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2021-7-7 · Full Article. A CATIONIC POLYACRYLAMIDE DISPERSION SYNTHESIS BY DISPERSION POLYMERIZATION IN AQUEOUS SOLUTION. Yufeng Wang, a,b, * Kefu Chen, a Lihuan Mo, a,* and Huiren Hu c A cationic polyacrylamide (CPAM) dispersion, the copolymer of acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride (DAC), has been synthesized through dispersion …
Get Price2017-3-15 · Another cationic polyacrylamide with intrinsic viscosity of 4.2 dL g −1 was synthesized in 120 min from aqueous photo-polymerization; a 200-W high-pressure mercury lamp was used in polymerization . Moreover, these studies also reported the improvement in …
Get Price@article{Liu2018SynthesisOA, title={Synthesis of a cationic polyacrylamide by a photocatalytic surface-initiated method and evaluation of its flocculation and dewatering performance: nano-TiO2 as a photo initiator}, author={Y. Liu and Huaili Zheng and Y. Wang and Xinyu Zheng and Moxi Wang and J. Ren and Chuanliang Zhao}, journal={RSC Advances ...
Get Price2017-4-27 · Fourier Transform Infrared Spectroscopy (FTIR) of polyacrylamide showed strong absorption at wave number 1655 cm-1 due to the presence of a primary amide band which is used to distinguish true polyacrylamide from the alternative polymerization product poly(βalanine) which has instead a secondary amide band at 1555 cm-1(4). The band for (N—H) stretching vibration appears at 3448 cm-1 of the …
Get Price2019-11-15 · The cationic polyacrylamide flocculant (CPAM) has been extensively used in oil sludge treating agents due to its excellent turbidity removal, flocculation and decolorization properties . Because the oil sludge particles are negatively charged, CPAM electricity neutralization and adsorption bridging with the oil sludge particles, which lead to ...
Get Price2020-8-5 · The thermal decomposition behavior of polyacrylamide poly (methacryloyloxyethyl trimethylammonium chloride-acrylamide) (P(DMC-AM)) was studied by means of TG and DSC under nitrogen atmosphere at temperature range of 323.15–823.15 K. The effect of cationicity on thermal stability was discussed. The TG/DSC curves indicated that the decomposition process of P(DMC-AM) …
Get Price2018-9-7 · High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and …
Get Price2021-7-13 · Full Article. A CATIONIC POLYACRYLAMIDE DISPERSION SYNTHESIS BY DISPERSION POLYMERIZATION IN AQUEOUS SOLUTION. Yufeng Wang, a,b, * Kefu Chen, a Lihuan Mo, a,* and Huiren Hu c A cationic polyacrylamide (CPAM) dispersion, the copolymer of acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride (DAC), has been synthesized through dispersion …
Get PriceFTIR spectra and fractal dimension of flocs after flocculation were measured. ... In current research, the flocculation performance of cationic polyacrylamide flocculant PAMC with high cationic degree was investigated in HA synthetic water treatment, and the effect of kaolin particles was studied in kaolin-HA flocculation. Influencing factors ...
Get Price2003-8-4 · The copolymer P(AM-co-4VP) of acrylamide (AM) and 4-vinylpyridine (4VP) was synthesized by radical copolymerization in solution, and then the copolymer was quaternarized using dimethyl sulfate to produce cationic P(AM-co-4VP) (CPAV), a cationic polyacrylamide containing quaternary pyridine salt. Two series of CPAV have been synthesized.
Get Price2003-8-4 · The copolymer P(AM‐co‐4VP) of acrylamide (AM) and 4‐vinylpyridine (4VP) was synthesized by radical copolymerization in solution, and then the copolymer was quaternarized using dimethyl sulfate to produce cationic P(AM‐co‐4VP) (CPAV), a cationic polyacrylamide containing quaternary pyridine salt. Two series of CPAV have been synthesized.
Get Price@article{Liu2018SynthesisOA, title={Synthesis of a cationic polyacrylamide by a photocatalytic surface-initiated method and evaluation of its flocculation and dewatering performance: nano-TiO2 as a photo initiator}, author={Y. Liu and Huaili Zheng and Y. Wang and Xinyu Zheng and Moxi Wang and J. Ren and Chuanliang Zhao}, journal={RSC Advances ...
Get PriceAbstract: In order to improve the aqueous solutions viscosity and flocculation performance of cationic polyacrylamide, organic montmorillonite was added into polymerization system of polyacrylamide, the cationic polyacrylamide/dimethyl diallyl ammonium chloride/organic montmorillonite (CPAM/DMDAAC/MMT) nanocomposite was prepared by aqueous two-phase polymerization method.
