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Study of cyclic bursting loading on needle-punched nonwovens: Part II – Change in air permeability and compression behavior

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Title Statement Study of cyclic bursting loading on needle-punched nonwovens: Part II – Change in air permeability and compression behavior
 
Added Entry - Uncontrolled Name Kumar, Bipin ; UC Davis
Das, Apurba ; IIT Delhi
Sharma, Atul ; IIT Delhi
Krishnasamy, Jagatheesan ; IIT Delhi
Alagirusamy, R ; IIT Delhi
 
Uncontrolled Index Term Air permeability;Bursting strength;Compression behaviour;Cyclic pressure;Needle-punched nonwovens
 
Summary, etc. <p class="Abstract" style="text-align: justify;">Efforts have been made to investigate the physical properties of needle-punched nonwovens, such as compression and air permeability, before and after the application of cyclic bursting pressure. It is observed that the structural parameters, such as areal density, needling density and fibre fineness, have significant effect on the aforementioned fabric characteristics. More compression is observed in a sample with low mass density. Sample made of coarser fibre shows lower compression as compared to finer fibre samples. The air permeability decreases with increase in mass density. On conducting cyclic bursting test on a sample, the values of air permeability and compression change significantly. The cyclic parameters, such as pressure magnitude and rest time at cyclic peak pressure, cause significant structural changes and reorientation of the fibre during deformation. Increase in pressure and rest time causes increase in compression parameter (<em>α</em>) and air permeability. Nevertheless, at low cyclic pressure level (10% of bursting pressure), the network becomes compact due to fibrous reorientation, and therefore both the values of compression parameter (<em>α</em>) and air permeability show initial drop. On examining the samples made of coarser and finer fibres, the variation is observed in the extent of change in the air permeability.</p>
 
Publication, Distribution, Etc. Indian Journal of Fibre & Textile Research (IJFTR)
2018-07-02 13:28:30
 
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http://op.niscair.res.in/index.php/IJFTR/article/view/12405
 
Data Source Entry Indian Journal of Fibre & Textile Research (IJFTR); ##issue.vol## 43, ##issue.no## 2 (2018): Indian Journal of Fibre & Textile Research
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJFTR/article/download/12405/35593
http://op.niscair.res.in/index.php/IJFTR/article/download/12405/35594
http://op.niscair.res.in/index.php/IJFTR/article/download/12405/36253