Home » Solid Particle Type Temperature-Resistant Salt-Resistant Polyacrylamide for Papermaking Retention And Filter Aid in Malta

Solid Particle Type Temperature-Resistant Salt-Resistant Polyacrylamide for Papermaking Retention And Filter Aid in Malta

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(PDF) Effects of charge density and molecular weight of ...

(PDF) Effects of charge density and molecular weight of ...

Median particle sizes of GCC aggregates induced by the C-PAMs with different initial charge densities at pH levels of 7 (a), 8 (b) and 9 (c). …
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Preparation and synthesis of magnetic fibers ...

Preparation and synthesis of magnetic fibers ...

Apr 02, 1991 · Addition of retention aids took place in two ways: before lumen-loading, using up to 0.5 g/l alum; after lumen-loading, polyethylenimine (PEI polymin SK Trade-Mark of BASF) was used as retention aid. The post-treatment with PEI was 0-4% weight/weight polymer on pulp and was carried out at pH of.
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Synthesis, characterization and application of a novel ...

Synthesis, characterization and application of a novel ...

It is widely used in the wet end of papermaking. It can be used as reinforcement, retention aid, and filter aid to significantly improve the quality of paper, reduce consumption, and save cost (27 ...
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Green Synthesis of Gold Nanoparticles Using Plant Extracts ...

Green Synthesis of Gold Nanoparticles Using Plant Extracts ...

Oct 22, 2021 · For metal salt solution HAuCl 4, AgNO 3 generally is mixed with plant extract at room temperature [33,75]. Plant extracts contain various metabolites or organic compounds (alkaloids, flavonoids, proteins, polysaccharides, cellulose, and phenolic compounds) and secondary metabolites, which are utilized for nanoparticle synthesis [ 76 ].
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US6710175B2 - Compositions suitable as additives in the ...

US6710175B2 - Compositions suitable as additives in the ...

Salt-free solutions of such polymers can be prepared, for example, from the salt-containing solutions which for instance are obtained by hydrolysis of N-vinylformamide units containing polymers with acids such as hydrogen chloride or sulfuric acid, with the aid of ultrafiltration through suitable membranes with separation limits of, for example ...
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A review on production of lignin-based flocculants ...

A review on production of lignin-based flocculants ...

Dec 01, 2020 · It is highly stable at room temperature, non-flammable, lowly toxic, unaffected by hydrolysis, and can be used as an aldehyde-free color fixing agent in textile printing and dyeing, as a retention filter aid in papermaking, and as an antistatic agent in paper coatings [, , ].
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Suggested Readings in Papermaking Chemistry, By ... - NCSU

Suggested Readings in Papermaking Chemistry, By ... - NCSU

RETENTION. Wagberg and Lindstrom have shed light on the mechanism of dual-polymer retention aid programs (Nordic Pulp Paper Res. J. 2, 2: 49, 1987). This type of system involves treating the furnish first with a moderate-mass, high-charged cationic polymer such as a polyamine (e.g. dimethylamine-epichlorohydrin condensation product), and then ...
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Student_work - NCSU

Student_work - NCSU

The other major component of the microparticle retention aid system is a cationic additive or combination of additives [1]. Typically the cationic additive is a cationic starch or cationic polyacrylamide, but may include cationic guar gum, alum, or a low molecular weight high charge density cationic coagulant [1, 2].
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Flocculation of PCC filler in papermaking: Influence of ...

Flocculation of PCC filler in papermaking: Influence of ...

Results showed that when 0.03% cationic polyacrylamide (CPAM) was used as retention aid, tensile index of handsheets using agar (3%, based on …
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A comprehensive review on incredible renewable carriers as ...

A comprehensive review on incredible renewable carriers as ...

Jan 15, 2021 · 2.1. Natural organic biopolymers as carriers2.1.1. Chitosan. During the last few decades, many scholars have focussed on the bioactive properties of chitosan which is a linear mucopolysaccharide consists of β-(d-glucosamine) and N-acetyl-d-glucosamine units and can be naturally derived from exoskeletons of insects, beaks of cephalopods, arthropods such as …
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Review: nanoparticles and nanostructured materials in ...

Review: nanoparticles and nanostructured materials in ...

The type of mixing nanocellulose additives into the paper composition plays an important role in the efficiency of the strength additive: (1) it can be directly mixed into the pulp, (2) it can be premixed with a certain component such as the filler or long fiber fraction and deposited on their surfaces by retention aids, or (3) it can be pre ...
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Enhanced barrier performance of cellulosic wood fiber ...

Enhanced barrier performance of cellulosic wood fiber ...

Cellulose is an abundant material, which is widely used in papermaking. It is both a biodegradable and sustainable material. However, its hydrophilic nature may limit its applications in specific and novel areas such as waterproof packaging and paper based microfluidics. In this thesis, three different routes are followed to render the surface of the paper superhydrophobic. First, …
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CA2987773A1 - Drilling fluids and methods of use - Google ...

CA2987773A1 - Drilling fluids and methods of use - Google ...

