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@PHDTHESIS{Kucharczyk:50673,
author = {Kucharczyk, Pawel},
title = {{Q}ualifizierung von {P}olysiloxanen für die
langzeitstabile {K}onditionierung radioaktiver {A}bfälle},
volume = {4195},
issn = {0944-2952},
school = {Techn. Hochsch. Aachen},
type = {Dr. (FH)},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {PreJuSER-50673, Juel-4195},
series = {Berichte des Forschungszentrums Jülich},
pages = {IV, 152 p.},
year = {2005},
note = {Record converted from VDB: 12.11.2012; Aachen, Techn.
Hochsch., Diss., 2005},
abstract = {At present German policy envisages interim storage of all
radioactive waste (for approximately 30 years) until a final
repository is available. This therefore leads to higher
standards for storage containers. Silicone elastomers
(polysiloxanes), materials on the basis of silicon and
oxygen with organic substituents, have various physical and
chemical properties and seem to be suitable for the
long-term storage of low- and intermediate-level radioactive
waste. The aim of the present work is the qualification of a
new coating material for storage containers. The use of
polysiloxanes in other applications was also investigated.
An important criterion for the coating is the simplicity of
its application. Moreover, it should also have a high
adhesion on steel as well as providing protection against
corrosion. These properties were investigated for different
polysiloxanes. The spraying tests showed that polysiloxane
material with a viscosity of up to 45000 mPas could be
applied by the airless spraying method. An elastic coating
was produced which could ensure protection against
mechanical impacts. In the framework of water vapour
experiments, a very high diffusion constant was determined.
The corrosion test confirmed that the polysiloxane coating
provided only insufficient corrosion protection if the
sample was in contact with water and water vapour at the
same time. This problem was solved by using an additional
priming coat of 60 $\mu$m zinc paint. The adhesion test
showed that polysiloxanes have different levels of adhesion.
The best adhesion was determined for condensation-cured
silicones. The addition-cured materials had a lower
adhesion, which was improved by the application of a priming
coat. The outcome of these investigations is a wide spectrum
of applications for polysiloxanes which can be used as
firmly adhering coatings or removable decontamination
layers.},
cin = {ISR},
cid = {I:(DE-Juel1)VDB182},
pnm = {Nukleare Sicherheitsforschung},
pid = {G:(DE-Juel1)FUEK249},
typ = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
url = {https://juser.fz-juelich.de/record/50673},
}