Polymer adhesion in heat-treated nonwovens

Christopher Staszel, Alexander L. Yarin, Behnam Pourdeyhimi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


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 languageEnglish
Article number46165
JournalJournal of Applied Polymer Science
Issue number15
Publication statusPublished - 2018 Apr 15

Bibliographical note

Funding Information:
This work is supported by the Nonwovens Institute, grant no. 14– 163.

Publisher Copyright:
© 2017 Wiley Periodicals, Inc.


  • adhesives
  • fibers
  • films
  • stiff load-bearing surfaces
  • textiles

ASJC Scopus subject areas

  • General Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry


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