Transient Study on the Shear Thickening Behaviour of Surface Modified Fumed Silica Suspensions in Polypropylene Glycol

2008 ◽  
Author(s):  
F. J. Galindo-Rosales ◽  
F. J. Rubio-Hernández ◽  
Albert Co ◽  
Gary L. Leal ◽  
Ralph H. Colby ◽  
...  
Keyword(s):  
Fumed Silica ◽  
Shear Thickening ◽  
Polypropylene Glycol ◽  
Transient Study ◽  
Surface Modified ◽  
Silica Suspensions

scholarly journals Anisotropic Nanoparticles Contributing to Shear-Thickening Behavior of Fumed Silica Suspensions

ACS Omega ◽  
2017 ◽  
Vol 2 (12) ◽  
pp. 8877-8887 ◽  
Author(s):  
Mahla Zabet ◽  
Kevin Trinh ◽  
Hossein Toghiani ◽  
Thomas E. Lacy ◽  
Charles U. Pittman ◽  
...  
Keyword(s):  
Fumed Silica ◽  
Shear Thickening ◽  
Anisotropic Nanoparticles ◽  
Thickening Behavior ◽  
Silica Suspensions

scholarly journals Heat Transfer and Rheological Behavior of Fumed Silica Nanofluids

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1535 ◽  
Author(s):  
A.I. Gómez-Merino ◽  
J.J. Jiménez-Galea ◽  
F.J. Rubio-Hernández ◽  
J.L. Arjona-Escudero ◽  
I.M. Santos-Ráez
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Rheological Behavior ◽  
Fumed Silica ◽  
Shear Thickening ◽  
Good Control ◽  
Thermomechanical Properties ◽  
Polypropylene Glycol ◽  
Conductivity Measurements ◽  
Liquid Phases

The addition of nanoparticles to liquid media can improve thermomechanical properties of dispersants. This ability gives rise to the development of multiple applications of nanofluids (NF) in branches so different as electronic and photonic devices or cosmetic industry. Logically, these applications require a good control of heat transfer and flow properties. Moreover, if we consider the necessity to optimize industrial processes in which NF take part, it is necessary to obtain possible relationships between both physical mechanisms. Specifically, in this work, a study about thermal conductivity and rheological behavior of fumed silica suspensions in polypropylene glycol (PPG400) and polyethylene glycol (PEG200) was performed. The study of these two suspensions is interesting because the flow behaviors are very dissimilar (while the fumed silica in PEG200 suspension is viscoplastic, the fumed silica in PPG400 suspension shows shear-thickening behavior between two shear-thinning regions), despite the addition of fumed silica producing similar enhancement of the relative thermal conductivity in both liquid phases. The more outstanding contribution of this work lies in the combination of rheological and conductivity measurements to deepen in the understanding of the heat transfer phenomenon in NF. The combination of rheological together with thermal conductivity measurements have permitted establishing the mechanisms of liquid layering and aggregate formation as the more relevant in the heat transfer of these silica fumed suspensions.

Effect of Temperature on the Shear-Thickening Behavior of Fumed Silica Suspensions

2015 ◽  
Vol 7 (33) ◽  
pp. 18650-18661 ◽  
Author(s):  
Justin Warren ◽  
Sean Offenberger ◽  
Hossein Toghiani ◽  
Charles U. Pittman ◽  
Thomas E. Lacy ◽  
...  
Keyword(s):  
Fumed Silica ◽  
Shear Thickening ◽  
Effect Of Temperature ◽  
Thickening Behavior ◽  
Silica Suspensions

On the effectiveness of incorporating shear thickening fluid with fumed silica particles in hip protectors

2017 ◽  
Vol 27 (1) ◽  
pp. 015021 ◽  
Author(s):  
A Haris ◽  
B W Y Goh ◽  
T E Tay ◽  
H P Lee ◽  
A V Rammohan ◽  
...  
Keyword(s):  
Fumed Silica ◽  
Shear Thickening ◽  
Silica Particles ◽  
Shear Thickening Fluid ◽  
Hip Protectors
Sign in / Sign up

Export Citation Format

Share Document