Carboxymethyl Cellulose (CMC) Preparation from Mixed Office Wastepaper Deinked and Bleached Bagasse pulps: Characterization and Comparison

Document Type : Research Paper


1 M.Sc. student, Cellulose and Paper Technology Dept., Shahid Beheshti University, Iran

2 Assistant Professor, Cellulose and Paper Technology Dept., Shahid Beheshti University, Iran

3 Professor, Department of Chemistry, Payame Noor University., Tehran, Iran


Carboxymethyl cellulose (CMC), one of the most important cellulose derivatives, is widely and increasingly used in industries as emulsifier, stabilizer, disperser, thickener, and gelling agent. The main raw material of the cellulose derivative is cellulose from wood and cotton linter. However, lack of the fiber resources, especially in Iran, gradually grown interest on other available fiber resources such as agricultural waste and recycled fibers, as alternative cellulose resources. Bagasse pulp as a non-wood fiber and mixed office wastepaper deinked pulp as a recycled fiber were carboxymethylated in aqueous alkaline medium using mono chloro acetic acid (MCA) as etherifying agent under identical conditions. Then, this paper explores the production feasibility of carboxymethylcellulose (CMC) from the unusual pulps combined with the comparison. The chemical composition of the pulps were determined; include α-cellulose, hemicellulose, lignin, extractives and ash content, water retention value, intrinsic viscosity, carboxyl group and pH. α-cellulose content as the most important character of the derivatization was 84.66% in DIP and 71.33% in bagasse pulp. DIP non-polysaccharide compound (lignin, Ext. and ash) was 5.92% compared to 2.36% for bagasse pulp. Cellulose carboxymethylated were done and the degree of substitution (DS), viscosity, purity, pH and yield of the prepared CMC was also determined and found to be dependent upon the source of the cellulose pulp. Viscosity and purity were higher in CMC produced from DIP (981 cPs and 93%, resp.) compared to the bagasse pulp (680 cPs and 87.33% resp.), which is attributed to its originally higher α-cellulose content. Yield and D.S were higher in CMC prepared from bagasse (168.8% and 0.57 resp.) compared to DIP (155% and 0.45 resp.), which are originated from lower crystallinity and molecular mass compound in bagasse, resulted in higher substitution of carboxymethyl groups.


