Abstract
Polymer adhesion and sintering in compound nonwovens was studied. Nonwovens containing a mixture of binding bi-component (BICO) fibers embedded in a fibrous matrix were heated to melt the outer shell of BICO fibers and interlock the matrix to create stiff load-bearing surfaces. It was found that stiffness depends on heat-treatment regimes. In low-temperature regimes, BICO fibers melt, but do not fully flow and encase the surrounding filler matrix. At sufficiently high temperatures, the shells of BICO fibers melt and flow which results in encasing the neighboring filler fibers. This results in an abrupt increase in the nonwoven stiffness which is independent of heat-treatment temperature. At significantly high temperatures, the filler matrix fibers sinter to each other leading to a further increase in stiffness. The experiments were conducted with co-polymers frequently used in the shells of BICO to demonstrate the interlocking mechanism characteristic of these compound nonwovens.
| Original language | English |
|---|---|
| Journal | Journal of Applied Polymer Science |
| DOIs | |
| Publication status | Accepted/In press - 2017 Jan 1 |
| Externally published | Yes |
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Keywords
- Adhesives
- Fibers
- Films
- Stiff load-bearing surfaces
- Textiles
ASJC Scopus subject areas
- Chemistry(all)
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry
Cite this
Polymer adhesion in heat-treated nonwovens. / Staszel, Christopher; Yarin, Alexander; Pourdeyhimi, Behnam.
In: Journal of Applied Polymer Science, 01.01.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Polymer adhesion in heat-treated nonwovens
AU - Staszel, Christopher
AU - Yarin, Alexander
AU - Pourdeyhimi, Behnam
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Polymer adhesion and sintering in compound nonwovens was studied. Nonwovens containing a mixture of binding bi-component (BICO) fibers embedded in a fibrous matrix were heated to melt the outer shell of BICO fibers and interlock the matrix to create stiff load-bearing surfaces. It was found that stiffness depends on heat-treatment regimes. In low-temperature regimes, BICO fibers melt, but do not fully flow and encase the surrounding filler matrix. At sufficiently high temperatures, the shells of BICO fibers melt and flow which results in encasing the neighboring filler fibers. This results in an abrupt increase in the nonwoven stiffness which is independent of heat-treatment temperature. At significantly high temperatures, the filler matrix fibers sinter to each other leading to a further increase in stiffness. The experiments were conducted with co-polymers frequently used in the shells of BICO to demonstrate the interlocking mechanism characteristic of these compound nonwovens.
AB - Polymer adhesion and sintering in compound nonwovens was studied. Nonwovens containing a mixture of binding bi-component (BICO) fibers embedded in a fibrous matrix were heated to melt the outer shell of BICO fibers and interlock the matrix to create stiff load-bearing surfaces. It was found that stiffness depends on heat-treatment regimes. In low-temperature regimes, BICO fibers melt, but do not fully flow and encase the surrounding filler matrix. At sufficiently high temperatures, the shells of BICO fibers melt and flow which results in encasing the neighboring filler fibers. This results in an abrupt increase in the nonwoven stiffness which is independent of heat-treatment temperature. At significantly high temperatures, the filler matrix fibers sinter to each other leading to a further increase in stiffness. The experiments were conducted with co-polymers frequently used in the shells of BICO to demonstrate the interlocking mechanism characteristic of these compound nonwovens.
KW - Adhesives
KW - Fibers
KW - Films
KW - Stiff load-bearing surfaces
KW - Textiles
UR - http://www.scopus.com/inward/record.url?scp=85039037421&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85039037421&partnerID=8YFLogxK
U2 - 10.1002/app.46165
DO - 10.1002/app.46165
M3 - Article
AN - SCOPUS:85039037421
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
ER -