Ensemble effects in the detachment of floating microspheres

Autor: S. Tchaliovska, Ponisseril Somasundaran, I. Nishkov, R. Varbonov
Rok vydání: 1992
Předmět:
Zdroj: Colloids and Surfaces. 64:35-38
ISSN: 0166-6622
DOI: 10.1016/0166-6622(92)80159-y
Popis: The force of detachment from the air/liquid interface of glass microspheres in dodecylamine hydrochloride solutions has been determined for particles cf radius 25–240 μm. For ensembles of large particles, the values obtained for the maximum force of attachment were within 15% of those predicted by earlier theories, whereas particles smaller than 100 μm exhibited a force of attachment that exceeded the predicted values by 300–400%. However, single particles in the above size range showed no measurable deviation. The deviation exhibited by ensembles has been attributed to the cooperative interaction between the particle fineness and the shape irregularities at the interface.
Databáze: OpenAIRE