Nanocomposite composed of charged wormlike micelles and magnetic particles

3rd International Conference on Small Angle Neutron Scattering dedicated to the 80 anniversary of Yu.M. Ostanevich

Molchanov, V.S.^1 ; Pletneva, V.A.^1 ; Kuklin, A.I.^2 ; Philippova, O.E.^1

Lomonosov Moscow State University, Moscow

119991, Russia^1

Joint Institute for Nuclear Research, Dubna

141980, Russia^2

关键词: Magnetic particle;    Magnetite particles;    Plateau moduli;    Rheological parameter;    Semidilute regime;    Surfactant concentrations;    Worm-like micelles;    Zero shear viscosity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/848/1/012013/pdf
DOI  :  10.1088/1742-6596/848/1/012013

来源: IOP

【 摘 要 】

Wormlike micelles solutions of cationic surfactant were examined as surfactant concentration in the presence KCl salt. Dilute and semidilute regimes were determined. Concentration power law dependencies of the zero-shear viscosity and plateau modulus indicate on charged wormlike micelles network. SANS data prove long flexible wormlike micelles formation. Nanocomposite composed of the chains and magnetite particles was prepared. It was shown that particles addition leads to increase rheological parameters of the system which is in good agreement with suggestion that micellar chains can link to particles surface covered by surfactant to decrease number of end-caps.