Evaluation of Fiber Lamination Characteristics via Multi-nozzle Arrangement for Mass-scale Electrospinning Equipment 


Vol. 61,  No. 1, pp. 1-9, Feb.  2024
10.12772/TSE.2023.61.001


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  Abstract

We evaluated the stacking uniformity characteristics using various multi-nozzle patterns of mass-scale electrospinning equipment (nozzle 680 EA, width 1,000 mm). For the test, polyether sulfone (PES), and a polymer mixed solution was prepared by mixing dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) as solvents at a constant volume ratio. Cetyltrimethylammonium bromide (CTAB) was added to improve the electrospun below at the critical concentration of PES polymer. All experimental variables of electrospinning were fixed. In the multi-nozzle pattern, 12 nozzles arranged in the horizontal direction constituted one column, and a total of four columns were arranged in one set in an intersecting arrangement. The four multi-nozzle patterns were configured with inter-nozzle spacing of 75 mm, 78 mm, 80 mm, and 83 mm, respectively. For property evaluation, scanning electron microscopy (SEM), weight analysis, pore analysis, and air permeability measurement were performed, and the performance as an air filter was measured by a filter filtration performance test. Test results confirmed that the uniformity of fiber lamination improved as the multi-nozzle pattern changed from 75 to 83.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

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