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Preparation of Cationic Polyacrylamide-Grafted Starch Flocculant and its Application in the Treatment of Coal Slurry Wastewater | Scientific.Net
A cationic polyacrylamide-grafted starch (St-g-CPAM) flocculant for the coal slurry wastewater, was prepared by using corn starch and acrylamide (AM) as monomers, ethylene methyl propenoyl trimethylammonium chloride (DMC) as cationic monomer
(PDF) Comparison of Cationic and Unmodified Starches in Reactive Extrusion of Starch–Polyacrylamide Graft Copolymers
Comparison of Cationic and Unmodified Starches in Reactive Extrusion of Starch–Polyacrylamide Graft Copolymers December 2009 Journal of Polymers and the Environment 17(4):248-253
Application of amphoteric polyacrylamide solely or with the combination of cationic starch for paper strength improvement :: BioResources
Pettersson, G., Hoglund, H., and Wågberg, L. (2006). “The use of polyelectrolyte multilayers of cationic starch and CMC to enhance strength properties of papers formed from mixtures of unbleached chemical pulp and CTMP. Part I,” Nordic Pulp
Cationic starch flocculants as an alternative to synthetic polymers in geotextile tube dewatering — [email protected]
The optimum doses of the cationic starch flocculants were two to four times higher than the cationic polyacrylamide polymers. Additionally, it was found that the cationic starches were more effective in minimising the turbidity of the natural
Application of a novel cationic starch in enhanced oil recovery and its adsorption properties – CHERIC
modifications based on synthetic polymers (e.g., polyacrylamide) [8,9] and natural polymers (e.g. starch, cellulose, chitin, lignose), respectively. We once prepared a cationic polymer by reaction of 2,3-epoxypropyltrimethylammonium chloride and
Cationic starch-grafted-cationic polyacrylamide based graphene oxide ternary composite flocculant – World Global Topic – Marvel Türkiye,Mstar
5/3/2021 · Cationic starch-grafted-cationic polyacrylamide based graphene oxide ternary composite flocculant: Cationic starch-grafted-cationic polyacrylamide based graphene oxide ternary composite flocculant for the enhanced flocculation of oil sludge
Dual starch–polyacrylamide polymer system for improved flocculation
1/11/2017 · A starch–PAM system reduces PAM usage for conventional and ballasted flocculation. With 0.4 mg starch/L, PAM is reduced by 69% (surface water) and 45% (wastewater). With the dual system (G: 165-200 s −1 ), floc resistance is not impacted.
Best Practices Guidance for the Use of Anionic Polyacrylamide on Construction Sites in Ontario
Cationic (positively charged) Non-ionic (no charge) Organic or inorganic •Organic polymers can be: Natural (e.g. starch, rubber, DNA, proteins) Synthetic (e.g. nylon, teflon, PVC, polyacrylamide) Semi-synthetic (e.g. vulcanized rubber, chitosan)
Synthesis, Characterization, and Flocculation Properties of Branched Cationic Polyacrylamide
24/4/2013 · Synthesis, Characterization, and Flocculation Properties of Branched Cationic Polyacrylamide. Weimin Sun,1 Guangcheng Zhang,1 Ling Pan,1 Helin Li,1 and Aihua Shi1. 1Department of Applied Chemistry, School of Science, Northwestern Polytechnical
Glyoxalated Polyacrylamides G-PAM: additives for enhancing the strength of paper. Giovanna Pellegrini RQ, Axchem® Italia -Stéphan Lafrenière
1/10/2015 · The retention system is provided by Axchem® and it consists of a cationic polyacrylamide powder AXFLOC®AF-904 PG. The next figure shows the average results (based on six rolls tested) before and after the switching between the two G-PAM resins.
Cationic starch flocculants as an alternative to synthetic polymers in geotextile tube dewatering | Geosynthetics International
Dewatering performance of five cationic starch-based polymers with charge densities ranging from 0.38 to 0.94 meq/g and molecular weights ranging from 5 × 10 4 g/mol to 5 × 10 5 g/mol were compared with five cationic acrylamide-based polymers
Reactive Extrusion of Starch–Polyacrylamide Graft Copolymers Using Various Starches
18/3/2006 · Graft copolymers of polyacrylamide and various substrates were prepared by reactive extrusion in a twin screw extruder using ammonium persulfate as initiator. Substrates included unmodified starches (corn, waxy maize, wheat, and potato), cationi
The Use of Cationic Starch-Based Polymers in Geotextile Tube Dewatering Applications. Geosynthetics 2013 — [email protected]
TY – CONF T1 – The Use of Cationic Starch-Based Polymers in Geotextile Tube Dewatering Applications. T2 – Geosynthetics 2013 AU – Bhatia, Shobha K PY – 2013 Y1 – 2013 N2 – ABSTRACT: Polyacrylamide-based conditioners have become an essential
Application of Amphoteric Polyacrylamide Solely or with the Combination of Cationic Starch for Paper Strength Improvement
PEER-REVIEWED ARTICLE bioresources Wang et al. (2018). “AmPAM & cationic starch,” BioResources 13(4), 7864-7872. 7864 Application of Amphoteric Polyacrylamide Solely or with the Combination of Cationic Starch for Paper Strength Improveme
Cationic Polyacrylamide | Scientific.Net
Abstract: A cationic polyacrylamide-grafted starch (St-g-CPAM) flocculant for the coal slurry wastewater, was prepared by using corn starch and acrylamide (AM) as monomers, ethylene methyl propenoyl trimethylammonium chloride (DMC) as cationic m
Application of cationic modified carboxymethyl starch as a retention and drainage aid in wet-end system :: BioResources
"Application of cationic modified carboxymethyl starch as a retention and drainage aid in wet-end system," BioRes. 7(3), 3870-3882. Abstract Waxy maize contains nearly 100% of the branched amylopectin type of starch, which has a simila
Polyacrylamide
Polyacrylamide (abbreviated as PAM) is a polymer with the formula (-CH2CHCONH2-). It has a linear-chain structure. PAM is highly water-absorbent, forming a soft gel when hydrated. In 2008, an estimated 750,000,000 kg were produced, mainly for
Cationic starch flocculants as an alternative to synthetic polymers in geotextile tube dewatering | Geosynthetics International
25/5/2015 · Dewatering performance of five cationic starch-based polymers with charge densities ranging from 0.38 to 0.94 meq/g and molecular weights ranging from 5 × 10 4 g/mol to 5 × 10 5 g/mol were compared with five cationic acrylamide-based polymers
US5990216A – Method for manufacturing grafted polyacrylamide flocculant of cationic/ampholytic ions
The present invention discloses a process for manufacturing a grafted polyacrylamide flocculant of cationic/ampholytic ions, which is characterized by graft-copolymerizing starch or micro-crystalline cellulose as backbone with acrylamide, while
Synthesis of a polyamine-modified starch flocculant and its application
11/5/2021 · Liu W, Liu G (2016) Polyamine cationic polymer modified starch flocculant and preparation method. CN. Patent 105218688[P] 56. Su Y, Du H, Huo Y, Xu Y, Wang J, Wang L, Zhao S, Xiong S (2016) Characterization of cationic starch flocculants synthes
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