Shear-Induced Gelation of Self-Yielding Active Networks
نویسندگان
چکیده
منابع مشابه
Shake-gels: shear-induced gelation of laponite /PEO mixtures
Suspensions of clay particles (laponite), mixed with poly(ethylene oxide) (PEO) undergo a dramatic shear thickening when subjected to vigorous shaking, which transforms them from a low viscosity fluid into a ‘shake-gel’, a solid with elasticity sufficient enough to support its own weight. The shake-gel is reversible, relaxing back to a fluid with a relaxation time that is strongly dependent on ...
متن کاملShear-Induced Gelation and Fracture in Micellar Solutions.
A wide variety of surfactant molecules self-assemble in solution to form very long flexible micelles. While great progress has been made in understanding the flow behavior of such systems [1], there exists a large class of wormlike micellar solutions which exhibit anomalous behavior, namely, a dramatic increase in viscosity above a critical shear rate and a concomitant decrease in the turbulent...
متن کاملReversible shear gelation of polymer–clay dispersions
Reversible, shear-induced gelation of semi-dilute aqueous colloidal dispersions consisting of monodisperse discoid particles (Laponite) and weakly adsorbing polymer (polyethylene oxide) is studied through a combination of small angle neutron scattering and oscillatory shear. When shaken the samples undergo a dramatic transition from a low viscosity fluid to a self-supporting, turbid gel. This c...
متن کاملPopulation-balance description of shear-induced clustering, gelation and suspension viscosity in sheared DLVO colloids.
Application of shear flow to charge-stabilized aqueous colloidal suspensions is ubiquitous in industrial applications and as a means to achieve controlled field-induced assembly of nanoparticles. Yet, applying shear flow to a charge-stabilized colloidal suspension, which is initially monodisperse and in quasi-equilibrium leads to non-trivial clustering phenomena (and sometimes to a gelation tra...
متن کاملShear-transformation-zone theory of yielding in athermal amorphous materials.
Yielding transitions in athermal amorphous materials undergoing steady-state shear flow resemble critical phenomena. Historically, they have been described by the Herschel-Bulkley rheological formula, which implies singular behaviors at yield points. In this paper, I examine this class of phenomena using an elementary version of the thermodynamic shear-transformation-zone (STZ) theory, focusing...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2020
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.125.178003