How cationic papermaking additives affect a polyelectrolyte complex?

The anionic trash can form polyelectrolyte complexes with cationic papermaking additives, thus resulting in a low efficiency of cationic additives, increased wet end chemical cost, reduced drainage, poor product quality and inconvenient manipulation of papermaking machine [4-7] .

Can poly aluminum chloride be used as an anionic trash catcher?

The use of secondary fiber and rejected pulp as fiber raw material for medium paper is very economical. However, the use of reject pulp results in the breaking or removal of the fiber charge due to highly anionic in the rejected pulp. This research aims to determine the optimum dosage of poly aluminum chloride (PAC) as an anionic trash catcher.

Do polyethylenimine and polyaluminium chloride influence wet end system and paper properties?

The influences of polyethylenimine (PEI) and polyaluminium chloride (PAC) on wet end system and paper properties were discussed based on circulating white water, neutral sizing, double component retention and drainage aid system, filler loading and so forth.

Does a polyamine ATC deteriorate a deinked pulp?

In this paper, a deinked pulp was first pre-treated with a polyamine ATC; then, the effectiveness of two subsequently-added DSAs, anionic polyacrylamide (APAM) and cationic polyacrylamide (CPAM), were compared. Results showed that when the ATC was used alone, it deteriorated paper formation, resulting in a decrease of paper strength.

What is CPAM & PAC?

The addition of poly aluminum chloride strength of the paper produced. chloride on the properties of medium paper. II. METHODS AND MATERIAL reject pulp. The chemicals used as retention aids are chloride (PAC). These two chemicals will act as anionic trash catchers. Variations in PAC doses are as much as 0 (blank), 1,2,3,4 kg/ton of paper. CPAM

How can anion trash catcher reduce particle charge in rejected pulp?

The anion trash catcher has the role of reducing the value of particle charge in the rejected pulp. In this study, the following variations were used: blank (without PAC), 1 kg PAC/ton paper, 2 kg PAC/ton paper, 3 kg PAC/ton paper, and 4 kg/T paper. The method is first adding PAC to the pulp and then giving retention aid afterwards.