Research Article

Interaction and Adsorption of Hydrophobically Modified Polyacrylamide on Silica and Asphaltene Surfaces

Table 2

Contact angles of three model liquids on different surfaces.

Different surfacesContact angle (°)
DiiodomethaneGlycerolWater

Asphaltene55.657.982
Silica28.527.536.7
HMPAM on asphaltene34.529.234.3
HMPAM on silica31.315.722