Pigment dispersion in a water based paint using amphoteric acrylic resins
作者:
Toshikatsu Kobayashi,
Hiroyuki Kageyama,
Shouji Ikeda,
期刊:
Journal of Rheology
(AIP Available online 1994)
卷期:
Volume 38,
issue 3
页码: 746-747
ISSN:0148-6055
年代: 1994
DOI:10.1122/1.550485
出版商: The Society of Rheology
关键词: PIGMENTS;PAINTS;RESINS;ACRYLATES;ELECTROSTATICS;DISTRIBUTION
数据来源: AIP
摘要:
Pigment dispersion in acid‐neutralized water soluble acrylic resins which have both acidic and basic functional groups was studied. The dispersibility was evaluated by the gloss and the yield value of the pastes. As for the dispersion of a positively charged pigment, an excellent dispersibility of the pigment was obtained by the resin adsorption through electrostatic interaction between positive charge of the pigment and negative charge of the resins when the acid strength of the resin was higher than that of the neutralizing acid. On the other hand, when the acid strength of the neutralizing acid was higher or a negatively charged pigment was used, no effect on the introduction of the acidic functional group to the resins was observed.
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