Chapter 10: Neutron Scattering on different states of polymer/clay compounds: Fromsolution to dry states.

Frielinghaus, Henrich; Pyckhout-Hintzen, Wim

Contribution to a book

FZJ-2017-05866

Chapter 10: Neutron Scattering on different states of polymer/clay compounds: Fromsolution to dry states.

Frielinghaus, H. (Corresponding author)FZJ* ; Pyckhout-Hintzen, W.FZJ*

2017
Elsevier Science Amsterdam
ISBN: 978-0-323-46153-5

Clay-Polymer Nanocomposites Amsterdam : Elsevier Science 327-362 (2017)

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Please use a persistent id in citations: http://hdl.handle.net/2128/15227

Abstract: 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.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Chemical Reactions and Advanced Materials (1st) ; Soft Condensed Matter (2nd) ; Materials Science (2nd)

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Appears in the scientific report 2017

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