[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.7584/ktappi.2014.46.5.019

Application of In-situ CaCO₃ Formation Method for Better Utilization of Recycled Fibers (1) - Enhancing Attachment of CaCO₃ to Fibers by Polymer Pre-Treatment -

Seo, Yung Bum (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University)
Lee, Min Woo (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University)
Lee, Young Ho (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University)
Jung, Jae Kwon (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University)

Publication Information

Journal of Korea Technical Association of The Pulp and Paper Industry / v.46, no.5, 2014 , pp. 19-26 More about this Journal

Abstract

In-situ $CaCO_3$ formation on recycled wood pulp was studied to improve optical property and filler attachment to the fiber furnish in papermaking. We tried to attach calcium oxide (CaO) to the recycled fibers, old newspaper (ONP) in this case, by using selected polymers before in-situ $CaCO_3$ formation reaction on fibers, and then, $CO_2$ was injected to the furnish until all the CaO on fiber surfaces was consumed. It was found that the attachment of newly formed $CaCO_3$ to recycled fibers became stronger by attaching CaO to the fibers before in-situ $CaCO_3$ formation reaction. It was expected that the polymers used for the attachment of calcium source to the fiber furnishes helped to keep the newly formed $CaCO_3$ strongly attached to the fiber surface as well as to retain the impurities associated with calcium source and recycled fibers, if any. In-situ $CaCO_3$ formation gave higher brightness and much less ERIC value in ONP sheet than the case when the equivalent amount of GCC was added to the furnish.

Keywords

Retention; polymer; in-situ $CaCO_3$ formation; ONP; $CaCO_3$ attachment;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)

Reference
Cited By KSCI

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