Influence of the Addition of Inorganic Salt in Obtaining Hybrid Membranes

Abstract:

The membrane separation processes have low power consumption, higher separation efficiency, simplicity of operation and high quality end product. In this work, hybrid membranes of polyamide6 with bentonite clay were obtained by adding an inorganic salt. The hybrids were obtained by the melt intercalation method. The membranes were prepared by phase inversion technique by varying the percentage of inorganic salt and the time of exposure of the membranes during the immersion-precipitation process. The hybrid and hybrid membranes with and without the addition of the inorganic salt were characterized by X-ray diffraction (XRD). The results from XRD showed that the hybrid and hybrid membranes with and without inorganic salt presented an exfoliated and/or partially exfoliated structure. The addition of the inorganic salt did not cause significant changes with respect to the crystalline behavior of the polymer under study.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 803-808
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.803
• Online since: August 2016
• Authors: Keila Machado Medeiros*, Diego Farias Lima, Carlos Antônio Pereira de Lima, Edcleide Maria Araújo, Hélio Lucena Lira, Renê Anísio da Paz
• Keywords: Hybrid, Inorganic Salt, Membranes

References

[1] J.W. Cho and D.R. Paul: Polymer Vol. 42 (2001), pp.1083-1094.

[2] A.C. Habert, C.P. Borges, R. Nóbrega: Membrane Separation Process. (1ª edição. Rio de Janeiro: E-papers, 2006).

[3] P. Anadão: Membrane Science and Technology. (Artliber Editora Ltda. São Paulo, 2010).

[4] L.P. Cheng, D.J.L. Lin, C.L. Chang and C.K. Lee: European Polymer Journal. Vol. 42 (2006), p.356.

[5] S.S. Ray and M. Okamoto: Prog. Polymer Sci. Vol. 28 (2003), p.1539.

[6] A.M.D. Leite, K.M. Medeiros, E.M. Araújo, L.F. Maia, H.L. Lira and R.A. Paz: Mater. Sci. Forum. Vol. 660-661 (2010), p.784.

[7] E.M. Araújo, K.D. Araujo and T.R. Gouveia: Mater. Sci. Forum Vols. 530-531 (2006), p.702.

[8] E.M. Araújo, A.D. Oliveira, R. Barbosa and T.J.A. Melo: Mater. Sci. Forum Vols. 530-531 (2006), p.709.

[9] R. Barbosa, D.D. Souza, E.M. Araújo, K.C. Nóbrega and T.J.A. Melo: Mater. Sci. Forum. Vols. 660-661 (2010), p.765.

[10] K.M. Medeiros, S.V. Oliveira, E.P. Araújo, E.M. Araújo, H.L. Lira: Mater. Sci. Forum. Vols. 727-728 (2012), p.1802.

[11] K.M. Medeiros, D.D.S. Morais, T.R.G. Silva, E.M. Araújo, H.L. Lira: Mater. Sci. Forum. Vols. 727-728 (2012), p.1807.

[12] R.A. Paz, A.M.D. Leite, E.M. Araújo, T.J.A. Melo, L.A. Pessan and F.R. Passador: Polymers: Sci. and Technology. Vol. 23 (5) (2013), p.682.

[13] I.M. Kohan. Nylon Plastics Hanbook. (Hanser Publishers, Munich Vienna New York, 1995).

[14] M.F.L. Oliveira, M.G. Oliveira and M.C.A.M. Leite: Polymers: Sci. and Technology. Vol. 21 (1) (2011), p.78.

[15] A.M.D. Leite, E.M. Araújo, V.N. Medeiros, R.A. Paz and H.L. Lira: Abbass Hashim. (Org. ). Advances in Nanocomposite Technology. Rijeka, Croatia: InTech Publishers, pp.115-130 (2011).

[16] M. Sabard, F. Gouanve, E. Espuche, R. Fulchiron, G. Seytre, L.A. Fillot and L.T. Fonti: Journal of Membrane Science. Vols. 415-416 (2012), p.670.

DOI: 10.1016/j.memsci.2012.05.048

[17] K.M. Medeiros, V.N. Medeiros, D.D.S. Morais, L.R. Kojuch, E.M. Araújo, H.L. Lira: Mater. Sci. Forum Vols. 775-776 (2014), p.493.

DOI: 10.4028/www.scientific.net/msf.775-776.493