Get Price2019-11-15 · The cationic polyacrylamide flocculant (CPAM) has been extensively used in oil sludge treating agents due to its excellent turbidity removal, flocculation and decolorization properties . Because the oil sludge particles are negatively charged, CPAM electricity neutralization and adsorption bridging with the oil sludge particles, which lead to ...
Get Price2021-5-15 · The cationic monomers on these microblock segments can be polymerized to form a CPAMD with a new cationic microblock structure. In addition, microwave has mechanical effects such as oscillation, emulsification, and diffusion, which can accelerate the heat and mass transfer process of the reaction system, thus accelerating the reaction rate (Wiesbrock et al. 2004; Hoogenboom and …
Get PriceUltrasonic Assisted Synthesis of Cationic Polyacrylamide and Its Dewatering performance evaluation Xiang Li1*, a, Baojun Yang2, b, Qianying Shou3, c, Guoming Zeng1, d, Pei Wu1, e 1 School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, China 2 Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of
Get PriceContact us: From us, you can easily purchase Cationic Polyacrylamide at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at [email protected] We invite you to contact us …
Get Price2003-8-4 · The copolymer P(AM-co-4VP) of acrylamide (AM) and 4-vinylpyridine (4VP) was synthesized by radical copolymerization in solution, and then the copolymer was quaternarized using dimethyl sulfate to produce cationic P(AM-co-4VP) (CPAV), a cationic polyacrylamide containing quaternary pyridine salt. Two series of CPAV have been synthesized.
Get Price2003-8-4 · The copolymer P(AM‐co‐4VP) of acrylamide (AM) and 4‐vinylpyridine (4VP) was synthesized by radical copolymerization in solution, and then the copolymer was quaternarized using dimethyl sulfate to produce cationic P(AM‐co‐4VP) (CPAV), a cationic polyacrylamide containing quaternary pyridine salt. Two series of CPAV have been synthesized.
Get Price2021-6-3 · The FTIR and 1 H NMR spectra further confirmed CS-DMCs and CS-DMLs were ... Y. et al. UV-initiated polymerization of hydrophobically associating cationic polyacrylamide modified by a surface ...
Get PriceThe cationic polyacrylamide with a molecular weight (170 X10 3 g mol-1) is also effective flocculent only at high dosage as it is required 200 mg L-1 to obtain 99% turbidity removal, 98% SS removal and 60% COD removal. • By increasing the molecular weight of cationic polyacrylamide to (550X10 3 g mol-1) the removal efficiency % will also ...
Get Price2021-3-12 · HMPA Copolymer Characterization. FTIR and 1H NMR Analyses. The FTIR spectrum of the synthesized HMPA copolymer is depicted in Figure 1. The peaks at 1632 and 3430 cm−1 are assigned to C O and N−H stretching vibrations of the −CONH 2 group, respectively. These peak characteristics established the presence of the acrylamide group in ...
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Get Price2018-4-19 · Three types of cationic polyacrylamide (CPAM) with different charge density were used for flocculation of gelatinized starch solution. The flocculation performance was evaluated in terms of the amylose removal ratio (AMRR), the amylopectin removal ratio (APRR), total starch removal ratio (TSRR) and supernatant turbidity (ST).
Get Price2021-6-20 · Full Article. Synthesis and Application of a Cationic Polyacrylamide Dry Strength Agent with Anionic Content. Guangyan Wang and Yi Jing* A new net-cationic polyacrylamide dry strength agent was synthesized through free radical polymerization using acrylamide (AM), itaconic acid (IA), N,N-dimethylacrylamide (F), and sodium methallyl sulfonate (T).
Get PriceContact us: From us, you can easily purchase Cationic Polyacrylamide at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at [email protected] We invite you to contact us …
Get PriceA cationic polyacrylamide (CPAM) dispersion, the copolymer of acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride (DAC), has been synthesized through dispersion polymerization in aqueous ammonium sulfate ((NH4)2SO4) solution.
Get Price2013-12-24 · 3.4. FTIR Spectrum. Figure 2 shows the FTIR spectrum of P (AM-DMDAAC-BA). The absorption bands observed at 3428.07 cm −1 and 1167.45 cm −1 were originated from strong stretching vibration of amino group and carbonyl group of amide in the AM chain, respectively.
