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Clustering and Percolation in Suspensions of Carbon Black



Jeffrey J Richards, Julie Hipp, John K Riley, Norman J. Wagner, Paul Butler


In situ measurements are an increasingly important tool to inform the complex relationship between nanoscale properties and macroscopic measurements. These relationships can be used to inform the development of new materials, we have developed a SANS compatible Couette geometry capable of making impedance spectroscopy measurements under continuous shear. We have also mounted this geometry on a commercial strain controlled rheometer with modified Forced Convection Oven (FCO). In this manuscript, we introduce the simultaneous measurement of impedance spectroscopy, rheological properties and small angle neutron (SANS) data. We describe the validation of this Dielectric RheoSANS instrument and demonstrate its operation using two-systems - an ion gen comprised of PluronicR surfactant and ionic liquid and poly(3-hexylthiophene) organogel. In both of these systems, there is interest in how shear influences the microstructure state of the material. By monitoring the conductivity and rheological response of these materials at the same time, we can probe structure-property relationships inherent to the macroscopic material response.


Rheology, Impedance Spectroscopy, Small Angle Neutron Scattering


, J. , Hipp, J. , , J. , , N. and Butler, P. (2017), Clustering and Percolation in Suspensions of Carbon Black, Langmuir, [online], (Accessed June 20, 2024)


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Created November 17, 2017, Updated June 26, 2018