Browse > Article

Retention, Drainage, Formation, and Fracture Toughness Depending on Retention System, Molecular Weights of Polyelectrolytes and Dosage Sequences  

Chae, Hee-Jae (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science)
Kim, Mun-Sung (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science)
Park, Chang-Soon (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science)
Park, Jong-Moon (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.41, no.2, 2009 , pp. 13-19 More about this Journal
Abstract
In order to produce high quality paper at the lowest cost in high speed, typically various polyelectrolytes as retention aids were used. Retention systems such as single polymer system, dual polymer system, and microparticle system were used. The objective of this study was to analyze the changes of retention, drainage, formation and fracture toughness depending on types of retention system, molecular weight of C-PAM and dosage sequences of agents. When single polymer system was applied, retention was increased with poor formation and drainage. When common microparticle system(C-PAM/bentonite) was used, high molecular weight PAM gave high retention and fast drainage, but poor formation. When the microparticle system with reverse dosage sequence(bentonite/C-PAM) was used, low molecular weight PAM gave high retention, fast drainage and good formation. When various retention agents were applied, fracture toughness was increased than that of blank. When using high molecular weight PAM and consequently causing excessive flocculation, fracture toughness was decreased.
Keywords
retention system; retention; drainage; formation; fracture toughness;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 Liu, J. T., The role of cationic polyacrylamide as a dewatering aid in reed pulp, Tappi J. 69(2):86-89 (1986)
2 이진호, 박종문, 고해와 압착에 의한 파괴 인성과 파괴신장률의 변화, 펄프․종이기술 (J. of KTAPPI) 36(4):9-15(2004)
3 Didato, D. T., The use of single polyacrylamide retention system, 1991, Papermakers Conference Proceedings, TAPPI PRESS, Atlanta, pp. 445-448
4 Moberg, K., 1993, A visual perspective on micropaticles, Papermakers Conference Proceedings, TAPPI PRESS, Atlanta, pp. 115-127
5 Krogerus, B., 1994, Impact of retention polymers on flocculation, retention, drainage and sheet formation, Papermakers Conference Proceedings, TAPPI PRESS, Atlanta, pp. 445-452
6 Hedborg F., Nordic Pulp and Paper Research J., No.4, pp. 254-259(1996)
7 이지영, 이학래, 윤혜정, 백수의 수질이 양이온성 PAM의 흡착에 미치는 영향, 펄프.종이기술 (J. of KTAPPI) 37(1):1-9(2005)
8 Andersson, K. and Lindgren E., Important properties of colloidal silica in microparticulate systems, Nordic Pulp Paper Research J. 12(1), pp. 15-22(1997)
9 Swerin, A., Sjodin, U. and Odberg, L., Flocculation of cellulosic fiber suspensions by model micropaticle retention aids systems, Nordic Pulp and Paper Journal No.1, pp. 22-29(1997)
10 Andersson, K. Nordic., Pulp and paper Research J. No.4, pp. 243-259(1986)
11 윤혜정, 신동소, 고해와 압착처리가 종이의 파괴인성에 미치는 영향, 펄프.종이기술 (J. of KTAPPI) 32(4):1-9(2000)
12 조현정 외, 1995, 펄프.제지공학, 선진문화사, pp. 254-265
13 이학래 외, 1996, 제지과학, 광일문화사, pp. 199-232
14 Duffy B. P., 1993, A micropaticle retention approach to papermaking, Papermakers Conference Proceedings, TAPPI PRESS, Atlanta, pp. 171-175
15 편집실, 1995, 마이크로파티클 시스템을 이용한 보류 및 탈수 향상기술, 제지기술 제2호, pp. 26-34
16 Wagberg, L., Bjorklund, M., Asell, L. and Swerin, A., On the mechanism of flocculation by microparticle retention aids system, Tappi J. 79(6):157-164(1996)
17 Moore, E. E., Drainage and retention mechanism of papermaking systems treated with cationic polymers, Tappi J. 58(1):99-101(1975)
18 Moore, E. E., Charge relationships of dual polymer retention aids, Tappi J. 59(6):120-122(1976)
19 Lindstrom, T., 1989, In Fundamentals of Papermaking, Mechanical Engineering Publications LDT., London, pp. 311
20 Bernier E. Dorion., 1996, Retention Aid System, TAPPI PRESS, pp. 174-176
21 Leo Neimo, 1999, Papermaking Science and Technology, Book 4
22 McCourt, A. M., Food P. A and Cauley. T. A., A practical view of a micropaticle system in supercalendered paper, Tappi J. 76(10):165-168(1993)