Comparative studies of rheological properties
Comparative studies of rheological properties of polyacrylamide and partially hydrolyzed polyacrylamide solutions
Comparative studies of rheological properties of polyacrylamide and partially hydrolyzed polyacrylamide solutions Article in Journal of Applied Polymer Science 103(4):2235 - 2241 路 February 2007
Comparative studies of rheological properties
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 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.
Rheological Properties of Partially Hydrolyzed
This work aims to improve the rheological properties of partially hydrolyzed polyacrylamide (HPAM) for enhanced oil recovery by using silica (or silicon dioxide, SiO2) nanoparticles (NPs). Novel aqueous HPAM-based SiO2 nanocomposites were formulated, and their rheological properties were investigated under different salinities, temperatures, and aging times.
This work aims to improve the rheological properties of partially hydrolyzed polyacrylamide (HPAM) for enhanced oil recovery by using silica (or silicon dioxide, SiO 2) nanoparticles (NPs).Novel aqueous HPAM-based SiO 2 nanocomposites were formulated, and their rheological properties were investigated under different salinities, temperatures, and aging times.
Advances in chemical modifications of starches and their
Advances in chemical modifications of starches and their applications. The vast majority of starch is industrially produced in the world either for sale as starch or for conversion to other products The rheological properties like flow behavior and sol-gel transition of the dually modified starch depended on the molecular structure.
Description: Welan gum is a specialty fermentationpolysaccharide produced by fermentation of Sphingomonas sp. Available in white powder form, Welan Gum is a type of food additive that has unique rheological attributes. This water soluble substance has 70 degree C to 80 degree C melting point range and its vapor density is 26.25 lbs/ft3.
US5030366A - Spacer fluids
Spacer fluids providing an effective buffer between drilling fluids and cement slurries during well completion. The spacer fluids comprise a sulfonated styrene copolymer dispersant and one or more additional components such as surfactants, viscosifiers and weighting materials to form a rheologically compatible fluid between the drilling fluid and the cement slurry.
Anionic polyacrylamide APAM APAM Properties According to different uses, anionic polyacrylamide is sorted into two kinds of manufacturing technique 1 Homopolymerization hydrolysis and posthydrolysis of Nonionic polyacrylamide 2 Copolymerization acrylamide, acrylic acid or sodium acrylate . READ MORE
Modification of Porang ( Amorphophallus oncophyllus
Effect of konjac glucomannan on syneresis, textural properties and the microstructure of frozen rice starch gels. Carbohyd. Polym., 83: 291-296. Direct Link; Chen, J., J. Li and B. Li, 2011. Identification of molecular driving forces involved in the gelation of konjac glucomannan: Effect of degree of deacetylation on hydrophobic association
drilling mud polyacrylic acid sodium (paas) Drilling Mud Thinner Sodium Polyacrylate Paas . Sodium Polyacrylate PAAS is a synthetic anionic polyelectrolyte (modified acrylic polymer) used to reduce fluid loss and stabilize rheology in fresh, brackish or salt water-based drilling fluids.
- What are the types of polyelectrolyte?
- Polyelectrolyte is a type of polymer with positive or negative charges on its repeating units, and may dissociate in water or lower alcohol, forming a charged poly-ion surrounded by an atmosphere of small, mobile counter ions. On the basis of the types of charge, polyelectrolyte can be divided into anionic, cationic and amphoteric polyelectrolyte.
- Are polyelectrolytes a function of the distribution of aluminum forms?
- The impact of the nature and ratio of polyelectrolytes used was examined as a function of the distribution of aluminum forms in the composite coagulant. The intramolecular interaction between PAC and polyelectrolytes was visualized by FTIR analysis and studied by density functional theory (DFT).
- Which Polyelectrolytes have the greatest industrial value?
- Synthetic polyelectrolytes that have the greatest industrial value are low cost, easily manufactured, and available in a variety of polymer characteristics (ionic charge and molecular weight) and product forms. Liquid products consist of aqueous solutions, inverse emulsions, and aqueous, oil-free, salt dispersions.
- What is the chemical structure of a polyelectrolyte?
- Chemical structures of two synthetic polyelectrolytes, as examples. To the left is poly (sodium styrene sulfonate) (PSS), and to the right is polyacrylic acid (PAA). Both are negatively charged polyelectrolytes when dissociated. PSS is a 'strong' polyelectrolyte (fully charged in solution), whereas PAA is 'weak' (partially charged).
