Record number :
1000968
Title of article :
Dispersive surface properties of glass-ionomer cements determined by inverse gas chromatography
Author/Authors :
E. Andrzejewska، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
6
From page :
135
To page :
140
Abstract :
The surface properties of several glass-ionomer cements (GIC), restorative dental materials, (GC-Fuji, Chemadent G-J, Ketac Fil and Ketac Molar) were investigated for the first time by means of inverse gas chromatography. This method enables characterization of surface activity in dispersive (non-polar) and acid–base interactions. The ability of the surface of glassionomers to participate in dispersive interactions was expressed by the use of the dispersive component of surface free energy gds . This parameter was determined with satisfactory precision, meaning that the values of gds can be further used in the discussion of the influence of the type of GIC, its preparation and the storage time on the surface properties. The greatest capacity for dispersive interactions was revealed by Ketac Molar and the lowest by GC-Fuji. Dispersive interactions in the surface activity of glass-ionomers increased with increasing storage time after cement preparation.
Keywords :
Glass-ionomers , Surface activity , Inverse gas chromatography , Dispersive interactions
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
2005
Link To Document :
بازگشت