Effect of Acrylate Copolymer on the Properties of Nano-sized Y-TZP Suspension

Abstract

Abstract: An acrylic acid/acrylate ester copolymer was employed as a dispersant for Y-TZPaqueous suspensions. The adsorption of the copolymer on Y-TZPpowder was characterized by using the COD(chemical oxygen demand) method. The addition of this dispersant caused a dramatic increase of the ζ potential in alkaline region and broadened the stable pHregion. SEMand effective diameter analysis showed that the copolymer pronouncedly improved the stability of the suspension. The force-distance curve was measured by using the colloidal probe AFMmethod. The stabilizing mechanism of the dispersant was also discussed.

Key words: YTZP, Copolymer, Suspension, Adsorption, AFM

CLC Number:

O648

TrendMD:

LIU Yang-Qiao, GAO Lian, SUN Jing, GUO Jing-Kun . Effect of Acrylate Copolymer on the Properties of Nano-sized Y-TZP Suspension[J]. Chem. J. Chinese Universities, 2001, 22(10): 1738.

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Effect of Acrylate Copolymer on the Properties of Nano-sized Y-TZP Suspension

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