Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Evaluation of Fiber Lamination Characteristics via Multi-nozzle Arrangement for Mass-scale Electrospinning Equipment

대규모 전기방사 장치를 위한 멀티노즐 배열 구조에 따른 섬유 적층 특성 평가

  • Jong-Hwan Lee (DYETEC, Carbon Composite Virtual Engineering Research Center) ;
  • Jong-Hyuk Lee (DYETEC, Carbon Composite Virtual Engineering Research Center) ;
  • Won-Jun Lee (National Institute of Ecology) ;
  • Jee-Hyun Sim (DYETEC, Carbon Composite Virtual Engineering Research Center)
  • 이종환 (DYETEC연구원 전북탄소복합체가상공학센터) ;
  • 이종혁 (DYETEC연구원 전북탄소복합체가상공학센터) ;
  • 이원준 (국립생태원) ;
  • 심지현 (DYETEC연구원 전북탄소복합체가상공학센터)
  • Received : 2023.11.27
  • Accepted : 2023.12.07
  • Published : 2024.02.29
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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.

Keywords

Acknowledgement

This work was supported by a grant from the National Institute of Ecology (NIE), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIE-B-2023-18).

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