scholarly journals Transferred Arc Production of Fumed Silica: Rheological Properties

2008 ◽  
Vol 47 (17) ◽  
pp. 6790-6795 ◽  
Author(s):  
Ramona Pristavita ◽  
Richard J. Munz ◽  
Tony Addona
2016 ◽  
Vol 18 (2) ◽  
pp. 256-264 ◽  
Author(s):  
S. Yang ◽  
M. Oostrom ◽  
M. J. Truex ◽  
G. Li ◽  
L. Zhong

A mixture of aqueous KMnO4 solution and fumed silica powders produces a gel that slowly releases a MnO4− oxidant which enhances the removal of chlorinated contaminants from pore water in aquifers.


2018 ◽  
Vol 230 ◽  
pp. 03017 ◽  
Author(s):  
Natalia Saienko ◽  
Dmitriy Demidov ◽  
Yuri Popov ◽  
Roman Bikov ◽  
Vyacheslav Butskyi

The rheological properties of aquaeous dispersion of styrene acrylate copolymer incorporating hollow aluminosilicate microspheres and AEROSIL® 300 fumed silica (a high-range water reducing admixture) have been investigated using rotational viscometer. It is established that an increase in the degree of filling with hollow microspheres results in a significant increase in the viscosity of aqueous dispersion leading to the technological difficulties when coating the protected surfaces. AEROSIL® 300 can be dosed in small amounts resulting in a decrease in the structural strength and optimal viscosity of aqueous dispersion of acrylate copolymer, which allows to significantly reduce the viscosity density, while maintaining relatively low water demand and characteristics of highly filled systems, which is crucial in the technology of their application. The combination of such fillers as AEROSIL® 300 and hollow aluminosilicate microspheres in the styrene acrylate copolymer aqueous dispersion allows the combination of a number of positive effects: a reduction in the viscosity of the material during application (without dilution) by applying high shear rate and increasing viscosity (structuring) after application, and also during their storage and transportation.


Soft Matter ◽  
2021 ◽  
Author(s):  
Xiao Liu ◽  
Decai Li

In this paper, we study the effect of hydrophilic fumed silica nanoparticles with different mass fraction on the magneto-rheological properties of magnetic fluid, and reveal the mechanism by the coarse-grained...


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