starch g nonionic polyacrylamide using method in Abuja
starch g nonionic polyacrylamide using method in Abuja
starch g nonionic polyacrylamide using method in Abuja
starch g nonionic polyacrylamide using method in Abuja
starch g nonionic polyacrylamide using method in Abuja
rheological properties and swelling behavior of nanocomposite preformed particle gels based on starch-graft-polyacrylamide loaded with nanosilica

Rheological properties and swelling behavior of nanocomposite preformed particle gels based on starch-graft-polyacrylamide loaded with nanosilica

Abstract Gel treatment using preformed particle gels is a technique applied in mature reservoirs to control excess water production. In this study, a novel nanocomposite gel was proposed and optimized for better performance in high-salinity and high-temperature conditions of oilfields.

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comparison of effective methods to determine concentrations of acrylamide-based polymers

Comparison of Effective Methods to Determine Concentrations of Acrylamide-Based Polymers

This paper evaluates five different methods for polymer concentration determination, nitrogen digestion method, starch-cadmium iodide (CdI 2) method, turbidimery method, total organic carbon (TOC) method and gel permeation chromatography (GPC) method.

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starch-g-copolymers: synthesis, properties and applications

Starch-g-Copolymers: Synthesis, Properties and Applications

]. It is the most common constituent of human diet, where it accounts for the major share of energy required for the sustenance of life. It is widely distributed in the form of tiny granules as the major reserve carbohydrate in stems, roots, grains and fruits of all forms of green leafed plants.

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materials | free full-text | synthesis and characterization of novel hybrid flocculants based on potato starch copolymers with hollow

Materials | Free Full-Text | Synthesis and Characterization of Novel Hybrid Flocculants Based on Potato Starch Copolymers with Hollow

Abstract Novel carbon nanofiller-based starch-g-polyacrylamide hybrid flocculation materials (St-PAM-CS) were in situ prepared using potato starch (St), acrylamide (AM), and hollow mesoporous carbon spheres (CSs; diameters of 300¨C400 nm).

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polyelectrolyte polymers¡ªtypes, forms, and function

Polyelectrolyte polymers¡ªTypes, forms, and function

Polyacrylamide Synthetic polyelectrolytes 34.1. Synthetic polyelectrolytes There are many definitions for polymeric polyelectrolytes in the literature [1], [2], [3]. In the simplest sense, water-soluble polyelectrolytes are polymers that contain charged disassociating monomer subunits.

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starch graft copolymers for water treatment | semantic scholar

Starch Graft Copolymers for Water Treatment | Semantic Scholar

Graft polymers produced by the reaction of starch with cationic, anionic and nonionic acrylic monomers show considerable potential as flocculating agents for treatment of industrial and municipal wastewaters, for beneficiation of mineral ores and for retention of clay in filled paper.

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journal of applied polymer science | wiley online library

Journal of Applied Polymer Science | Wiley Online Library

Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization. The effects of the monomer concentration, initiator concentration, reaction time, feeding temperature and reaction temperature on the molecular weight were systematically investigated through single-factor and orthogonal experiments.

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polyacrylamide degradation and its implications in environmental systems | npj clean water - nature

Polyacrylamide degradation and its implications in environmental systems | npj Clean Water - Nature

1. as a viscosity enhancer in enhanced oil recovery (EOR) and more recently as a friction reducer in high volume hydraulic fracturing (HVHF) 1, 4, 9, 10, 11, 12, 13, 14, 15; 2. as a flocculant in...

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the thermal gelation behavior and performance evaluation of high molecular weight nonionic polyacrylamide and polyethyleneimine mixtures for in

The Thermal Gelation Behavior and Performance Evaluation of High Molecular Weight Nonionic Polyacrylamide and Polyethyleneimine Mixtures for In

The thermal gelation behavior of nonionic polyacrylamide (NPAM) and PEI was investigated, and sodium citrate (NaCit) was selected as a new retarder to prolong the gelation time. The gelation performance of NPAM/PEI gel system can be adjusted by varying NPAM or PEI concentration, and a quadratic model is developed by statistical analysis, which predicts the gelation time of NPAM/PEI gel system.

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selective flocculation/magnetic separation of ultrafine iron ore particles with corn starch and polyacrylamides: a comparative study: mineral

Selective Flocculation/Magnetic Separation of Ultrafine Iron Ore Particles with Corn Starch and Polyacrylamides: A Comparative Study: Mineral

Reverse cationic flotation of low-grade iron ore (25¨C53% Fe) with starch as a depressant of the iron oxide minerals and amine as a collector of silica is the most widely employed route worldwide... Selective Flocculation/Magnetic Separation of Ultrafine Iron Ore Particles with Corn Starch and Polyacrylamides: A Comparative Study: Mineral Processing and Extractive Metallurgy Review: Vol 0, No 0

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