Help Privacy Policy Disclaimer
  Advanced SearchBrowse





Release Studies on Mesoporous Microcapsules for new Corrosion Protection Systems


Walczak,  Magdalena
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Walczak, M. (2007). Release Studies on Mesoporous Microcapsules for new Corrosion Protection Systems. PhD Thesis, Ruhr-Universität Bochum, Bochum.

Cite as: https://hdl.handle.net/21.11116/0000-000D-848A-2
The addresses a release system, devised as an element of corrosion protection at cut-edge of coated steels. The release system consists of a dispersion of mesoporous particles, which are filled with functional molecules (Rhodamine 6G, corrosion inhibitors). The kinetics of release has been characterized both microscopically on single particles and spectroscopically for the entire dispersion. In the model system SBA-3 (fibres and cone-like particles) it has been found that transport perpendicular to the pore direction (cross-wall transport) is the rate-determining factor. The associated diffusion coefficient has been determined. Transport along the pores has also been studied and shows the diffusion coefficient of ca. one order of magnitude higher. Further, in a series of particle modifications the release times could be relatively flexibly adjusted.