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Materialien/Werkstoffe Poster: Do., 13:00–15:30 D-P380
SANS/USANS investigations of SiO2 nanoclusters in different organic solutions
Helmut Eckerlebe 1 , P. Klaus Pranzas 1 , Christian Eger 2 , Manfred Pyrlik 2
1 GKSS Forschungszentrum, Max-Planck-Str. 1, D-21502 Geesthacht – 2 hanse-chemie
AG, Charlottenburger Str. 9, D-21502 Geesthacht
Nanoscaled particles play an important role in various fields, e. g. as pigments and
filler material in paints, coatings, castings, pottery or insulating materials. Using
nanoscaled inorganic fillers new products can be developed and product properties can
be optimized. In addition to particle size, the degree of agglomeration has an important
influence on the properties of new materials.
Hanse Chemie develops the technology to synthesize oxide nanoparticles in an aqueous
environment and to transform the particles into organic reactive polymers retaining
their monodispersed structure.
Small angle neutron scattering (SANS) and ultra small angle neutron scattering
(USANS) has been applied for the analysis of size and shape of nanoscaled SiO2 particles
in different organic solvents.
The mean radius of SiO2 particles of the measured samples is in the range of 8
to 40 nm. The size distribution and the corresponding volume fraction reveals that
no agglomeration of SiO2 particles has taken place transferring these particles from
aqueous environment into an organic reactive polymer matrix. The results of the
SANS/USANS measurements are the basis for a patent application.