Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Lena L. Hecht"'
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 470:179-187
We investigated the influence of a particle load of disperse phase drops on their emulsification. Newtonian liquids were chosen for this investigation and a surfactant was present in all cases. A Couette-like shear cell was used enabling us to apply
Autor:
Rafael Muñoz-Espí, Lena L. Hecht, Alexander Schoth, Caroline Wagner, Heike P. Schuchmann, Svenja Winzen, Katharina Landfester
Publikováno v:
Colloid and Polymer Science. 292:2427-2437
Hydrophilic silica particles need to be hydrophobized to be encapsulated in a polymeric environment, which can be achieved by different methods. We report on the relationship between different hydrophobization techniques of silica and the final struc
Autor:
Lena L. Hecht, Katharina Kelemen, Heike P. Schuchmann, Christian Cierpka, F. E. Crowther, Christian J. Kähler
Publikováno v:
Microfluidics and Nanofluidics. 18:599-612
High pressure homogenization is a well-established technique to achieve droplets in the submicron range. However, droplet breakup mechanisms are still not completely understood, since studies to characterize the flow are limited due to very small dim
Autor:
Heike P. Schuchmann, Alexander Schoth, Lena L. Hecht, Karsten Köhler, Tobias Merkel, Rafael Muñoz-Espí, Caroline Wagner, Katharina Landfester
Publikováno v:
Chemical Engineering Journal. 229:206-216
Composite nanostructured particles can be produced by polymerization of particle-loaded miniemulsion droplets. Breaking-up particle-loaded droplets is a challenge, because an increased viscosity and abrasiveness of the droplets has to be handled. Add
Autor:
Rafael Muñoz-Espí, Alexander Schoth, Heike P. Schuchmann, Lena L. Hecht, Reinhard Miller, Katharina Landfester, Aliyar Javadi, Karsten Köhler
Publikováno v:
Macromolecular Chemistry and Physics. 214:812-823
Autor:
Katharina Landfester, Caroline Wagner, Özge Özcan, Heike P. Schuchmann, Felix Eisenbart, Lena L. Hecht, Karsten Köhler
Publikováno v:
Macromolecular Chemistry and Physics. 213:2165-2173
The surfactant concentration in miniemulsion polymerization is a very important parameter. At surfactant concentrations lower than a critical value, coalescence of monomer droplets changes their size, whereas concentrations too high lead to the forma
Publikováno v:
Industrial High Pressure Applications, Processes, Equipment and Safety
Publikováno v:
Macromolecular Materials and Engineering. 298:235-240
Publikováno v:
Wear. 289:138-144
Solid particles present in high-pressure homogenization processes damage the equipment, especially the orifices. So far the orifices have to be exchanged frequently causing increase of cost and decrease of efficiency. Modifications in orifice geometr
Autor:
Silvia Diabaté, Joanna Pelka, Doris Marko, Anne Frühmesser, H. Blank, Heike P. Schuchmann, Helge Gehrke, Clarissa Marquardt, Carsten Weiss, Dagmar Gerthsen, Lena L. Hecht, Melanie Esselen
Publikováno v:
Nanotoxicology. 7:274-293
The use of nanostructured silica (SiO2) particles is no longer restricted to biomedical and (bio-) technological fields but rather finding applications in products of the food industry. Thus, our studies on the toxicological relevance of SiO2 nanopar