지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Periodic global pandemics of infectious diseases, such as COVID-19, have led to a surge of interest in health and safety. In particular, the demand for personal hygiene masks that prevent the spread of viruses through non-contact transmission via droplets is increasing. To improve the productivity and quality of nonwoven fabrics, which are the main materials composing personal hygiene masks, numerous studies have been conducted to predict fiber diameter according to the process conditions. However, considering the complex characteristics of nonwoven fabrics produced through mechanical, chemical, and thermal bonding, accurate prediction is difficult and involves multiple variables. In this study, the governing equation was simplified to a boundary value problem to predict the diameter of the nonwoven fabric produced by the melt-blowing method in the nonwoven fabric production process. The results were numerically analyzed by comparing the diameter of the fiber produced through a 0.3 mm nozzle with a 1,800 Melt Flow Index (MFI). The results were compared with the results of scanning electron microscopy (SEM), polymer property model, and drag coefficient values, which are the main variables of nonwoven fabric production. In addition, a tendency analysis was performed through a statistical approach of the given error values, and a simplified nonwoven fabric diameter prediction model using a correction factor was presented.
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ABSTRACT
1. 서론
2. 수치해석 및 실험 분석 절차
3. 결과 및 토론
4. 결론
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