Surface Treatment of Superabsorbent Polymer with Corn Starch for Improved Properties

Ariel V. Melendres(1*), Lorraine A. Carrillo(2)

(1) Department of Chemical Engineering, Technological Institute of the Philippines, 363 P. Casal St., Quiapo, Manila 1001, Philippines
(2) Department of Chemical Engineering, Technological Institute of the Philippines, 363 P. Casal St., Quiapo, Manila 1001, Philippines
(*) Corresponding Author


Samples of superabsorbent polymer (SAP) were treated with corn starch to modify absorption and permeability properties. The process was done by homogenously mixing the superabsorbent polymer particles with starch suspension using starch loading of 0.002-0.20 g of starch per g of SAP. The resulting mixture was then dried at temperature of 150oC. The absorption properties such as Free Swell Capacity (FSC) and Absorption Under Pressure (AUP) of treated SAP were determined at different starch loading using test solution of varying sodium chloride concentrations and compared with the untreated SAP. At starch loading of 0.04 g/g, AUP gave better results than untreated SAP. GLP of treated SAP gave significant improvement which is explained in terms of the controlled swelling of SAP particles and a more porous structure of the SAP gel layer that allows faster liquid flow rate.


Absorption, Free Swell Capacity, Permeability, Superabsorbent Polymers, Starch

Full Text:



  1. Ahmed, E.M., (2015). Hydrogel, Preparation, characterization, and applications: A review, Journal of Advanced Research, 6(2),105-121.
  2. Azad, M.M., Sandros, M.G., (2016). Inert Addition and surface coating of superabsorbent polymer for improved physical properties, Journal of Applied Polymer Science, 133 (39).
  3. Buchholz, F.L., Graham, A. T. (1998). Modern Superabsorbent Polymer Technology, Wiley-VCH, New York.
  4. Figura, L.O., Teixeira, A.A. (2007). Food Physics. Physical Properties – Measurement and Applications. Springer, Berlin
  5. Herfert, N., Miatudila, M. K. and Mitchel, M.A. (2007). US Pat. 2008/0187755A1
  6. Jiang, C., Cao, X. and Guo, L., (2016). Synthesis and swelling behavior of poly (acrylic acid-acryl amide-2- acrylamido-2-methyl-propansulfonic acid) superabsorbent copolymer, J. of Petroleum Exploration and Production Technology. 7 (1), 69-75
  7. Jockushch, S., Turro, N.J., Mitsukami, Y., Matsumoto, M., Iwamura, T., Lindner, T., Flohr, A., Massimo, G, (2009). Photoinduced surface crosslinking of superabsorbent polymer particles, Journal of Applied Polymer Science, 111 (5), 2163-2170.
  8. Kiatkamjornwong, S., (2007). Superabsorbent Polymers and Superabsorbent Polymer Composites, ScienceAsia, 33(1), 39-43.
  9. Lee, J., Park, S., Roh, H., Oh, S., Kim, S., Kim, M., Kim, D., Park, J., (2018). Preparation and Characterization of Superabsorbent Polymers Based on Starch Aldehydes and Carboxymethyl Cellulose, Polymers,10 (6),605.
  10. Liu, Z. S., Rempel, G.L., (1997). Preparation of superabsorbent polymers by crosslinking Acrylic Acid and Acrylamide Copolymers, Journal of Applied Polymer Science. 64 (7), 1345- 1353.
  11. Manek, R.V., Builders, P.F., Kolling, W.M., Emeje, M., Kunle O.O., (2012). Physicochemical and Binder Properties of Starch Obtained from Cyperus esculentus, AAPS PharmSciTech, 13 (2), 379-388.
  12. Melendres, A., Antang J. A., Manacob, J., (2019). Investigation of Superabsorbent Polymer Absorbency at Reduced Chemical Potential of Water, MATEC Web of Conferences. 268, 04010
  13. Mohammad, J., Zohuriaan-Mehr, M.J., Kabiri, K., (2008). Superabsorbent Polymer Materials: A review, Iranian Polymer Journal, 6, 451-477.
  14. Moini, N., Kabiri, K., (2015). Effective parameters in surface cross-linking of acrylic-based water absorbent polymer particles using bisphenol A diethylene glycidyl ether and cycloaliphatic diepoxide, Iran Polymer Journal, 24, 977-987.
  15. Montesanoa, F.F, Parente, A., Santamaria, P., Sannino, A., Serio, F., (2015). Biodegradable Superabsorbent Hydrogel increases water retention properties of growing media and plant growth, Agriculture and Agricultural Science Procedia, 4, 451-458.
  16. Mudiyanselage, T. K. and Neckers, D. C., Highly (2008), Absorbing Superabsorbent Polymer, Journal of Polymer Science A Polymer Chemistry, 46, 1357-1364.
  17. Smith, S.J., Mcintosh, S., Bremus, H., Loeker, K. (2005). U.S. Pat. 2005/0096435 A1.
  18. Zdanowicz, M., Schmidt, B., Spychaj, T., (2010). Starch graft copolymers as superabsorbent obtained via reactive extrusion processing, Pol. J. Chem. Technol., 12, 14–17.


Article Metrics

Abstract views : 2432 | views : 2483


  • There are currently no refbacks.

ASEAN Journal of Chemical Engineering  (print ISSN 1655-4418; online ISSN 2655-5409) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada.