The Examination of the Degree of Coverage of the Fused Alumina Abrasive by Resol Wetting Agent by Inverse GC

Abstract

The coverage of abrasive (fused alumina) by resol, used in manufacturing of grinding tools, was estimated by means of inverse gas chromatography (IGC). γSD and χ12∞ parameters were used to describe the wettability of abrasive by resol. γSD shows activity of the surface of fused alumina and it was found that it is correlated with the wettability of fused alumina by resol. By using χ12∞ it was possible to calculate the degree of the coverage (DC parameter) of abrasive by resol. This method was used as an alternative for the Washburn sorption method. IGC was found to be more accurate and informative method. The results show that IGC can be applied to quantitatively determine the degree of coverage the abrasive material, fused alumina, by resol.