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Stabilization of aqueous BaTiO3 suspensions with ammonium salt of poly(acrylic acid) at various pH values

Published online by Cambridge University Press:  31 January 2011

Jau-Ho Jean
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
Hong-Ren Wang
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
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Abstract

Ammonium salt of poly(acrylic acid) (PAA-NH4) has been used to stabilize aqueous BaTiO3 suspensions at various pH values. Adsorption of PAA-NH4 causes the zeta potential to become more negative, although this effect becomes less dramatic as the pH increases. The concentration of PAA-NH4 required to stabilize aqueous BaTiO3 suspensions decreases with increasing pH. The critical amount of PAA-NH4 as a function of pH is plotted in a stability map, as determined by adsorption, rheology, and sedimentation studies.

Type
Articles
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1.Jean, J-H. and Wang, H-R., J. Am. Ceram. Soc. (1998, in press).Google Scholar
2.Cesarano III, J., Aksay, I. A., and Blier, A., J. Am. Ceram. Soc. 71 (4), 250255 (1988).CrossRefGoogle Scholar
3.III, J. Cesarano and Aksay, I. A., J. Am. Ceram. Soc. 71 (12), 10621067 (1988).Google Scholar
4.Chen, Z. C., Ring, T. A., and Lemaitre, J., J. Am. Ceram. Soc. 75 (12), 32013208 (1992).CrossRefGoogle Scholar
5.Ushifusa, N. and Cima, M. J., J. Am. Ceram. Soc. 74 (10), 2443–1447 (1991).CrossRefGoogle Scholar
6.de Laat, A. W. M. and Derks, W. P. T., Colloids Surf. A 71, 147153 (1993).CrossRefGoogle Scholar
7.Anderson, D. A., Adair, J. H., Miller, D., Biggers, J. V., and Shrout, T. R., in Ceramic Transactions, Vol. 1, Ceramic Powder Science II, edited by Messing, G. L., Fuller, E. R., Jr., and Hausner, H. (American Ceramic Society, Westerville, OH, 1988), pp. 485492.Google Scholar
8. ibid, pp. 493500.Google Scholar
9.Langmuir, I., Science 88, 450455 (1938).CrossRefGoogle Scholar
10.Sato, T. and Ruch, R., Stabilization of Colloidal Dispersions by Polymer Adsorption (Marcel Dekker, New York, 1982), p. 16.Google Scholar
11.Adams, E. F., in High Temperature Oxides, Part IV: Refractory Glasses, Glass-ceramics, and Ceramics, edited by Margrave, J. L. (Academic Press, London, U.K., 1972), pp. 145184.Google Scholar
12.Sato, T. and Ruch, R., Stabilization of Colloidal Dispersions by Polymer Adsorption (Marcel Dekker, New York, 1982).Google Scholar