Abstract
CaO formed by decomposing CaCO3 at 1450°C was ground in a vibrational mill, then the long-time ground sample was reheated at different temperatures. Inverse Gas Chromatography (IGC) was used to measure the variation of the sample's surface free energy under grinding and reheoting. It is concluded that the total surface free energy and the London dispersive component of the surface free energy increases with grinding, while the polar component, first increases with grinding, and then decreases, and finally disappears. When the long-time ground sample was reheated, its total surface free energy decreases, among which the London component decreases, but the polar component appears again.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
E Papiere and J B Donent. The Surface of Silicas Grafted with Alkyl Chains of Increasing Lengths, as Measured by Contact Angle Techniques.J. Colloid Interface Sci., 1981, 82:526
J Schultz, K Tsutsumi and J B Donnet. Surface Properties of High —Energy Solids. I. Determination of The Dispersive Component of the Surface Free Energy of Mica and its Energy of Adhesion to Water and n-alanes.J. Colloid Interface Sci., 1997, 59: 272
J W Whalm. Thermodynamic Properties of Water Adsorbed on Quartz.J. Phys. Chem., 1961, 65:1676
G M Dorris and D G Gray. Adsorption of n-alkanes at Zero Surface Coverage on Cellulose Paper and Wood Fibers.J. Colloid Interface Sci., 1980, 77:353
E Papiere and J Schultz. Surface Properties of a Calcium Carbonate filler Treated with Stearic Acid.Eur. Polym. Journal, 1984, 20(12):91
F M Fowkes Calculation of Work of Adhesion by Pair Potential Summation.J. Colloid Interface Sci., 1968, 28:108
G J Jr, Gaines. Surface and Interfacial Tension of Polymer Liquids —A Review.Polymer Eng. and Sci., 1972, 12(1):70
S Wu. Interfacial and Surface Tensions of Polymers.J Macromol. Sci., 1974, 10(1):82.
A W Adamson.Physical Chemistry of Surface, London: Jogn-Wiley and Sons Inc. 1976.
Author information
Authors and Affiliations
Additional information
FU Zheng-Yu : Born 1963
Jointly funded by the National Excellent Young Scientists Foundation of China (No. 59925207) and the Natural Science Foundation of China (No. 59872024)
Rights and permissions
About this article
Cite this article
Zheng-yi, F., Shi-liu, W. Study on the surface free energy of ground CaO by IGC. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 17, 1–5 (2002). https://doi.org/10.1007/BF02832609
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02832609