Abstract
This work describes the first detailed model of meltblowing process which allows prediction of such integral laydown properties as thickness, porosity and permeability. Also, such laydown properties as the detailed three-dimensional micro-structure, fiber-size distribution and polymer mass distribution are predicted. The effects of the governing meltblowing parameters on the variation of all these laydown properties are accounted for, with the influence of the collector screen velocity being in focus. For this aim numerical solutions of the system of quasi-one-dimensional equations of the dynamics of free liquid polymer jets moving, cooling and solidifying when driven by surrounding air jet are constructed. Multiple polymer jets are considered simultaneously when they are deposited on a moving screen and forming a nonwoven laydown. The results reveal the three-dimensional configuration of the laydown and, in particular, its porosity and permeability, as well as elucidate the dependence of the laydown structure on the forming conditions, in particular, on the velocity of the screen motion. It is shown and explained how an increase in the velocity of the collector screen increases porosity and permeability of the meltblown nonwoven laydown.
| Original language | English |
|---|---|
| Pages (from-to) | 19-27 |
| Number of pages | 9 |
| Journal | Polymer (United Kingdom) |
| Volume | 85 |
| DOIs | |
| Publication status | Published - 2016 Feb 24 |
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Keywords
- Meltblowing
- Permeability
- Porosity
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
Cite this
Numerical prediction of the effect of uptake velocity on three-dimensional structure, porosity and permeability of meltblown nonwoven laydown. / Ghosal, Arkaprovo; Sinha-Ray, Suman; Yarin, Alexander; Pourdeyhimi, Behnam.
In: Polymer (United Kingdom), Vol. 85, 24.02.2016, p. 19-27.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Numerical prediction of the effect of uptake velocity on three-dimensional structure, porosity and permeability of meltblown nonwoven laydown
AU - Ghosal, Arkaprovo
AU - Sinha-Ray, Suman
AU - Yarin, Alexander
AU - Pourdeyhimi, Behnam
PY - 2016/2/24
Y1 - 2016/2/24
N2 - This work describes the first detailed model of meltblowing process which allows prediction of such integral laydown properties as thickness, porosity and permeability. Also, such laydown properties as the detailed three-dimensional micro-structure, fiber-size distribution and polymer mass distribution are predicted. The effects of the governing meltblowing parameters on the variation of all these laydown properties are accounted for, with the influence of the collector screen velocity being in focus. For this aim numerical solutions of the system of quasi-one-dimensional equations of the dynamics of free liquid polymer jets moving, cooling and solidifying when driven by surrounding air jet are constructed. Multiple polymer jets are considered simultaneously when they are deposited on a moving screen and forming a nonwoven laydown. The results reveal the three-dimensional configuration of the laydown and, in particular, its porosity and permeability, as well as elucidate the dependence of the laydown structure on the forming conditions, in particular, on the velocity of the screen motion. It is shown and explained how an increase in the velocity of the collector screen increases porosity and permeability of the meltblown nonwoven laydown.
AB - This work describes the first detailed model of meltblowing process which allows prediction of such integral laydown properties as thickness, porosity and permeability. Also, such laydown properties as the detailed three-dimensional micro-structure, fiber-size distribution and polymer mass distribution are predicted. The effects of the governing meltblowing parameters on the variation of all these laydown properties are accounted for, with the influence of the collector screen velocity being in focus. For this aim numerical solutions of the system of quasi-one-dimensional equations of the dynamics of free liquid polymer jets moving, cooling and solidifying when driven by surrounding air jet are constructed. Multiple polymer jets are considered simultaneously when they are deposited on a moving screen and forming a nonwoven laydown. The results reveal the three-dimensional configuration of the laydown and, in particular, its porosity and permeability, as well as elucidate the dependence of the laydown structure on the forming conditions, in particular, on the velocity of the screen motion. It is shown and explained how an increase in the velocity of the collector screen increases porosity and permeability of the meltblown nonwoven laydown.
KW - Meltblowing
KW - Permeability
KW - Porosity
UR - http://www.scopus.com/inward/record.url?scp=84955114549&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955114549&partnerID=8YFLogxK
U2 - 10.1016/j.polymer.2016.01.013
DO - 10.1016/j.polymer.2016.01.013
M3 - Article
VL - 85
SP - 19
EP - 27
JO - Polymer (United Kingdom)
JF - Polymer (United Kingdom)
SN - 0032-3861
ER -