Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

Preparation of Polyvinyl Alcohol Absorbent films: Comparison of Radiation and Chemical Crosslinked Films

Document Type : Research Paper

Authors

N Sheikh
S Kianfar
Abstract
Polymeric absorbents are extensively used in the separation systems. In this paper, the preparation and characterization of a polymeric absorbent is considered. For this purpose Polyvinyl alcohol (PVA) films were prepared and then crosslinked by radiation method using gamma-ray and chemical methods by the use of Glutaraldehyde solution. In the chemical method, the reaction with and without sulphuric acid and in the radiation method the reaction in dry and also aqueous media containing acid were carried out. The gel content, water uptake and tensile properties were measured for all samples. The results showed that the radiation method in aqueous media containing acid led to the maximum gel formation. In addition, the radiation method led to the formation of films with more flexibility. Nickel and Manganese adsorptions were measured on the crosslinked films, which were obtained by the radiation and chemical methods. These measurements were made as a function of pH and also the concentration of metal ion in the solution. The maximum metal adsorption was found at pH=7. In addition, with increasing the metal ion concentration the amount of ion adsorption was increased. In general, our studies showed that an absorbent which is prepared by the radiation method is suitable for water adsorption and another formed by the chemical method is desirable in ion adsorption processes.

Highlights

  1. 1.    W.H. Philipp, L.C. Hsu, “Three methods for in situ cross-linking of Polyvinyl alcohol films for application as ion-conducting membranes in potassium hydroxide electrolyte,” NASA Technical Paper 1407, Scientific and Technical Information Office (1979).

 

  1. 2.    S.L. Bourke, et al, “A photo-crosslinked poly (vinyl alcohol) hydrogel growth factor release vehicle for wound healing applications,” AAPS Pharm. Sci, 5 (4), 33-48 (2003).

 

  1. 3.    S.Y. Park, S.T. Jun, K.S. Marsh, “Physical properties of PVOH/Chitosan blended films cast from different solvents, Food Hydrocolloids,” 15, 499-502 (2001).

 

  1. 4.    S.B. Bahrami, S.S. Kordestani, H. Mirzadeh, P. Mansoori, “Poly (vinyl alcohol)-chitosan blends: preparation, mechanical and physical properties,” Iran. Polym. J, 12, 139-146 (2003).

 

  1. 5.    D.A. Devi, B. Smitha, S. Sridhar, T.M. Aminabhavi, “Dehydration of 1, 4-dioxane through blend membranes of poly (vinyl alcohol) and chitosan by prevaporation,” J. Membr. Sci, 280, 138-147 (2006).

 

  1. 6.    A. Svang-Ariyaskul, et al, “Blended chitosan and polyvinyl alcohol membranes for the prevaporation dehydration of isopropanol,” J. Membr. Sci, 280, 815-823 (2006).

 

  1. 7.    J.M. Wasikiewicz, N. Nagasawa, M. Tamada, H. Mitomo, F. Yoshii, “Adsorption of metal ions by carboxymethylchitin and carboxymethylchitosan hydrogels,” Nuclear Instruments and Methods in Physics Research, B 236, 617-623 (2005).

 

  1. 8.    E.A. Hegazy, A.M. El-Nagar, M.M. Senna, A.H. Zahran, “Removal of industrial pollutants from wastewaters by graft copolymers,” International Conference on hazardous waste: sources, effect and management, Cairo-Egypt (1998).

 

  1. 9.    J.A. Kiernan, “Formaldehyde, formalin, paraformaldehyde and glutaraldehyde: what they are and what they do,” Microscopy Today, 1, 8-12 (2000).

Keywords

Polyvinyl Alcohol
Radiation Crosslinking
Chemical Crosslinking
Mechanical Properties
Metal Ion Adsorption
  1. 1.    W.H. Philipp, L.C. Hsu, “Three methods for in situ cross-linking of Polyvinyl alcohol films for application as ion-conducting membranes in potassium hydroxide electrolyte,” NASA Technical Paper 1407, Scientific and Technical Information Office (1979).

 

  1. 2.    S.L. Bourke, et al, “A photo-crosslinked poly (vinyl alcohol) hydrogel growth factor release vehicle for wound healing applications,” AAPS Pharm. Sci, 5 (4), 33-48 (2003).

 

  1. 3.    S.Y. Park, S.T. Jun, K.S. Marsh, “Physical properties of PVOH/Chitosan blended films cast from different solvents, Food Hydrocolloids,” 15, 499-502 (2001).

 

  1. 4.    S.B. Bahrami, S.S. Kordestani, H. Mirzadeh, P. Mansoori, “Poly (vinyl alcohol)-chitosan blends: preparation, mechanical and physical properties,” Iran. Polym. J, 12, 139-146 (2003).

 

  1. 5.    D.A. Devi, B. Smitha, S. Sridhar, T.M. Aminabhavi, “Dehydration of 1, 4-dioxane through blend membranes of poly (vinyl alcohol) and chitosan by prevaporation,” J. Membr. Sci, 280, 138-147 (2006).

 

  1. 6.    A. Svang-Ariyaskul, et al, “Blended chitosan and polyvinyl alcohol membranes for the prevaporation dehydration of isopropanol,” J. Membr. Sci, 280, 815-823 (2006).

 

  1. 7.    J.M. Wasikiewicz, N. Nagasawa, M. Tamada, H. Mitomo, F. Yoshii, “Adsorption of metal ions by carboxymethylchitin and carboxymethylchitosan hydrogels,” Nuclear Instruments and Methods in Physics Research, B 236, 617-623 (2005).

 

  1. 8.    E.A. Hegazy, A.M. El-Nagar, M.M. Senna, A.H. Zahran, “Removal of industrial pollutants from wastewaters by graft copolymers,” International Conference on hazardous waste: sources, effect and management, Cairo-Egypt (1998).

 

  1. 9.    J.A. Kiernan, “Formaldehyde, formalin, paraformaldehyde and glutaraldehyde: what they are and what they do,” Microscopy Today, 1, 8-12 (2000).

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