Investigation of Barrier Properties of Poly(ethylene vinyl acetate)/Organoclay Nanocomposite Films Prepared by Phase Inversion Method

2008 ◽  
Vol 274 (1) ◽  
pp. 1-5 ◽  
Author(s):  
M. Shafiee ◽  
A. Ramazani S.A.
Keyword(s):  
Vinyl Acetate ◽  
Phase Inversion ◽  
Ethylene Vinyl Acetate ◽  
Barrier Properties ◽  
Nanocomposite Films ◽  
Inversion Method ◽  
Poly Ethylene ◽  
Phase Inversion Method

Study of gas separation properties of ethylene vinyl acetate (EVA) copolymer membranes prepared via phase inversion method

2008 ◽  
Vol 62 (3) ◽  
pp. 642-647 ◽  
Author(s):  
Seyyed Abbas Mousavi ◽  
Morteza Sadeghi ◽  
M. Mohammad Yusef Motamed-Hashemi ◽  
Mahdi Pourafshari Chenar ◽  
Reza Roosta-Azad ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Gas Separation ◽  
Phase Inversion ◽  
Ethylene Vinyl Acetate ◽  
Inversion Method ◽  
Phase Inversion Method ◽  
Eva Copolymer

Influence of the Addition of Polypropylene and Compatibilizer in PA6 Membranes Obtained by Phase Inversion

2014 ◽  
Vol 775-776 ◽  
pp. 173-177 ◽  
Author(s):  
Elieber Barros Bezerra ◽  
A.M.D. Leite ◽  
E.M. Araújo ◽  
T.J.A. Melo ◽  
C.T. Cunha ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Chemical Species ◽  
Barrier Properties ◽  
Inversion Method ◽  
X Ray Diffraction ◽  
Binary Blends ◽  
Asymmetric Membranes ◽  
X Ray ◽  
Two Phases ◽  
Phase Inversion Method

Polymer blend is the name for the physical mixture of two or more polymers and/or copolymers, and this allows the obtention of new materials with superior properties to those of the pure components. The blends have been used in obtaining membranes in order to improve the barrier properties so that it can separate two phases totally or partially, restricting the transport of one or more chemical species. In this work, polymer membranes were obtained from blends of PA6/PPgAA and PA6/PP/PPgAA by phase inversion method and were studied by scanning electron microscopy (SEM) and X-ray diffraction (XRD). It was observed through the diffractograms that there were no significant variations in the characteristic peaks of PA6, and through SEM, it was observed the formation of microporous asymmetric membranes, where they showed a surface with higher porosity to the binary and ternary blends and presented smallest pore diameter for binary blends.

A straight, open and macro-porous fuel electrode-supported protonic ceramic electrochemical cell

2021 ◽  
Author(s):  
Yuxin Pan ◽  
Kai Pei ◽  
Yucun Zhou ◽  
Tong Liu ◽  
Meilin Liu ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Electrochemical Cell ◽  
Inversion Method ◽  
Phase Inversion Method

A straight, open and macro-porous Ni–BaZr0.1Ce0.7Y0.1Yb0.1O3 fuel electrode-supported protonic ceramic electrochemical cell has been fabricated by a modified phase-inversion method.

scholarly journals Chitosan succinate/PVA-PEG Membrane: Preparation, Characterization and Permeation Ability Test on Creatinine

2018 ◽  
Vol 21 (2) ◽  
pp. 80-84 ◽  
Author(s):  
Retno Ariadi Lusiana ◽  
Vivi Dia Ahmad Sangkota ◽  
Sri Juari Santosa
Keyword(s):  
Tensile Strength ◽  
Water Absorption ◽  
Poly Vinyl Alcohol ◽  
Inversion Method ◽  
Ability Test ◽  
Chitosan Membrane ◽  
Water Absorption Test ◽  
Poly Ethylene ◽  
Membrane Strain ◽  
Phase Inversion Method

Evaluation character of chitosan membrane-succinate / poly vinyl alcohol-poly ethylene glycol (PVA-PEG) were prepared in acetic acid solvent through a phase inversion method has been performed. The study began with the preparation of crosslinked chitosan compounds with succinic acid, followed by preparation into membrane by combining PVA-PEG. Character analysis of the resulting material using FTIR, EDX, TGA, water absorption test, tensile strength, membrane hydrophilicity. The ability of membrane permeation was tested against creatinine. The results showed that the succinate had reacted with chitosan. Chitosan modification through cross link and polymer alloys increases tensile strength and membrane strain of 1.7-2.5 x of pure chitosan membrane. In addition, the modified membrane also has higher water absorption and hydrophilicity values than the unmodified membrane, and this implies the ability of membrane-induced creatinine permeation. Permeable permeation values were 13.8% in chitosan, 24.84% on chitosan-succinate and 25% in chitosan-succinate / PVA-PEG. Chitosan-succinate membranes have the ability to use more than 4x repeated use.

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