Effects of Montmorillonite (MMT) Inorganic Fillers on Polyvinylidene (PVDF) Mixed Matrix Membrane

Abstract:

Asymmetric nanoclay-polyvinylidene (PVDF) mixed matrix membranes (MMMs) were prepared by the reaction of various amount of montmorillonite (MMT) nanoclay mineral with PVDF. The MMMs were fabricated via dry-wet phase inversion method with N,N-dimethyl-acetamide (DMAc) as the solvent and ethanol as the coagulant. The fabricated MMMs were characterized by means of fourier-transform infrared (FTIR) and scanning electron microscopy (SEM). The separation performances of the prepared membranes were evaluated by pure gases (CO₂ and CH₄). From the FTIR spectrum, MMMs exhibited new peaks compared to pristine PVDF membrane, indicating assimilation of MMT into the PVDF membrane. The morphology of the membranes depends on the clay mineral loading as confirmed by SEM. PVDF/3wt% MMT MMM showed the highest CO₂ permeance and CO₂/CH₄ selectivity relative to neat PVDF membrane.

• Periodical: Applied Mechanics and Materials (Volume 625)
• Pages: 696-700
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.625.696
• Online since: September 2014
• Authors: Oh Pei Ching*, Mason Wong Bak Lung
• Keywords: Mixed Matrix Membrane (MMM), Montmorillonite, Nanoclay, Polyvinylidene

References

[1] T. -S. Chung, L.Y. Jiang, Y. Li, S. Kulprathipanja, Mixed matrix membranes (MMMs) comprising organic polymers with dispersed inorganic fillers for gas separation, Progress in Polymer Science 32 (2007) 483-507.

DOI: 10.1016/j.progpolymsci.2007.01.008

[2] M.M.D.M. Zahidi, Upgrading Low Quality Natural Gas with CO2 Selective Polymers Membrane, in: Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, (2009).

DOI: 10.15282/jmes.11.4.2017.12.0278

[3] A. Sorrentino, G. Gorrasi, M. Tortora, V. Vittoria, Barrier Properties of Polymer/Clay Nanocomposite Polymer Nanocomposites (2006) 273-296.

DOI: 10.1533/9781845691127.1.273

[4] S. Yariv, K.H. Michaelian, Structure and Surface Acidity of Clay Minerals, in: S. Yariv, H. Cross (Eds. ) Organo-Clay Complexes and Interactions, Marcel Dekker, 2002, pp.1-38.

DOI: 10.1201/9781482270945

[5] M. Aroon, A. Ismail, M. Montazer-Rahmati, Performances Studies of Mixed Matrix Membranes for Gas Separation: A Review, Separation and Purification Technology (2010) 229-242.

DOI: 10.1016/j.seppur.2010.08.023

[6] A.L. Gomes, M.B.P. Zakia, J.G. Filho, E. Armelin, C. Alemán, J.S. d.C. Campos, Preparation and characterization of semiconducting polymeric blends. Photochemical synthesis of poly(3-alkylthiophenes) using host microporous matrices of poly(vinylidene fluoride), Polymer Chemistry 3 (2012).

DOI: 10.1039/c2py00003b

[7] G. Mago, D.M. Kalyon, F.T. Fisher, Membranes of Polyvinylidene Fluoride and PVDF Nanocomposites with Carbon Nanotubes via Immersion Precipitation, Journal of Nanomaterials (2008).

DOI: 10.1155/2008/759825

[8] S.A. Hashemifard, A.F. Ismail, T. Matsuura, Effects of montmorillonite nano-clay fillers on PEI mixed matrix membrane for CO2 removal, Chem Eng J 170 (2011) 316-325.

DOI: 10.1016/j.cej.2011.03.063

[9] T.T. Moore, W.J. Koros, Non-ideal Effects in Organic-Inorganic Materials for Gas Separation Membranes, Journal of Molecular Structure (2005) 87-98.

DOI: 10.1016/j.molstruc.2004.05.043