Thermoplastic vulcanizates (TPVs) are a special class of thermoplastic elastomers, which are produced by simultaneously mixing and crosslinking a rubber with a thermoplastic polymer at an elevated temperature. Peroxide-cured TPVs based on blends of silicone rubber and thermoplastic Engage of two different types, mainly ethylene-octene and ethylenebutene copolymers at different blend ratios have...

Enhanced oil recovery (EOR) techniques are essential to improve production, and polymer flooding has become one of the promising technologies for Brazilian Pre-Salt scenario. Biopolymers offer a range advantages considering conditions compared synthetic polymers, such as resistance high salinity, temperature, mechanical degradation. In that sense, bulk rheology is first step in workflow perform...

Abstract Mixing and homogenization in anaerobic digesters are affected by the flow curve of sludge. The aim this study is to mathematically express dense anaerobically digested sludge behaving as thixotropic pseudoplastic fluids. Time-dependent changes two parameters, i.e., consistency index ( µ p ) n ), shear modeled using a second-order kinetic equation with coefficient that includes power fu...

Mixing is a common process in food industry, and in particular it is interesting to develop optimal mixers in order maximize fluid mixing and minimize energy consumption by reducing the viscous dissipation effects. Although many studies and results had been presented in literature for both batch and static mixers (Rauline et al. 2000 and Mutsakis et al. 1986 for a review) the lack of a develope...