Get Price2003-1-1 · Synthesis and properties of cationic polyacrylamide containing pyridine quaternary salt Synthesis and properties of cationic polyacrylamide containing pyridine quaternary salt Gao, Baojiao; Lv, Yuexian; Jiu, Hongfang 2003-01-01 00:00:00 INTRODUCTION Among the many water‐soluble polymers available, copolymers and homopolymers based on acrylamide (AM) are widely used in many fields …
Get Price2020-1-14 · Key words: Dispersion polymerization, cationic polyacrylamide microspheres, profile modification, permeability reduction Preparation of cationic polyacrylamide microsphere emulsion and its performance for permeability reduction *Corresponding author. email: [email protected] Received February 13, 2014
Get Price2020-8-30 · Ability for Cationic and Anionic Dyes Removal Bouthaina Othmani 1, José A. F. Gamelas 2, ... Fourier transform infrared (FTIR) spectroscopic analysis and the chemical characterization of cactus formulations, the occurring flocculation mechanisms of the dye removal are presumed to be based ... (polyacrylamide). Hence, it was suggested
Get PriceMade in South Africa Cationic Polyacrylamide Flocculants Directory - Offering Wholesale South African Cationic Polyacrylamide Flocculants from South Africa Cationic Polyacrylamide Flocculants Manufacturers, Suppliers and Distributors at TradeKey.com
Get Price2020-6-18 · Cationic polyacrylamides have been widely used as retention aids in papermaking, as flocculants for wastewater and suspension, etc. In the past decade, many researchers have taken up interest in hydrophobically modified and cationic polyacrylamide. These hydrophobically cationic polymers exhibited excellent flocculating properties and unique
Get Price2021-6-20 · Full Article. Synthesis and Application of a Cationic Polyacrylamide Dry Strength Agent with Anionic Content. Guangyan Wang and Yi Jing* A new net-cationic polyacrylamide dry strength agent was synthesized through free radical polymerization using acrylamide (AM), itaconic acid (IA), N,N-dimethylacrylamide (F), and sodium methallyl sulfonate (T).
Get PriceA cationic polyacrylamide (CPAM) dispersion, the copolymer of acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride (DAC), has been synthesized through dispersion polymerization in aqueous ammonium sulfate ((NH4)2SO4) solution.
Get PriceIn order to improve the aqueous solutions viscosity and flocculation performance of cationic polyacrylamide, organic montmorillonite was added into polymerization system of polyacrylamide, the cationic polyacrylamide/dimethyl diallyl ammonium chloride/organic montmorillonite (CPAM/DMDAAC/MMT) nanocomposite was prepared by aqueous two-phase polymerization method.
Get Price2003-1-1 · Synthesis and properties of cationic polyacrylamide containing pyridine quaternary salt Synthesis and properties of cationic polyacrylamide containing pyridine quaternary salt Gao, Baojiao; Lv, Yuexian; Jiu, Hongfang 2003-01-01 00:00:00 INTRODUCTION Among the many water‐soluble polymers available, copolymers and homopolymers based on acrylamide (AM) are widely used in many fields …
Get PriceOil Drilling Anionic Cationic Nonionic Pam Polyacrylamide. oil drilling anionic cationic nonionic pam polyacrylamide apam Polyacrylamide, abbr. PAM, is a kind of water soluble polymer, has unique effect to increase the viscosity of water or to promote the flocculation of particles present in water, it can also reduce the frictional resistance between the liquid.
Get Price2021-6-28 · Cationic Polyacrylamide is a white granule and it is a linear high molecular compound which is soluble in water. It is non-toxic and odorless, easily absorbs moisture, is insoluble in ethanol, acetone and other organic solvents, has positive charge active groups on molecular chains, and has excellent flocculation effect.
Get Price2020-6-18 · Cationic polyacrylamides have been widely used as retention aids in papermaking, as flocculants for wastewater and suspension, etc. In the past decade, many researchers have taken up interest in hydrophobically modified and cationic polyacrylamide. These hydrophobically cationic polymers exhibited excellent flocculating properties and unique
Get Price2013-8-21 · Abstract. Abstract: A novel flocculant based on hybrid coal gangue-polyacrylamide (HCGPAM) has been prepared by using modified coal gangue and polyacrylamide. Factors related to the preparation such as reaction time, temperature, concentration of the polymer monomer and ratio of initiators are investigated.
