Rheo-dielectric Behavior of Carbon Black Suspensions

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概要

• 論文の詳細を見る

• Rheo-dielectric behavior was examined for suspensions of two types of carbon black (CB) particles in varnish. For one type of CB particles having plain carbon surfaces, an agglomerated network was fully developed to exhibit low-frequency elasticity (under small strains) and high electrical conductance. This conductance decreased significantly under flow, reflecting flow-induced rupture of the network structure. This rheo-dielectric change well corresponded to the pseudo-plastic, non-Newtonian behavior of the viscosity η. In contrast, for the other type of CB particles having oxidized carbon surface, only fragmented aggregates were formed. Correspondingly, this CB exhibited just moderate rheo-dielectric changes and weak nonlinearities in its η. These results demonstrated the usefulness of the rheo-dielectric method for detecting the connectivity of the network composed of conductive CB particles.

• 一般社団法人　日本レオロジー学会の論文
• 2001-06-01

著者

• WATANABE H.

  Institute for Chemical Research, Kyoto University

• MATSUMIYA Y.

  Institute for Chemical Research, Kyoto University

• Kakiuchi M.

  Chemical Science Laboratories Mitsubishi Chemical Corporation

• AOKI Y.

  Chemical Science Laboratories, Mitsubishi Chemical Corporation

関連論文

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• Synthesis and Linear Viscoelasticity of Model Comb Polymers
• Rheo-Dielectrics: Its Applicability
• Thermal Neutron Spin-Echo Studies on Dynamics of a Glass-Forming Polymer in a High Q Range(Condensed Matter : Structure, Mechanical and Thermal Properties)
• On the Estimation of Stress in Steady Shear Flow from the Dynamic Viscoelasticity for Polymeric Liquids
• Creep Behavior of the Factorable BKZ Constitutive Model
• Rheo-dielectric Behavior of Carbon Black Suspensions

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