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- Title
基于多孔介质模型的非织造布阻力特性研究.
- Authors
胡汝生; 刘寅; 杜晨阳; 王仕元; 李志强; 王顺
- Abstract
Aiming at the problem of initial resistance performance evaluation of needle-punched nonwovens produced by nonwoven enterprises, the resistance characteristics of pure polyester needle-punched nonwovens were numerically studied based on the porous medium model. The effects of dipping prfocess, spraying treatment, dust-free air flow rate, temperature and humidity, and nonwoven thickness on the resistance performance were analyzed. The results show that the resistance increases after dipping and spraying, and the higher the flow rate, the higher the resistance. In the temperature range of 50-100 ℃, when the flow rate and temperature are certain, the relative humidity increases and the resistance decreases significantly. In the temperature range of 0-50 ℃, when the flow rate and temperature are certain, the relative humidity increases, but the resistance does not decrease significantly. When the flow rate and relative humidity are given, the resistance increases with the increase of temperature. When the flow rate and relative humidity are constant, the resistance decreases with the increase of temperature. When the thickness is constant, the flow velocity increases regularly, and the difference between the drag forces is approximately an arithmetic series. Under the condition of constant flow rate, the thickness increases regularly, and the difference between the drag forces is approximately constant.
- Subjects
DRAG force; ARITHMETIC series; AIR flow; FLOW velocity; HUMIDITY; DUST
- Publication
Wool Textile Journal, 2022, Vol 50, Issue 6, p80
- ISSN
1003-1456
- Publication type
Article
- DOI
10.19333/j.mfkj.20210804310