Effect of dispersants on surface chemical properties of nano-zirconia suspensions
Source abstract
Abstract
Surface charge and particle dispersion of zirconia in aqueous suspension with addition of different dispersants, such as ammonium polymethacrylic acid (Darvan C), polyethylene imine (PEI) and diammonium citrate (DAC) were investigated by measuring its zeta potential and particle size. It was found that the zero point of charges (zpc) of 3Y-TZP powder was determined to be pH = 6, surface charge of zirconia powder changed significantly and zpc shifted under different dispersion conditions. Zirconia particle was in monodispersed state far from zpc, while in a certain degree of agglomeration in the vicinity of zpc. The study illustrates how zeta potential and effective particle size can be utilized in the investigation and optimization of the properties of ceramic suspensions.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrostatics and Colloid Interactions · Material Dynamics and Properties · Electrophoretic Deposition in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (13)
Show source-provided references
1. Powder processing science and technology for increased reliability10.1111/j.1151-2916.1989.tb05945.x ↗
2. E. Carlstrom, Surface and colloid chemistry in ceramics: an overview, in: R.J. Pugh, L. Bergstrom (Eds.), Surface and Colloid Chemistry in Advanced Ceramic Processing, Marcel Dekker, New York, 1994, pp. 1–28.
3. New method for efficient colloidal particle packing via modulation of repulsive lubricating hydratin forces10.1021/la00097a023 ↗
4. Surface forces and their action in ceramic materials10.1111/j.1151-2916.1990.tb05168.x ↗
5. Stability of aqueous α-Al2O3 suspensions with poly(methacrylic acid) polyelectrolytes10.1111/j.1151-2916.1988.tb05855.x ↗
6. Processing of highly concentrated aqueous α-alumina suspension stabilized with polyeletrolytes10.1111/j.1151-2916.1988.tb05792.x ↗
7. Electroacoustic and rheological properties of aqueous Ce-ZrO2 (Ce-TZP) suspensions10.1016/S0955-2219(96)00097-0 ↗
8. Infrared spectral investigatin of polyacrylate adsorption on alumina10.1007/BF01139166 ↗
9. Electrokinetic behavior and dispersion characteristics of ceramic powders with cationic and anionic polyelectrolytes10.1007/BF02757568 ↗
10. Dispersion of ZrO2 particles in aqueous suspensions by ammonium polyacrylate10.1007/BF01148770 ↗
11. R.J. Pugh, Dispersion and stability of ceramic powders in liquids, in: R.J. Pugh, L. Bergstrom (Eds.), Surface and Colloid Chemistry in Advanced Ceramic Processing, Marcel Dekker, New York, 1994, pp. 127–192.
12. Processing of aqueous α-Al2O3, α-SiO2, α-SiC suspensions with polyelectrolytes10.1016/S0955-2219(97)00010-1 ↗
13. Influence of the dispersant structure on properties of electrostatically stabilized aqueous alumina suspension10.1016/S0955-2219(96)00151-3 ↗