Isotherm Adsorption of Acrylic Acid/Acrylate Ester Copolymers on Nanosized Y-TZP Powders

Abstract

Abstract: The adsorption of an acrylic copolymer on nanosized Y-TZP powder was characterized by the method of COD (chemical oxygen demand). The
adsorption density decreases with increasing pH and copolymer concentration. An increase in KNO₃ concentration causes a considerable increase in adsorption density in alkaline region, but has no effect on the adsorption density in acidic region. The
adsorption density in alkaline region increases profoundly in the presence of Ca²⁺ due to the complexation of Ca²⁺ with the
copolymer. FTIR results show the existence of chemical interaction between the metal ions on the powder surface and the carboxylic acid
groups of the copolymer.

Key words: Y-TZP, copolymer, adsorption, suspension

CLC Number:

O648

LIU Yang-Qiao,GAO Lian,GUO Jing-Kun. Isotherm Adsorption of Acrylic Acid/Acrylate Ester Copolymers on Nanosized Y-TZP Powders[J]. Journal of Inorganic Materials.

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Isotherm Adsorption of Acrylic Acid/Acrylate Ester Copolymers on Nanosized Y-TZP Powders

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