Polymers are becoming the material of choice for high voltage outdoor insulators. However being mostly organic, they are susceptible to aging and degradation (weathering) due to environmental (and electrical) stresses. This necessitates the study of their long-term behavior. It is desirable to study the long-term performance of the insulators in the service environment under multistress conditi...

The fungal discolouration of silicone rubber prostheses is reported in four cases. In two of the cases, the discolouration was caused by the fungus Candida tropicalis. In the other two cases, two different fungal organisms, namely Trichoderma sp. and Scedosporium prolificans were incriminated. The non-porous silicone rubber layers create an enclosed environment in the suction cup of the prosthe...

Cable accessories for mediumand high voltage applications contain field grading and field zoning parts or layers. These parts often consist of electrically conductive silicone elastomers. The electrical conductivity is achieved by using selected and long-term tested carbon blacks. Conductive layers and parts are used to provide safety against exposure, inner shielding and an electrical contact ...

Polyelectrolyte multilayer (PEM) films, established using the layer-by-layer (LbL) technique, are attractive for controlled drug delivery in order to improve tissue regeneration. For instance, the LbL-deposition provides the possibility to incorporate biomolecules via electrostatic interactions for drug delivery, which might be moreover combined with a stable biofunctionalization via covalent b...