Abstract
Wetting by PVA aqueous solution of sapphire and fused quartz was studied by measuring the contact angle of a sessile drop placed on them. At a given temperature, the contact angle increased with increasing concentration of solution up to 2% and became rather constant for further increase in concentration. The contact angle also increased with increasing temperature. At temperatures over 70° C, the contact angle for sapphire exceeded 90° for PVA aqueous solutions of concentration over 2%. The effects of temperature and concentration on wetting for fused quartz were similar to those found for sapphire. These results are discussed in terms of bulk thermodynamics.
Similar content being viewed by others
References
D. W. Richerson, in “Modern Ceramic Engineering” (Dekker, New York, 1982) p. 178.
G. Y. Onoda Jr,J. Amer. Ceram. Soc. 59 (1976) 236.
K. Hajmrle andRoch Angers,Commun. Amer. Ceram. Soc. 60 (1977) 464.
M. Trontelj andD. Kolar,J. Amer. Ceram. Soc. 61 (1978) 204.
M. G. Nicholas, T. M. Valentine andM. J. Waite,J. Mater. Sci. 15 (1980) 2197.
X. A. Thorsen, H. Fordsmand andP. L. Praestgaard,Weld. J. (Miami) 63 (1984) 308.
S. Umevayashi, K. Kishi, E. Tani, K. Kobayashi, H. Ito andR. Nakamura,Yogyo-Kyokai-shi 93 (1985) 51.
M. Ueki, M. Naka andI. Okamoto,J. Mater. Sci. Lett. 5 (1986) 1261.
P. Nikolopoulos andD. Sotiropoulou,ibid. 6 (1987) 1429.
R. A. Swalin, in “Thermodynamics of Solids”, 2nd edn, (Wiley, New York, 1972) Ch. 5.
I. Barin, O. Knacke andO. Kubaschewski, “Thermochemical properties of inorganic substances” (Springer, New York, 1977) p. 32, p. 35 and p. 322.
K. Toyosima, in “Polyvinyl Alcohol”, edited by C. A. Finch (Wiley, New York, 1973) p. 17.
R. Naito, J. Ukida andT. Kominami,Kobunshi Kagaku 14 (1957) 117.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ando, K., Kato, Z., Uchida, N. et al. Wetting of aqueous solutions of organic binder (PVA) on sapphire and fused quartz. J Mater Sci 24, 4048–4051 (1989). https://doi.org/10.1007/BF01168972
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01168972