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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 12,





LILIANA ROZEMARIE MANEA, ION SANDU
Study Concerning the Processability of Polyetherimide (PEI) Solution for Obtaining Nanofibers

Abstract:

Electrospinning came into prominence during the last years as a promising procedure to obtain fibers sized under 1µm from a wide variety of polymers. The electrospinning process, technology and equipment are relatively complex, yet efficient, able to produce continuous, exceptionally long fibers, with controlled orientation. Nowadays, the electrospinning technology is the only one able to lead to the formation of continuous filaments, with diameters of some nanometers. The present paper contains a study related to the processability of polyetherimide solution with a concentration of 12%, using as solvents a mixture of dimethylacetamide/tetrahydrofuran 1:1 ratio. Adjusting the flow rate, the distance between needles and collector and the voltage, 100 technological experiments were carried out. The main destination of these nanofibers is filtering surfaces. All fibers were studied by Scanning Electron Microscope method for analyzing the consistency of fibers disposal, the fibers diameter uniformity, and the presence of defects on fibers. Keywords: electrospinning, nanofibers, polyetherimide, SEM, defects, filter


Issue: 2015, Volume 66, Issue 12
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