• Papermaking - an overview | ScienceDirect Topics

    Pratima Bajpai, in Biermann's Handbook of Pulp and Paper (Third Edition), 2018. Flocculation in the Papermaking System. Flocculation in papermaking chemistry is analogous to coagulation except that a charged polymer is used to either decrease the repulsive forces or act with several particles at one time (bridging) to achieve aggregation. Consider the use of cationic polymers in a solution of ...

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  • Review: nanoparticles and nanostructured materials in ...

    9/12/2017· The introduction of nanoparticles (NPs) and nanostructured materials (NSMs) in papermaking originally emerged from the perspective of improving processing operations and reducing material consumption. However, a very broad range of nanomaterials (NMs) can be incorporated into the paper structure and allows creating paper products with novel properties.

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  • Cationic Flocculants for Paper Making - Sinofloc

    SINOFLOC offer a wide range of powder cationic polyacrylamide, as well as coagulants, to be used on paper mills and wastewater treatment plant.Our polymers are suitable for the functions of different types of paper production: Paper retention aid Fillers, fines, fibers and minerals could be selectively retained in the sheet by optimizing retention.

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  • Allylamine

    Papermaking cationic conductive additives: Textile dyeing auxiliaries Formaldehyde-Free Color-Fixing Leather brightenung and color -fixing agent. Textile antistatic agent: Oilfield auxiliaries Cationic improver of drilling agent Sand control fluid modifier Cationic additive in acid and fracturing fluid

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  • Flocculation, Retention and Drainage in Papermaking: A ...

    In this study, carrageenan was used independently or in combination with cationic polyacrylamide (CPAM) and/or Al2(SO4)3 to explore its application as a dry strength additive in papermaking.

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  • KR100229973B1 - Papermaking process - Google Patents

    The present invention relates to a papermaking process for forming paper products from inorganic fillers comprising cellulosic slurries. Retention performance is provided by sequentially adding cationic charge biasings, anionic flocculants and then certain particulates. The shearing step is carried out between the flocculant addition and the particulate addition step.

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  • Flocculation, Retention and Drainage in Papermaking: A ...

    In this study, carrageenan was used independently or in combination with cationic polyacrylamide (CPAM) and/or Al2(SO4)3 to explore its application as a dry strength additive in papermaking.

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  • Tetraallylammonium chloride(TAAC),Tetraallylammonium ...

    Papermaking cationic retention and drainage aid; Papermaking amphoteric dry strength agent; Color fixing for paper Coating; Papermaking cationic conductive additives; Paper fixative; AKD special emulsifier Cationic Polymer

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  • EP1303667A1 - Use of dispersions of crosslinked cationic ...

    Starch dispersions comprising discrete particles of crosslinked cationic starch in an aqueous liquid can be used in papermaking. They can be used as a wet-end additive or in surface coating. The starch dispersions can be prepared by a process comprise: (a) obtaining a mixture of cationic starch and an aqueous liquid, (b) processing the mixture using shear forces in the presence of a ...

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  • colorless cationic polymer, colorless cationic polymer ...

    Professional HTZ-3 papermaking polymer cationic conductive chemical additives agent Zhejiang Xinhaitian Bio-Technology Co., Ltd. 1 Kilogram (Min. Order)

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  • Papermaking retention and filteration aid polyacrylamide

    Zibo Headquarter Tel : 86-15906242070 Fax: 86-0533-7787288 Email : [email protected] Add :Zhutai Industry Park, Linzi Zone, Zibo City(Chemical. Center of China), Shangdong Province, China

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  • Functional Paper Additives Frictionizing Retention ...

    Functional Paper Additives Paper Frictionizing LUDOX ® colloidal silica can be applied as a clear surface treatment on paper and linerboard products to increase their coefficients of friction. This results in a surface with improved antiskid or antislip properties. Paper rolls are less susceptible to telescoping and paper sheets move through transport rollers more easily.

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  • Fabrication of cellulose/graphene paper as a stable ...

    Mar 15, 2018· Besides, retention aids could improve the retention of other papermaking chemicals, including sizing and cationic starches. In this study, we prepared cellulose/graphene flexible conductive paper through wet end formation, which is a one-step method for preparing cellulose-based paper.

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  • Papermaking cationic retention and drainage aid-Pulp&Paper ...

    Papermaking cationic retention and drainage aid,In the papermaking process, the product can be used to retain the padding, the small fiber, the sizing agent and so on, reduce their loss, and improves the filtration and the dehydration of paper.

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  • Charge Control Chemicals for Papermaking Systems | Buckman

    Most chemical interactions occur at the component surfaces. Colloids often carry an electrical charge on their surfaces that results from the presence of anionic, or cationic groups. Because most molecular interactions in paper machine stock systems are surface-charge interactions, chemical additives must be carefully selected.

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  • Cationic Dispersant, Cationic ... - Harmony Additive

    Additive 4137 & 4137-CS : We have been into the market of additives serving the paint and ink industries with our formulated effective Cationic Dispersant. These additives are widely used for decorative industrial paints & for those pigments that are difficult to disperse.

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  • Papermaking Process Additives - Wet End Chemistry

    Nov 07, 2017· Chemical additives are used in the papermaking process for many different reasons, and they are often divided into two groups. Functional chemicals directly improve properties of the sheet, while process chemicals affect operations on or near the paper machine. This module covers the second group - process chemicals.

