Pore Size of the spunlaced nonwovens and optimization of the parameters for air filtration application

A. Patnaik*, L. Maduna, Cape Peninsula University of Technology, South Africa

Nonwovens are widely used for various applications including air filtration. Generally needle-punched nonwovens are widely used for air filtration. One of the drawback of this process is the fibre breakages due to harsh needle action leading to poor service life of these filters. It is particularly important for filters used in coal fired power stations where durability of the filters played an important role. Other way of producing filters is by spunlacing process. In this process, the needles are replaced by the high speed water jets, therefore, damage caused to the fibres are minimal. This work explores the use of spunlacing process for manufacturing filters suitable for air filtration applications. The mean pore size of the nonwovens plays an important role in determining the filtration properties and pressure drop characteristics.

The aim of the study is to find out the optimized mean pore size suitable for filtration application in coal fired powered stations while using the spunlacing manufacturing technology...

Session: F12 - Advanced Filter Media for Gas Filtration
Day: 24 October 2019
Time: 14:45 - 16:00 h

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