating color. The increase in viscosity was found to be a result of interactions taking place between the three-component system consisting of EHEC, latex and pigment. The increase in viscosity with increasing temperature was further shown to correlate with the styrene/butadiene ratio in the latex. It was also found that a higher amount of EHEC was adsorbed on English clay than on ground calcium carbonate. This affected the degree of interaction within the three-component system EHEC-latex-pigment, in that the increase in viscosity with temperature was lower when English clay was used. However, when delaminated US clay was used, a strong temperature effect was detected.

Place, publisher, year, edition, pages
1999. Vol. 25, 229-234 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26963OAI: oai:DiVA.org:ri-26963DiVA: diva2:1053966
Note
A1352Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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