rheology – Page 3 – TechConnect Briefs

Comparison of Heat Transfer and Fluid Dynamic Performance of Nanofluids

Kulkarni D.P., Namburu P.K., Das D.K., University of Alaska Fairbanks, US

Many recent studies have shown that nanofluids with metallic nanoparticles as suspension increase the thermal conductivity of base fluid by a substantial amount. Research on copper oxide (CuO) nanoparticles in water has revealed that a [...]

Effects of interface on the physical properties of nanoparticle-filled composites

Jang K.H., Kim B.C., Hanyang University, KR

The effects of interface affinity on the rheological responses of nanoparticle suspended polymer solutions were investigated. The polarity on rheological properties of zinc oxide (ZnO) nanoparticle filled-polymer solution was investigated for polyacrylonitrile (PAN) and polystyrene [...]

Efects of silver nanoparticle on the physical properties of syndiotactic polypropylene

Kang E.C., Kim B.C., Hanyang University, KR

The effects of silver nanoparticle on the physical properties of syndiotactic polypropylene (sPP) were investigated in terms of rheological responses and crystallization behavior under shear. Silver nanoparticle played as the nucleating agent of sPP by [...]

Nano-structuring of isotactic polypropylene in presence of a self-assembling nucleating agent under defined flow conditions

Balzano L., Rastogi S., Peters G., Technical University Eindhoven, NL

Presence of additives in polymers plays an important role in physical and mechanical properties. For an example DMDBS is one of the frequently used additives in polypropylenes. The additive is used to achieve higher transparency [...]

Microfluidics and Rheology of Carbon Black Dilute Suspensions: Modeling, Measurement, and Applications

Aramphongphun C., Hemminger O., Castro J.M., Lee L.J., The Ohio State University, US

Rheology and microfluidics are essential and challenging topics in designing microfluidic devices and materials processing. A study of rheological properties (e.g. viscosity) of complex fluids becomes more important in the flow at microscale due to [...]

Dispersion and rheological aspects of SWNTs in ultra high molecular weight polyethylene

Zhang Q., Lippits D.R., Vaidya S.N., Rastogi S., Eindhoven University of Technology, NL

A new method is developed to homogeneously disperse single-walled carbon nanotubes bundles (SWNTs) in an intractable polymer, for example, ultrahigh molecular weight polyethylene (Mw>3*106 g/mol) (UHMWPE). The dispersion is obtained by spraying an aqueous solution [...]