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Home » Volume 27, 2012 » Issue No. 5
PAPER CHEMISTRY
Polyelectrolyte multilayering of fibers with different polymer combinations and a comparison of its effect on paper strength with a conventional dry strength agent treatment
Seong Min Chin, Hye Jung Youn, Jaeho Ryu, and Kyujeong Sim
Abstract
Pulp fibers were modified by poly-electrolyte multilayering with different polyelectrolyte combinations and its effects on the mechanical properties of sheets were investigated in a comparison with a typical addition of a dry strength agent in a papermaking process. Bleached hardwood kraft pulp was used as a substrate with the four polyelectrolyte combinations of poly-diallyldimethylammonium chloride (poly-DADMAC)/ poly-sodium 4-styrenesulfonate (PSS), cationic starch (C-starch)/PSS, cationic polyacrylamide (C-PAM)/PSS, and C-PAM/anionic polyacrylamide (A-PAM).
The mechanical properties of handsheets made of bleached hardwood kraft pulp fibers modified by polyelectrolyte multilayering increased with an increase in the number of layers owing to the increased cumulative adsorbed amount of the polymers as well as better interaction in the contact zone between fibers. In particular, a multilayer including C-starch was the most effective at improving the strength. Polyelectrolyte multilayering was more effective at improving the mechanical properties compared to a conventional polymeric treatment.
Keywords
Adsorbed amount of polymer, Dry strength agents, Paper strength, Polyelectrolyte multilayering, Pulp fibers
Pages
915-922
Full text
PDF Document N2012-27-05-p915-922-Youn.pdf (821KB)
Polyelectrolyte multilayering of fibers with different polymer combinations and a comparison of its effect on paper strength with a conventional dry strength agent treatment (2012-27-05-p915-922-Youn.pdf)