Drilling fluid compositions methods of using them are described. The drilling fluid compositions comprise nanocomposites comprising core-shell morphology, wherein the core material comprises a nanoparticle having an average particle size of about 5 nm to 100 nm, and the shell material comprises a crosslinked polymer comprising acrylamide repeat units.
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EP0325852A2 - Kaolin slurry, its preparation, and ...

EP0325852A2 - Kaolin slurry, its preparation, and ...

EP0325852A2 EA EA EP0325852A2 EP 0325852 A2 EP0325852 A2 EP 0325852A2 EP A E A EPA EP A E A EPA EP 0325852 A2 EP0325852 A2 EP 0325852A2 Authority EP European Patent Office Prior art keywords clay bulked water dispersant slurry Prior art date-25 Legal status …
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Transfer and degradation of polyacrylamide-based ...

Transfer and degradation of polyacrylamide-based ...

Sep 26, 2014 · The aim of this review was to summarize information and scientific data from the literature dedicated to the fate of polyacrylamide (PAM)-based flocculants in hydrosystems. Flocculants, usually composed of PAMs, are widely used in several industrial fields, particularly in minerals extraction, to enhance solid/liquid separation in water containing suspended matter. …
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(PDF) Polyelectrolyte coagulant and flocculant effects on ...

(PDF) Polyelectrolyte coagulant and flocculant effects on ...

diffraction particle size analysis, the present article considers the effect of polyelectrolyte 103 treatments in fibre-free suspensions of cellulosic fines, with or without the further
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oil drilling chemicals anionic polyacrylamide temperature ...

oil drilling chemicals anionic polyacrylamide temperature ...

Temperature-Salt-Resisting Polyacrylamide for Oil Drilling. Temperature-salt-resisting Polyacrylamide Brief introduction Temperature-salt-resisting Polyacrylamide is developed for the sewage in EOR (Enhanced oil recovery), it can help use sewage recycle and protect environment. .anionic polyacrylamide for oil drilling chemicals | chemical .
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High molecular weight polyacrylamide nanoparticles ...

High molecular weight polyacrylamide nanoparticles ...

The temperature/salt resistance of CPAME-uhc can be improved by adding 2 wt% N,N-dimethylacrylamide, 2 wt% N-vinylpyrrolidone, and 5 wt% sodium 2-acrylamide-2-methylpropionate, based on the total ...
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US4250269A - Water-soluble mixtures of quaternary ammonium ...

US4250269A - Water-soluble mixtures of quaternary ammonium ...

Water-soluble polymeric mixtures prepared by mixing 1 to 10 parts by weight of a quaternary ammonium polymer with 0.5 to 7 parts by weight of a high molecular weight nonionic and/or cationic vinyl-addition polymer, and 0.1 to 5 parts by weight of a nonionic and/or cationic surfactant have utility in many diverse applications.
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New insights in pectinase production development and ...

New insights in pectinase production development and ...

Nov 30, 2021 · Pectinase, a group of pectin degrading enzymes, is one of the most influential industrial enzymes, helpful in producing a wide variety of products with good qualities. These enzymes are biocatalysts and are highly specific, non-toxic, sustainable, and eco-friendly. Consequently, both pectin and pectinase are crucially essential biomolecules with extensive …
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Bromophenol blue | C19H10Br4O5S - PubChem

Bromophenol blue | C19H10Br4O5S - PubChem

Bromophenol blue is 3H-2,1-Benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 3,5-dibromo-4-hydroxyphenyl groups. It is used as a laboratory indicator, changing from yellow below pH 3 to purple at pH 4.6, and as a size marker for monitoring the progress of agarose gel and polyacrylamide gel electrophoresis. . It has also …
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Shijiazhuang Kunmai Chemical Technology Co., Ltd ...

Shijiazhuang Kunmai Chemical Technology Co., Ltd ...

Translucent white flaky solid, caustic soda is a basic chemical raw material, widely used in papermaking, synthetic detergent and soap, viscose fiber, rayon and cotton textiles and other light and textile industry, pesticides, dyes, rubber and chemical industry, petroleum drilling, refining petroleum grease and tar oil refining industry and the defense industry, machinery industry, …
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Filtration Efficiency - an overview | ScienceDirect Topics

Filtration Efficiency - an overview | ScienceDirect Topics

Irwin M. Hutten, in Handbook of Nonwoven Filter Media, 2007 6.13.1.15 Filtration efficiency, bacterial filtration efficiency, and viral filtration efficiency. Particle filtration efficiency (PFE), bacteria filtration efficiency (BFE) and viral filtration efficiency (VFE) are tests are set up to evaluate surgical face mask and other medical filtration materials (see Chapter 8, Section 8.42).
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Fillers for papermaking: A review of their properties ...

Fillers for papermaking: A review of their properties ...

Full Article. Fillers for Papermaking: A Review of their Properties, Usage Practices, and their Mechanistic Role. Martin A. Hubbe,*,a and Robert A. Gill b Issues of cost and product quality have caused papermakers to place increased attention on the use of mineral additives, which are the subject of this review article.
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