Get Price2019-9-4 · 1 Article 2 Production of Cationic Polyacrylamide Flocculant 3 P(AM–DMDAAC) by Microwave Assisted Synthesis, 4 its Characterization and Flocculation Perfomance 5 Peng Zhang*, Dongqin Zhao, Xue Zhang 6 School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, China2 7 Affiliation 2; [email protected] 8 * Correspondence: [email protected]; …
Get PriceName:PAM Anionic Polyacrylamide 1.CAS NO 9003-05-8 HS Code 3906901000 2.EINECS No 201-173-7 3.MF [CH2=CHCONH2]n 4.appearance white crystal powder 5.Specification: Polyacriylamide Anionic PAM 5-8 million Molecular weight:5-8 million Solid content:Solid content Free monomer:0.025% max Dissolving time :1h max Water Insolubles:0.3% max Hydrolyzing degree:20~30% Size:20-100mesh …
Get Price2014-10-14 · [12] X.X. Teng, W. Ma, S.F. Zhang, Application of tertiary amine cationic polyacrylamide with high cationic degree in salt-free dyeing of reactive dyes, Chin. J. Chem. Eng. 18 (2010) 1023-1028. [13] R.S. Blackburn, S.M. Burkinshaw, Treatment of cotton with cationic, nucleophilic polymers to enable reactive dyeing at neutral pH without electrolyte addition, J. Appl. Polym.
Get PriceIn this paper, a microparticle system consisting of cationic polyacrylamide (CPAM) and anionic spherical polyelectrolyte brushes (ASPB) is proposed to improve the retention of pulp suspension containing bleached reed kraft pulp and precipitated calcium carbonate (PCC). We first describe the preparat …
Get PriceAnionic/Cationic PAM|Polyacrylamide Polymer. 2014-10-16 · There are two types of polyacrylamide: APAM anionic polyacrylamide, CPAM cationic polyacrylamide. APAM Aniocic polyacrylamide Introduction: Anionic polymer flocculant is mainly used for the treatment of solid minerals in the neutral suspension. Get Price
Get Price23 小时前 · 1.2.3 Anionic Polyacrylamide (APAM) 1.2.4 Cationic Polyacrylamide (CPAM) 1.2.5 Others 1.3 Polyacrylamide Polymer Segment by Application 1.3.1 Global Polyacrylamide Polymer Consumption Comparison by Application: 2016 VS 2021 VS 2027 1.3.2 Water Treatment 1.3.3 Paper & Pulp 1.3.4 Oil & Gas Extraction 1.3.5 Mining 1.3.6 Paints & Coasting 1.3.7 ...
Get PriceImpact of Counter Ions of Cationic Monomers on the Production and Characteristics of Chitosan-Based Hydrogel
Get Price2003-1-1 · Synthesis and properties of cationic polyacrylamide containing pyridine quaternary salt Synthesis and properties of cationic polyacrylamide containing pyridine quaternary salt Gao, Baojiao; Lv, Yuexian; Jiu, Hongfang 2003-01-01 00:00:00 INTRODUCTION Among the many water‐soluble polymers available, copolymers and homopolymers based on acrylamide (AM) are widely used in many fields …
Get Price2015-2-13 · cationic polymer doped iron oxide nanoparticles at in vitro level. Magnetic iron oxide nanoparticles were prepared in simple procedure and then doped with polyacrylamide (PAM). The antimicrobial activity of cationic polymer doped iron oxide nanoparticles was evaluated. The prepared polyacrylamide ... (FTIR) spectroscopy by PerkinElmer Spectrum ...
Get Price2018-12-7 · Cationic polyacrylamide is one kind of high effi-ciency emulsified flocculants with high concen-tration, cationic polyacrylamide main uses: (a) as paper retention [3]; (b) as water treatment chemical [4]. It is widely applied in improving the flocculation effect in the sludge dewatering processes like belt filtration and centrifugal
Get Price2014-6-26 · Two cationic polyacrylamides, PAA and PAD, were synthesized for sludge dewatering. The advanced instruments such as 1H NMR, FTIR, and SEM were used to characterize the two copolymers. Their hydrophobic association properties in water were investigated by viscosimetry as well as the dewatering performance studied by the sludge dewatering experiment.
Get Price2016-5-1 · Abstract Water-soluble polymer, cationic poly(N-(3-hexyldimethyl-aminopropyl) methacrylamide bromide) (PHDAPMAA), is synthesized by radical polymerization and studied in terms of its solubility, viscosity, surface tension and conductivity. Viscometry and surface tension measurements confirmed that intramolecular hydrophobic microdomains were formed by the pendent alkyl chains. …
Get Price2013-7-26 · (2014). Integrated synthesis and characterization of some porous polyacrylamide-based composites for cationic sorption from aqueous liquid wastes. Desalination and Water Treatment: Vol. 52, No. 34-36, pp. 6802-6816.
Get Price2013-12-24 · A 500 FTIR Spectrophotometer (Nicolet, USA) was used and the potassium bromide (KBr) pellet method was used for FTIR study. The FTIR spectrum of cationic flocculation DXSL-I, alkalized CP and CP were collected separately.
