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Customization of hierarchical air filter media by tailoring the structural parameters of needle punched nonwoven
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-07-06 , DOI: 10.1177/15280837211029050
Rupayan Roy 1 , SM Ishtiaque 1
Affiliation  

An attempt has been made to investigate the filtration behaviour of filter media with gradient structure created through layers of needle punched nonwoven. Batts of different fibre orientation influenced by carding parameters were prepared. Carding parameters i.e. feeder, cylinder and doffer speed were optimized by using response surface methodology to achieve the batts of different fibre orientation. Three batts with a wide range of fibre orientation were selected to create the gradient structures by placing them in a different position in the layered structure. The physical, mechanical and functional properties of nonwoven were evaluated. The different order of fibre orientation of batts was also analysed with the help of SEM images. The fabric with inverse gradient structure having batts in increasing order of fibre orientation in the layered structure provided very high (close to the highest) filter efficiency and very low (close to lowest) pressure drop instead of having higher (close to highest) mean flow pore size.



中文翻译:

通过定制针刺无纺布结构参数定制分级空气过滤介质

已经尝试研究通过针刺非织造布层产生的梯度结构过滤介质的过滤行为。制备了受梳理参数影响的不同纤维取向的棉絮。使用响应面法优化梳理参数,即喂纱器、锡林和道夫速度,以实现不同纤维取向的棉絮。选择了具有广泛纤维取向范围的​​三个棉絮,通过将它们放置在分层结构中的不同位置来创建梯度结构。评估了非织造布的物理、机械和功能特性。还借助 SEM 图像分析了棉絮纤维取向的不同顺序。

更新日期:2021-07-07
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