Rheological study of semidilute aqueous solutions of a
In this paper, the linear and nonlinear rheological behavior of semidilute aqueous solutions of a recently synthesized thermoassociative graft copolymer was investigated, as a function of temperature and polymer concentration.
Particle-level simulations are used to study the rheology of monodispersed suspensions of rigid and flexible fibers in a creeping shear flow of a Newtonian fluid.
Rheological studies of semidilute polyacrylamide/carbon
Rheological studies of semidilute polyacrylamide/carbon nanotube nanofluids Article (PDF Available) in Journal of Polymer Research · October 2013 with 60 Reads How we measure 'reads'
Rheological and Structural Characterization of Hydrophobically Modified Polyacrylamide Solutions in the Semidilute Regime Article in Macromolecules 37(4) · January 2004 with 29 Reads
Rheological study of semidilute aqueous solutions
Rheological study of semidilute aqueous solutions of a thermoassociative copolymer Article (PDF Available) in Journal of Rheology 47(2) · March 2003 with 152 Reads How we measure 'reads'
The present work is concerned with experimental results of rheological characteristics of polyacrylamide (PAM) and of partially hydrolyzed polyacrylamide (HPAM) (degree of hydrolysis up to 80%) in aqueous and aqueous/sodium chloride solutions with changing experimental conditions such as polymer concentration, temperature, solvent quality, and shear rate applied.
The rheological behavior of polyacrylamide solution II
The rheological behavior of the polyacrylamide solution were studied over the 20–50 ppm range and the temperature range of 20–50°C. Fig. 1 , Fig. 2 show the experimental results of the shear stress ( τ ) and shear rate ( γ ̇ ) and indicate the non-Newtonian behavior of these solutions.
AbstractThe viscometric behaviour of polyacrylonitrile solutions in dimethylformamide has been examined in dilute and extremely dilute regimes of concentration. For semidilute and concentrated solutions, viscoelastic properties were determined and discussed. The overlap concentration was evidenced as being the crossover of two scaling laws characterizing the entangled and nonentangled solution
Rheological Properties in Aqueous Solution
Inverse emulsion polymerization technique was employed to synthesize hydrophobically modified polyacrylamide polymers with hydrophobe contents near to feed composition. Three different structures were obtained: multisticker, telechelic, and combined. N-Dimethyl-acrylamide (DMAM), n-dodecylacrylamide (DAM), and n-hexadecylacrylamide (HDAM) were used as hydrophobic comonomers. The effect of the
This study was based on investigating the applicability of multi-walled carbon nanotube (MWCNT), nanosilica and glass beads (GBs) as primary additives for enhancing the filtrate volume, lubricity and other rheological properties of WBDF. This study focused on the effect of different concentrations such as 0.001 ppb, 0.002 ppb, 0.01 ppb, 0.02
Enhanced rheological properties and performance
Further studies are needed to reveal the role of these factors. Effect of particle shape. Although most of the studies of WLMs-nanoparticles systems were performed with spherical particles, there are some articles describing the systems with particles of other shapes, in particular, with long rodlike particles 34, 35, 37, 42, 43, 44.
Rheology of fumed silica nanoparticles/partially hydrolyzed polyacrylamide aqueous solutions under small and large amplitude oscillatory shear deformations in Rheological Measurement (Springer, Netherlands, 1998), pp Kawaguchi, M., T. Yamamoto, and T. Kato, “ Rheological studies of hydrophilic and hydrophobic silica suspensions in the
- What is polyacrylamide flocculant anionic?
- The performance of polyacrylamide flocculant anionic in thickening, flocculation and rheological regulation plays an important role in oil production. It is widely used in drilling, water plugging, acidified water, fracturing, well washing, completion, drag reduction, scale prevention and oil displacement.
- What is anionic polyacrylamide?
- technology-oriented and customer first. Anionic Polyacrylamide is produced when acrylamide is polymerized with an anionic comonomer. Water soluble Polyacrylamide have been used for decades to facilitate solidliquid separations in wastewater and drinking water treatment, the pulp and paper industry, aquaculture, and many other industrial processes.
- What are sinofloc anionic flocculants?
- SINOFLOC anionic flocculants are co-polymers of acrylamide with increasing proportions of acrylate groups, which give the polymers negative charges, and thus anionic active character, in aqueous solution. We can offer two types of products of anionic polyacrylamide powder and anionic polyacrylamide emulsion.
- Which emulsion forms of anionic polyacrylamide should be avoided?
- Emulsion forms of anionic PAM should be avoided. Residual acrylamide content less than 0.05%. Top anionic polyacrylamide flocculant & powder supplier, which provides efficient & reliable polyacrylamide (PAM) solutions for water treatment and pulp and paper making, mineral washing.