Get Price2019-12-12 · Simultaneous thermal analysis of cationic, nonionic and anionic polyacrylamide. Annett Steudel. Annett Steudel. Affiliations. Ruhr Universität Bochum (RUB), Chair of Soil Mechanics, Foundation Engineering and Environmental Geotechnics, Universitätsstraße 150, 44780, Bochum, Germany. Search for articles by this author.
Get Price2012-2-15 · Characterization of Cationic Polyacrylamide-Grafted Starch Flocculant Synthesized_农林牧渔_专业资料 by One-Step Reaction Jianping Cao,1,2,3 Sheng Zhang,1,2,3 Baoli Han,2 Qingli Feng,1,3 Lan fang Guo2 1 Key Laboratory of Carbon Fiber and
Get PriceSynthesis and Characterization of Hydrophobically Modified Cationic Polyacrylamide with Low Concentration of Cationic Monomer. Journal of Macromolecular Science, Part A, 2009. Khai Ern Lee. Download PDF. Download Full PDF Package. This paper. A short summary of this paper.
Get PriceKeywords: Cationic polyacrylamide, Colloid titration, Cationic degree; Sludge dewatering. Asian Journal of Chemistry; Vol. 26, No. 22 (2014), 7544-7550 negative char ge, cationic pol yacr ylamide f locculants w ere used widel y in municipal wastewater treatment plants for sludge dewatering6-7. Ca tionic f locculants ha ve se veral ob vious ad van-
Get Price2018-7-26 · The p (AM-DMDAAC) was synthesized by aqueous copolymerization of acrylamide (AM) and dimethyldiallylammonium chloride (DMDAAC) using complex initiation …
Get PriceSynthesis and Application of a Cationic Polyacrylamide Dry Strength Agent with Anionic Content A new net-cationic polyacrylamide dry strength agent was synthesized through free radical polymerization using acrylamide (AM), itaconic acid (IA), N,N-dimethylacrylamide (F), and sodium methallyl sulfonate (T).
Get PriceTwo, cationic polyacrylamide Cationic polyacrylamide in acidic or alkaline media showed positive electricity, it usually is lower than the molecular weight of anionic or non-ionic polyacrylamide, the performance of the Chengcheng clean sewage is mainly obtained by charge neutralization.
Get Price2019-9-4 · 1 Article 2 Preparation, characterization, and sludge 3 conditioning of cationic polyacrylamide synthesized 4 by a novel UV-initiated system 5 6 Qingqing Guan1，*, Guocheng Zhu 2, Yi Liao c, Jin Xu 1, Xiaoxu Sun 1, Fang Tian 1, Jiaxing Xu 1 7 and Minghan Luo 1 8 1 Department of the Environmental Engineering, Nanjing Institute of Technology, 1 Hongjing Avenue,
Get Price2021-6-1 · Polyacrylamide and its co-polymers are used as flocculants or coagulants in industrial wastewater treatment .Homo-polymer is used in this application and can be either nonionic, cationic or anionic depending on the types of wastewater needs to be treated.
Get Price2019-12-12 · Simultaneous thermal analysis of cationic, nonionic and anionic polyacrylamide. Annett Steudel. Annett Steudel. Affiliations. Ruhr Universität Bochum (RUB), Chair of Soil Mechanics, Foundation Engineering and Environmental Geotechnics, Universitätsstraße 150, 44780, Bochum, Germany. Search for articles by this author.
Get Price2016-5-1 · Abstract Water-soluble polymer, cationic poly(N-(3-hexyldimethyl-aminopropyl) methacrylamide bromide) (PHDAPMAA), is synthesized by radical polymerization and studied in terms of its solubility, viscosity, surface tension and conductivity. Viscometry and surface tension measurements confirmed that intramolecular hydrophobic microdomains were formed by the pendent alkyl chains. …
Get PriceFTIR analysisThe FTIR spectra of glycogen, cationic glycogen 4 and N-(3-chloro-2-hydroxypropyl) trimethyl ammonium chloride are shown in Fig. 2a-c, respectively.The broad band (Fig. 2a) at 3397 cm −1 is due to the stretching mode of the O H groups. An intense band at 1656 cm −1 is for the first overtone of O H bending vibration.
Get Price2017-7-27 · materials Article Effect of the Cationic Block Structure on the Characteristics of Sludge Flocs Formed by Charge Neutralization and Patching Huaili Zheng 1,3, Li Feng 1,3,*, Baoyu Gao 2, Yuhao Zhou 1,3, Shixin Zhang 1,3 and Bingchen Xu 1,3 1 Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; …
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