[1] Appaw, C., 2004. Rheology and Microstructure of Cellulose Acetate in Mixed Solvent Systems, North Carolina State University in Partial Fulfillment of The Requirements for the Degree of Doctor of Philosophy, 14-16 P.
[2] Kamide, K. and Saito, M., 1984. Effect of Total Degree of Substitution on Molecular Parameters of Cellulose Acetate. European Polymer Journal, 20(9): 903-914.
[3] Faezipour, M., Khalafi, A., Mirshokraei, A., Lohrasebi, A. and Pirjani, A., 2005. Exploring the Possibility of Waste and Office Waste Paper Deinking Aquacel Method. Iranian Journal of Natural Resources, 59(2): 467-457. (In Persian).
[4] Zohoorian Mehr, M.J., 2002. Carbohydrate Polymers, Journal of Chemistry, Vol. 16, No. 2, 21-29 P. (In Persian).
[5] Zohoorian Mehr, M.J., 2006, Cellulose and Cellulose Derivatives, Polymer Society of Iran, 38 P. (In Persian).
[6] Shostrom, A., 2006. Principles of Chemistry Wood, Seyed Ahmad Mirshokraei Translation, Academic Publishing Center, Tehran, 100-170 P. (In Persian).
[7] Mohanty A.K., Misra, M. and Hinrichsen G., 2000. Biofibres, Biodegradable Polymer and Composites: an Overview. J Macromolecular Materials and Engineering, 276: 277- 1–24 P.
[8] Bono, P.H., Ying, F.Y., Yan, C.L., Muei, R., Sarbatly, D. and Krishnaiah, M., 2009, Synthesis and Characterization of Carboxymethyl Cellulose from Palm Kernel Cake. Advances in Natural and Applied Sciences, 3(1): 5-11.
[9] Silva, D.A., De, R.C.M., Paula, P.A., Feitosa, A.C.F., De Brito. and J.S., Maciel, H.C.B., 2004. Carboxymethylation of Cashew Tree Exudates Polysaccharide. Carbohydrate Polymers, 58: 163-171.
[10] Toğrul, H. and Arslan, N., 2004. Carboxymethyl Cellulose from Sugar Beet Pulp Cellulose as a Hydrophilic Polymer in Coating of Mandarin. Journal of Food Engineering, 62: 271-279.
[11] Barba1, C., Montané, D., Rinaudo, M. and Farriol1, X., 2002. Synthesis and Characterization of (CMC) From Non-Wood Fibers I. Accessibility of Cellulose Fibers and CMC Synthesis. Cellulose 9: 319–326.
[12] Varshney, V.K., Gupta P.K., Naithani, S., Khullar, R., Bhatt, A. and Soni, P.L., 2006, Carboxymethylation of α-Cellulose Isolated from Lantana Camara with Respect to Degree of Substitution and Rheological Behavior. Carbohydrate Polymers, 63: 40–45.
[13] Mario, P., Adinugraha, D.w. and Marseno, H., 2005. Synthesis and Characterization of Sodium Carboxymethylcellulose from Cavendish Banana Pseudo Stem (Musa Cavendishii LAMBERT). Carbohydrate Polymers, 62: 164–169.
[14] Pushpamalar, VA., S.J. Langford, B., M. Ahmad, C., Lim, Y.Y., 2006. Optimization of Reaction Conditions for Preparing Carboxymethyl Cellulose from Sago Waste. Carbohydrate Polymers, 64: 312–318.
[15] American Society for Testing and Materials, Standard Test Methods for Carboxyl Content of Cellulose. ASTM D1926-00.2011.
[16] Browning, B.L.,1967. Methods of Wood Chemistry. Vol. II. Interscience, New York/London, Pp. 490–493 P.
[17] American Society for Testing and Materials, Standard Test methods for Sodium Carboxymethyl cellulose. ASTM D1439-03., 2008, E1 2003.
[18] Hong T. L., Borrmeister B., Dautzenberg, H., Phillip B., 1978. Zur Ermittlung des Sustituionsgrases losicher Carboxymethylccellulose durch Polyelektrolyttitration. Nc state university Zellst 2 (4): 207-210.
[19] Almlof, A. H., Schenzel, K. and Germgard, U., 2013. Carboxymethyl Produced at Different Mercerization Conditions and Characterized by NIR FT Raman Spectroscopy in Combination with Multivariate Analytical Methods. BioResources,8 (2): 1918-1932.
[20] Khullar, R., Varshney, S., Naithani, S., Heinze, T. and Soni1, P.L., 2005, Carboxymethylation of Cellulosic Material (Average Degree of Polymerization 2600) Isolated from Cotton (Gossypium) Linters with Respect to Degree of Substitution and Rheological Behavior. Journal of Applied Polymer Science, 96: 1477–1482.
[21] People’s Republic of China National Standards, Food Additive: Sodium Carboxymethyl cellulose. GB1904-2005.
[22] Wustenberg, T., 2014. Cellulose and Cellulose Derivatives in the Food Industry, Wiley, Berlin, Germany, 549 p.
[23] Zhang, G., Zhang, L., Deng, H. and Sun, P., 2010. Preparation and Characterization of Sodium Carboxymethyl Cellulose from Cotton Stalk Using microwave Heating. Journal Chem. Technol. Biotechnol, 86: 584–589.
[24] Hutomo, G., Marseno, D., Anggrahini, S. and Supriyanto,  A., 2012. Synthesis and Characterization of Sodium Carboxymethylcellulose from Pod Husk of Cacao (Theobroma Cacao L.). African Journal of Food Science, 6(6): 180-185.
[25] Khaled, B. and Abdelbaki, B., 2012. Rheological and Electrokinetic Properties of Carboxymethyl Cellulose Water Dispersions In The Presence Of Salts. International Journal of Physical Sciences, 7(11):1790 – 1798.