TY  - CHAP
AU  - Frielinghaus, Henrich
AU  - Pyckhout-Hintzen, Wim
TI  - Chapter 10: Neutron Scattering on different states of polymer/clay compounds: Fromsolution to dry states.
CY  - Amsterdam
PB  - Elsevier Science
M1  - FZJ-2017-05866
SN  - 978-0-323-46153-5
SP  - 327-362
PY  - 2017
AB  - Nanocomposites [1] in general have gained importance in nowadays products leading to improved performance of these complex compound materials. The structure of the solid particles is not limited in terms of shape in advance, but their specific function is tightly connected to their shape. Scattering experiments [2, 3, 4] are often employed to supervise production routes and the final performance, but not all possibilities of scattering experiments are exploited due to several reasons: Engineers need to enter the unknown stage of scattering experiments, and the scattering experts need to simplify their experience to simple usable recipes that are applicable and reliable. This process is still ongoing and the authors hope to contribute to this highly interesting journey.  The advantages [5, 6] of clay-polymer nanocomposites [7] are already explored: mechanical improvements [8, 9], fire retardancy [5], and gas permittivity [10]. A good dispersion state is not always given a priori, and special strategies need to be employed [11, 12]: One might need strong shear fields, or even chemical modifications which either cover the clay with surfactants to reduce the surface tension or directly graft polymers to the particles. The obtained results of such measures need to be explored. Here scattering experiments come into play. They allow for characterizing the dispersion state and give feedback to the dispersion strategy. When employing microscopic models to connect the nanostructure with the macroscopic behavior, new insights might be gained that would allow for predictive tailoring of the macroscopic behavior. For instance the prediction of rheological properties of clay containing systems is still a demanding task.
LB  - PUB:(DE-HGF)7
UR  - https://juser.fz-juelich.de/record/836824
ER  -