Influence of Recycling on Chemical Properties and Hornification of CMP and

Document Type : Research Paper

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Abstract

Cellulose fibers undergo a series of irreversible changes i.e hornification when exposed to cycles of wetting and drying. In this study, the effect of recycling on physical and chemical properties of chemimechanical pulp (CMP) and neutral sulfite semi-chemical (NSSC) pulp was evaluated. The pulps were recycled three times. Hornification was measured by Water retention value. The results indicated that water retention value and carboxyl groups were decreased due to recycling, hornification also increased during cycles of wetting and drying. Changes in crystalline structure of the pulp during first cycle of recycling were investigated by ATR- FTIR. The crystallinity index increased to some extent, when compared to virgin pulp. Recycling influence on the fiber length was not significant. Hornification introduced as a main cause of poor properties of recycled paper. Also, reduction of carboxyl groups could be one of the causes for lowering water retention value and decrease in strengths.
 

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References

1- Akerholm, M., Hinterstoisser, B., Salmen L., 2004. Characterization of the crystalline structure of cellulose using static and dynamic FT-IR spectroscopy. Carbohydrate Research 339,569–578.
2- Atalla, R. H., 1992. Structural changes in cellulose during papermaking and recycling. In: Mat. Res. Soc. Symp. Proc. Vol. 266, pp. 229-235.
3- Barzyk, D., Page, D.H., Ragauskas, A., 1997.Acidic group topochemistry and fiber-to-fiber specific bond strength.Journal of Pulp and Paper Science 23(2), 59-61.
4- Bovin, A., Hartler, N., Teder, A., 1973. Changes in pulp quality due to repeated papermaking . Paper Technol. 14(10):  261-264.
5- Brancato, A., 2008. Effect of progressive recycling on cellulode fiber surface properties. Ph.D. thesis.Georgia Institute of Technology, 147 pages.
6- Forsstrom, J., Andreasson, B., Wagberg, L., 2005. Influence of pore structure and water retaining ability of fibres on the strength of papers from unbleached kraft fibres. Nordic Pulp and Paper Research Journal 20(2): 176-185.
7- Guo, J.W., Wang, Y.,Quan,W., Wen, M., 2011. Effects of slushing process on the pore structure and crystallinity in old corrugated container cellulose fibre. Carbohydrate Polymers 83. 1–7.
8- Han,Y., Lanouette.R., 2008.Peroxide modified  Jack Pine TMP. BioResources 3(3):870-880.
9- Hashemi, M., Hamzeh Y., 2010. Recycling potential of chemical pulp fibers from juvenile wood and mature wood of Poplar deltoides. M.S. thesis. Department of Wood and Paper Science and Technology, university of Tehran, 80 pages,(In Persian).
10- Howard, R., Bichard, W., 1992. The Basic Effects of Recycling on Pulp Properties. Journal of Pulp and Paper Science 18(4): 151-159.
11- Hubbe, M., Rojas, O.J., Venditty, R.A., 2007. What happens to cellulose fiber during papermaking and recycling. Bioresource 2(4):739-788.
12- JinQuan, W.,Yan, W., Qing, X.,. 2010. Effects of hemicellulose removal on cellulose fiber structure and recycling characteristics of eucalyptus pulp. Bioresource Technology 101(12): 4577–4583.
13- Jin Kim, H., Soo Oh, J., Muk Jo, B., 2000. Hornification Behaviour of Cellulosic fibers by Recycling. Journal of Applied Chemistry  4(1): 363-366.
14- Matsuda, Y., Isogai, A. Onabe, F., 1994. Effects of thermal and hydrothermal treatments on the reswelling capabilities of pulps and papersheets, Journal of Pulp and Paper Science. 20(11): 323–327.
15- Nazhad, M. M., Pazner, L., 1994. Fundamentals of strength loss in recycled paper. TAPPI Journal 77(9): 171-179.
16- Nazhad, M. M., 2005. Recycled fiber quality. A review, J. Ind.Eng. Chem 11(3):314-329. Kewin, l., Jacques, l., Jinying, V., 1996. Effect of recycling on papermaking and high yield pulps.TAPPI journal 79(3):167-172.
17- Park, S., Venditti, R.A, Jameel, H., Pawlak, J., 2006. A novel method to evaluate fibre hornification by high resolution thermogravimetric analysis. Appita Journal 59(6): 481-485.
18- Richter, U. , 1991. Strukturanderungen von Cellulose durch Alkali Behandlung: physikalissche und chemische Beurteilungsmethoden. Doctoral thesis, Darmstadt University.
19- Sheikhi, P., Talaeipour,M., Hemasi,A., Eslam,H., Gumuskaya,E., 2010. Effect of drying and chemical treatment Bagasse soda pulp properties during recycling. Bioresource 5(3):1702-1716.
20- Takauki, O., 2002. The effet of recycling on pulp and paper properties. Japan TAPPI Journal 56(7): 986-992.
21- Tze, W.T., Gardner, D.J., 2001. Contact Angle and IGC measurements for probing surface-chemical changes in the recycling of wood pulp fibers. Journal Adhesion Science Technology 15 (2): 223–241.
22- Weise, U., Paulapuro, H., 1999. Effect of drying and rewetting cycles on fiber swelling. Journal of Pulp and Paper Science 5 (25): 163–166.
23- Wistara, W., Young, R. A., 1999. Properties and treatments of pulps from recycled paper .Part I. Physical and chemical properties of pulps, Cellulose 6:291-324.
24- Zheng, D., 2007. The Investigation of Carboxyl Groups of Pulp Fibers during Kraft Pulping, Alkaline Peroxide Bleaching, and TEMPO-mediated Oxidation. Ph.D Thesis, School of Chemical and Biomolecular Engineering Georgia Institute of Technology.
 

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