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RHEOLOGICAL PROPERTIES OF AQUEOUS α-A1_2O_3 SUSPENSIONS WITH POLYACRYLIC ACID

Lucun Guo

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Abstract

The influence of polyacrylic acid(PAA) content , solids loading and adsorption routes on flow behavior of aqueous a -Al2O3 suspensions were studied. The experimental results show that there is an optimal dispersant content when suspension is in much lower viscosity during preparation. As the volume percent of solids loading increases, the viscosity increases also, whereas the effective content range of dispersant gets smaller. Adsorption routes have some influence on the stability of slurries. The flow behavior of the slurries with lower pH value can be greatly improved through adsorption at non-high-affinity state and the other conditions being same.

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What this paper is about

The influence of polyacrylic acid(PAA) content , solids loading and adsorption routes on flow behavior of aqueous a -Al2O3 suspensions were studied. The experimental results show that there is an optimal dispersant content when suspension is in much lower viscosity during preparation. As the volume percent of solids loading increases, the viscosity increases also, whereas the effective content range of dispersant gets smaller. Adsorption routes have some influence on the stability of slurries. The flow behavior of the slurries with lower pH value can be greatly improved through adsorption at non-high-affinity state and the other conditions being same.

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Available abstract

The influence of polyacrylic acid(PAA) content , solids loading and adsorption routes on flow behavior of aqueous a -Al2O3 suspensions were studied. The experimental results show that there is an optimal dispersant content when suspension is in much lower viscosity during preparation. As the volume percent of solids loading increases, the viscosity increases also, whereas the effective content range of dispersant gets smaller. Adsorption routes have some influence on the stability of slurries. The flow behavior of the slurries with lower pH value can be greatly improved through adsorption at non-high-affinity state and the other conditions being same.

Key concepts: Polyacrylic acid, Dispersant, Adsorption, Rheology, Materials science, Slurry, Suspension (topology), Chemical engineering

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