Development of a Melt-blown Nonwoven Filter for Medical Masks by Hydro Charging 


Vol. 51,  No. 4, pp. 186-192, Aug.  2014
10.12772/TSE.2014.51.186


PDF
  Abstract

In this study, a melt-blown nonwoven filter for medical masks was manufactured using an online hydro charging system. The effects of basis weight (gsm) and die to collector distance (DCD) on the breathing resistance and filtration efficiency were investigated. Hydro charging of the nonwoven web seemed to improve the filtering efficiency. However, it did not affect breathing resistance. It was demonstrated that the breathing resistance and filtration efficiency increased with increasing gsm but decreased with increasing DCD. With a DCD of 19 cm, when the gsm increased from 20 to 50 gsm, breathing resistance increased from 5.14 to 8.33 mmH2O and filtration efficiency increased from 81.39 to 94.98%. With a basis weight of 25 gsm, when the DCD increased from 15 to 25 cm, breathing resistance decreased from 7.38 to 4.27 mmH2O and filtration efficiency decreased from 89.56 to 68.28%. In addition, it was demonstrated using stability tests that the hydro charging effect lasted for 13 weeks.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)

pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)