China Cationic Polyacrylamide for Pulp Retention for Paper Mills
China Cationic Polyacrylamide for Pulp Retention for Paper Mills
China Cationic Polyacrylamide for Pulp Retention for Paper Mills
China Cationic Polyacrylamide for Pulp Retention for Paper Mills
China Cationic Polyacrylamide for Pulp Retention for Paper Mills
(pdf) preparation of novel amphoteric polyacrylamide and its synergistic retention with cationic polymers

(PDF) Preparation of novel amphoteric polyacrylamide and its synergistic retention with cationic polymers

Effect of cationic degree on retention properties. The molecular weight of PDAA is 3 million. ... China National Pulp and Paper Research Institute Co., Ltd, Beijing, 100102, China * Corresponding

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preparation of novel amphoteric polyacrylamide and its synergistic retention with cationic polymers - de gruyter

Preparation of novel amphoteric polyacrylamide and its synergistic retention with cationic polymers - De Gruyter

pulp is then concentrated with 80 mesh nylon cloth and sealed with a plastic bag for future use. 2.2.4 Preparation of handsheets To make handsheet with a base weight of 60g/m2,1.6g pulp, 0.28g talcum powder, and 300g water are mixed evenly. Polymer retention

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cellulose nanofibrils manufactured by various methods with application as paper strength additives | scientific reports

Cellulose nanofibrils manufactured by various methods with application as paper strength additives | Scientific Reports

The commercial bleached hardwood pulp which was also used for the preparation of paper was provided by a paper mill (Guangdong, China). The endoglucanase (BANZYME 2900) whose activity was 7.3 IU

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effects of cellulose nanofibrils and starch compared with polyacrylamide on fundamental properties of pulp and paper

Effects of cellulose nanofibrils and starch compared with polyacrylamide on fundamental properties of pulp and paper

Cationic starch improved pulp retention and drainage more than CNFs and CPAM. ? Cationic starch provided denser and stronger paper than CNFs and CPAM. ? Better paper formation was produced by cationic starch compared to CNFs and CPAM. ? Cationic polymer/CNFs revealed stronger paper than lonely CNFs or cationic polymers. Keywords Starch

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immobilized enzyme on pulp fiber through layer-by-layer technique using cationic polyacrylamide for whitewater treatment from papermaking

Immobilized enzyme on pulp fiber through layer-by-layer technique using cationic polyacrylamide for whitewater treatment from papermaking

Simulated whitewater samples were provided by a Chinese Paper Mill and stored at 4 C. Immobilization of pectinase on pulp fiber by layer-by-layer deposition of CPAM and enzyme 1 g pulp fibers were dispersed in 200 mL 25 mg/L CPAM aqueous solution and the mixture was stirred for adsorption.

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ijms | free full-text | polymeric wet-strength agents in the paper industry: an overview of mechanisms and current challenges

IJMS | Free Full-Text | Polymeric Wet-Strength Agents in the Paper Industry: An Overview of Mechanisms and Current Challenges

Recently, a cationic starch/CNF dual system was demonstrated to be superior to cationic polyacrylamide for improving the bagasse pulp and paper key properties []. This finding was related to the similarity of cationic starch and cellulosic fiber structure, as well as to the branched structure of cationic starch, in contrast to the linear cationic polyacrylamide.

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preparation of novel amphoteric polyacrylamide and its synergistic retention with cationic polymers - de gruyter

Preparation of novel amphoteric polyacrylamide and its synergistic retention with cationic polymers - De Gruyter

The surface of the paper pulp fiber is usually negatively charged and easy to adsorb the heterocations in the system, thus reducing the adsorption with the cation retention aid. In contrast, amphoteric polypropylene amide can preferentially adsorb heterocations in the system, so its retention effect is better than that of cationic polymer ( 3 , 4 , 5 ).

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a comprehensive study on nanocelluloses in papermaking: the influence of common additives on filler retention and paper strength - cellulose

A comprehensive study on nanocelluloses in papermaking: the influence of common additives on filler retention and paper strength - Cellulose

Additionally, retention agents, such as cationic polyacrylamides (CPAM) are used to retain the mineral fillers in the paper matrix. Other additives such as optical brightening agents, dyes, waxes, etc., are also included, although not directly affecting the papers¡¯ strength (Neimo 1999 ; Thorn and Au 2009 ).

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adsorption and flocculation behavior of cationic polyacrylamide and colloidal silica

Adsorption and flocculation behavior of cationic polyacrylamide and colloidal silica

The adsorption of cationic polyacrylamide and silica nanoparticle systems onto a model surface has been compared with the adsorption and flocculation of a fiber suspension. An increase in ionic strength affects the polyelectrolyte adsorption in different ways in these two systems.

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peer-reviewed article bioresources

PEER-REVIEWED ARTICLE bioresources

The results showed that the retention of fines fraction and strength properties of the pulp were both improved by applying nanocrystalline cellulose together with cationic polyacrylamide or...

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