Control of aggregation in production and handling of nanoparticles
Peukert W, Schwarzer HC, Stenger F (2003)
Publication Language: English
Publication Type: Conference contribution
Publication year: 2003
Pages Range: -
Conference Proceedings Title: 4th International Conference on Bulk Solids Handling
Event location: Budapest
Abstract
In product engineering of particulate systems, the property function relates the dispersity to the product properties, whereas the process function shows how to produce the required dispersity. These principles are applied to the production of nanoparticles. Nanoparticles are controlled by surface forces. Due to their high mobility nanoparticles are unstable and may coagulate rapidly if the particles are not stabilized. Stabilization is achieved by tailoring the particulate surfaces, e.g. through repulsive double layer forces. Macroscopic properties are thus controlled by microscopic control of the interfaces, i.e. we bridge the gap between the molecular level and material properties. These principles are generally valid and are thus applied to precipitation and to nanomilling in stirred ball mills. The mean particle size in precipitation can be controlled by either the mixing intensity or the surface charge density of the particles. In stirred media mills oxide particles as small as 10 nm can be achieved by stabilizing the particles appropriately.
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Germany (DE)How to cite
APA:
Peukert, W., Schwarzer, H.-C., & Stenger, F. (2003). Control of aggregation in production and handling of nanoparticles. In 4th International Conference on Bulk Solids Handling (pp. -). Budapest, HU.
MLA:
Peukert, Wolfgang, Hans-Christoph Schwarzer, and Frank Stenger. "Control of aggregation in production and handling of nanoparticles." Proceedings of the International Conference on Bulk Solids Handling, Budapest 2003. -.
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