Abstract
ABSTRACTMany non-Newtonian materials have viscosities proportional to a power of shear rate. Although, generally, such relationships are regarded as being empirical, it is shown that power-law behavior arises when structure change with shear rate tends to saturation and results in flow activation energy being inversely proportional to shear rate. A temperature-dependent power-law index is predicted as is observed. Viscosity measurements are presented for a 10% sodium carboxymethylcellulose solution. It was found that both activation entropy and enthalpy decreased with shear rate, the former producing a small shear thickening and the latter a dominant shear thinning contribution to flow.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
