Author： De Jesus M. Cristina Morgan Jason Ahmed Rajib Rimai D. S.
Publisher： Taylor & Francis Ltd
ISSN： 0272-6351
Source： Particulate Science and Technology, Vol.25, Iss.1, 2007-01, pp. : 107-116
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The time dependence of the detachment force applied to 7 µm ground polyester particles coated with silica nanoparticles was determined by ultracentrifugation. It was found that the force required to separate the particles from the substrate increased during the first 24 hours and changed very little thereafter. Scanning electron microscopy (SEM) results suggest that the increase in adhesion is due to the particles rotating from their initial positions obtained during deposition. The role of the silica nanoparticles in determining the time dependence of the detachment force is discussed in terms of the JKR and Fuller-Tabor models.
Access to resources
Recommend
