Nanomaterials 2018, 8(5), 272; https://doi.org/10.3390/nano8050272
Effect of Laminating Pressure on Polymeric Multilayer Nanofibrous Membranes for Liquid Filtration
1
Department of Nanotechnology and Informatics, Institute of Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech Republic
2
Institute for New Technologies and Applied Informatics, Faculty of Mechatronics, Studentska 1402/2, 46117 Liberec, Czech Republic
*
Author to whom correspondence should be addressed.
Received: 8 February 2018 / Revised: 7 March 2018 / Accepted: 23 April 2018 / Published: 24 April 2018
(This article belongs to the Special Issue Design and Development of Nanostructured Thin Films)
Abstract
In the new century, electrospun nanofibrous webs are widely employed in various applications due to their specific surface area and porous structure with narrow pore size. The mechanical properties have a major influence on the applications of nanofiber webs. Lamination technology is an important method for improving the mechanical strength of nanofiber webs. In this study, the influence of laminating pressure on the properties of polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF) nanofibers/laminate was investigated. Heat-press lamination was carried out at three different pressures, and the surface morphologies of the multilayer nanofibrous membranes were observed under an optical microscope. In addition, air permeability, water filtration, and contact angle experiments were performed to examine the effect of laminating pressure on the breathability, water permeability and surface wettability of multilayer nanofibrous membranes. A bursting strength test was developed and applied to measure the maximum bursting pressure of the nanofibers from the laminated surface. A water filtration test was performed using a cross-flow unit. Based on the results of the tests, the optimum laminating pressure was determined for both PAN and PVDF multilayer nanofibrous membranes to prepare suitable microfilters for liquid filtration. View Full-TextKeywords:
nanofiber; lamination; water filtration
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Yalcinkaya, F.; Hruza, J. Effect of Laminating Pressure on Polymeric Multilayer Nanofibrous Membranes for Liquid Filtration. Nanomaterials 2018, 8, 272.
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