Preprint Article Version 3 Preserved in Portico This version is not peer-reviewed

Manufacturing, Characterisation and Mechanical Analysis of PAN Membranes

Version 1 : Received: 11 September 2020 / Approved: 12 September 2020 / Online: 12 September 2020 (09:27:39 CEST)
Version 2 : Received: 6 October 2020 / Approved: 7 October 2020 / Online: 7 October 2020 (09:20:10 CEST)
Version 3 : Received: 14 October 2020 / Approved: 15 October 2020 / Online: 15 October 2020 (16:48:45 CEST)

A peer-reviewed article of this Preprint also exists.

Tüfekci, M.; Durak, S.G.; Pir, İ.; Acar, T.O.; Demirkol, G.T.; Tüfekci, N. Manufacturing, Characterisation and Mechanical Analysis of Polyacrylonitrile Membranes. Polymers 2020, 12, 2378. Tüfekci, M.; Durak, S.G.; Pir, İ.; Acar, T.O.; Demirkol, G.T.; Tüfekci, N. Manufacturing, Characterisation and Mechanical Analysis of Polyacrylonitrile Membranes. Polymers 2020, 12, 2378.

Journal reference: Polymers 2020, 12, 2378
DOI: 10.3390/polym12102378

Abstract

To investigate the effect of Polyvinylpyrrolidone (PVP) addition and consequently porosity, two different sets of membranes are manufactured, since PVP is a widely used poring agent which has an impact on the mechanical properties of the membrane material. The first set (PAN 1) includes PAN and the necessary solvent while the second set (PAN 2) is made of PAN and PVP. These membranes are put through several characterisation processes including tensile testing. The obtained data are used to model the static behaviour of the membranes with different geometries, but similar loading and boundary conditions that represent their operating conditions. This modelling process is undertaken by using finite element method. The main idea is to investigate how geometry affects the load-carrying capacity of the membranes. Alongside membrane modelling, their materials are modelled with representative elements with hexagonal and rectangular pore arrays (RE) to understand the impact of porosity on the mechanical properties. Exploring the results, the best geometry is found as the elliptic membrane with the aspect ratio 4 and the better RE as the hexagonal array which can predict the elastic properties with an approximate error of 12%.

Subject Areas

mechanical characterization; foams; ultrafiltration membrane; finite element method; non-linear deformations

Comments (1)

Comment 1
Received: 15 October 2020
Commenter: Mertol Tufekci
Commenter's Conflict of Interests: Author
Comment: Format changes and minor typological improvements are conducted.
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