Scattering structure factor of colloidal gels characterized by static light scattering, small-angle light scattering, and small-angle neutron scattering measurements.
The scattering structure factor of a colloidal gel in a q range of 5 orders of magnitude has been determined by combining static light scattering, small-angle light scattering, and neutron scattering measurements. It exhibits simultaneously two types of structure information: a mass fractal scaling within the clusters that constitute the gel and a surface fractal scaling for length scales larger than that of the clusters. Such scattering behavior can be well interpreted by the pair-correlation function proposed in the literature to model an ideal structure constituted of mass fractal objects inside surface fractal objects.
Wu
Hua
H
Swiss Federal Institute of Technology Zurich, Institut für Chemie- und Bioingenieurwissenschaften, ETH-Hönggerberg/HCI, CH-8093 Zürich, Switzerland.
Xie
Jianjun
J
Lattuada
Marco
M
Morbidelli
Massimo
M