Studies on Formation of Wooden Bases for Wood Finish (IV)
Adhesion of Extender Pigments on Wood Suface
1978 Volume 51 Issue 10 Pages 573-580
Details
1978 Volume 51 Issue 10 Pages 573-580
Obtaining the adhesion rate of the extender pigments on the wood surface and the packed condition of the flat particles contained within the extender pigments in the vessel model, the following results were concluded.
1) After the filling treatment on the extender pigments No.2, 11, 13 and 15, the adhesion rate increased under pressure and on the Y. S., the K. S. series (No.2 and No. 15 with silica added) and the Y. Y. series, (similar extender pigments No.13 and No.2 mixed) the rate of increase of the adhesion rate is great under pressure.
2) Observing the packed structure of the extender pigments, the flat particles in the extender pigments of unstressed condition have an -86.5° average inclination to the standard axis (press direction), and the magnitude of orientation is small (24%).
In comparison to this, at 10 kg/cm2 the average inclination is -66°, the magnitude of orientation is 55.8% and at 15 kg/cm2 the average inclination is -71°, the magnitude of orientation is 61.6%.
The flat particles orient under pressure in the perpendicular direction to the press direction.