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  • Background

    "Highly conductive carbon nanotubes and flexible cellulose nanofibers composite membranes with semi-interpenetrating ... cationic starch and paper strength," Appita J. 72(2), 82-93 ... "Handling, dilution, and pumping of papermaking additives," in: Advances in Papermaking Wet End Chemistry Application Technologies, M. A ...

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  • Fabrication of cellulose/graphene paper as a stable ...

    Mar 15, 2018· Besides, retention aids could improve the retention of other papermaking chemicals, including sizing and cationic starches. In this study, we prepared cellulose/graphene flexible conductive paper through wet end formation, which is a one-step method for preparing cellulose-based paper.

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  • Mini-Encyclopedia of Papermaking Wet-End Chemistry

    Mini-Encyclopedia of Papermaking Wet-End Chemistry Additives and Ingredients, their Composition, Functions, Strategies for Use. POLYETHYLENE IMINE (PEI) Composition: The monomer is easy to describe. It consists of a three-membered ring. Two corners of the molecule consist of -CH2- linkages. The third corner is a secondary amine group, =NH.

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  • Effect of chemical additives on Z-direction filler ...

    It is well known that paper properties such as opacity, printing quality, brightness, and roughness are affected by the z-direction mineral filler distribution. In this study, the effect of four different parameters (filler, starch, chemical retention aids and the machine parameter (vacuum)), on the z-direction filler distribution in paper samples was investigated. Paper samples were made ...

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  • US5178730A - Paper making - Google Patents

    A process for improving art chemistry in papermaking is accomplished by the addition of a cationic polymer and natural hectorite to the furnish prior to headbox. The cationic polymer has an intrinsic viscosity in the range of 5 to 25 dl/g and a charge density of 0.78 to 5 equivalent cationic nitrogen per Kg. The natural hectorite is added in an amount of 0.5 to 6 lbs/ton dry base sheet and the ...

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  • Paper Dictionary

    A. A4 (size) A common ISO A-size of about 8-1/4 by 11-3/4 inches or 210 x 297mm. For all sizes see International Paper and Board Sizes. Abaca A fiber also known as manila hemp or manila fiber, prepared from the outer sheath of the stems of manila.

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  • The Benefits of Cationic Starches for the Paper Industry ...

    Cationic starches are widely used as wet end additives in paper making. They provide many benefits, classified into 4 categories: improvement of mechanical strength; better retention of fines and fillers; faster drainage; reduction of waste water pollution.

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  • Cationic polymer modified products

    Cationic polymer products include: Poly(Dimethyl diallyl ammonium Chloride) (Polydadmac), polyamine, Poly(allylamine hydrochloride), polyacrylamide emulsion, paper fixing agent, retention and drainage aids, surface sizing agent, dry / wet strength agent, etc.

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  • Functional Papermaking Additives - Convergence Pulp ...

    Chemical additives are used in the papermaking process for many different reasons, and they are often divided into two groups. Functional chemicals directly improve properties of the sheet, while process chemicals affect operations on or near the paper machine.

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  • Papermaking cationic retention and drainage aid-Pulp&Paper ...

    Papermaking cationic retention and drainage aid,In the papermaking process, the product can be used to retain the padding, the small fiber, the sizing agent and so on, reduce their loss, and improves the filtration and the dehydration of paper.

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  • Preparation of Antibacterial Cellulose Paper Using Layer ...

    12/23/2017· In contrast to poly(l-lysine), which is synthesized by chemists, ε-PL is a natural cationic biopolymer produced by the bacterium Streptomyces albulus . ε-PL is also water-soluble, biodegradable, edible, and has been reported to have a wide antibacterial spectrum against yeasts, molds, and Gram-positive and Gram-negative bacterial species [44 ...

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  • Paper making - Delta, Chemicals

    A paper making process according to claim 1, wherein said low molecular weight cationic polymer has a change density of from 0.5 to 3.5 equivalents of nitrogen per kg polymer. 5. A paper making process according to claim 1, wherein said medium/high molecular weight cationic polymer is a tertiary or quaternary amine derivative of polyacrylamide.

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  • Preparation, application, and mechanism of starch .

    Afterwards, a cationic macromolecule with a terminal group of C=C was formed (Formula 6). Finally, the graft copolymerization of starch and cationic macromolecule with terminal group C=C was initiated under the action of initiator (Formula 7). The principle of the reaction is shown in Fig. 1. (Formula 1) (Formula 2) (Formula 3) (Formula 4)

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  • Cationic additive in acid and fracturing fluid-Oilfield ...

    Wastewater decolorant [papermaking&dye print] High efficient oil-water separator agent; Pulp&Paper chemicals. AKD sizing promoter; Anionic trash catcher; Papermaking cationic retention and drainage aid; Papermaking amphoteric dry strength agent; Color fix resin for paper Coating; Papermaking cationic conductive additives; Damage recycling dry ...

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  • Unprecedented Improvement of Single Li‐Ion Conductive ...

    The characterization results show that a small dose of electrolyte additive (2 wt%) substantially increases the ionic conductivity of single Li‐ion conductive SPEs as well as the interfacial compatibility between electrode and SPE, allowing the cycling of SPE‐based cells with good electrochemical performance.

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About us

Founded in 1982, Dekelon Paper Making Machinery Co.,Ltd. has always striven to meet and exceed customer expectations and continue to update and improve...

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