Brittle fracture in associative polymers: The case of ionomer melts

Aamir Shabbir, Qian Huang, Quan Chen, Ralph H. Colby, Nicolas J. Alvarez, Ole Hassager

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Ionomers are interesting due to their applications in coatings, adhesives, films and packaging materials. A study of the underlying mechanisms for fracture in ionomers is consequently of both practical as well as theoretical interest. In this study, we employ high speed imaging coupled with uniaxial extensional rheometry to delineate the mechanics leading to the brittle fracture of ionomer melts. When these ionomers are elongated at a rate higher than the inverse relaxation time of physical crosslinks, an edge fracture occurs at a critical stress. Parabolic fracture profiles provide evidence that the phenomenon is purely elastic and bulk dissipation has little impact on the crack profile. Experimental results are interpreted within the Griffiths theory for linear elastic materials and the de Gennes theory for viscoelastic materials.

Original languageEnglish (US)
Pages (from-to)7606-7612
Number of pages7
JournalSoft matter
Volume12
Issue number36
DOIs
StatePublished - Jan 1 2016

Fingerprint

Ionomers
Brittle fracture
Polymers
polymers
Packaging materials
critical loading
profiles
packaging
Relaxation time
adhesives
Adhesives
Mechanics
dissipation
cracks
relaxation time
high speed
Cracks
Imaging techniques
coatings
Coatings

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Shabbir, A., Huang, Q., Chen, Q., Colby, R. H., Alvarez, N. J., & Hassager, O. (2016). Brittle fracture in associative polymers: The case of ionomer melts. Soft matter, 12(36), 7606-7612. https://doi.org/10.1039/c6sm01441k
Shabbir, Aamir ; Huang, Qian ; Chen, Quan ; Colby, Ralph H. ; Alvarez, Nicolas J. ; Hassager, Ole. / Brittle fracture in associative polymers : The case of ionomer melts. In: Soft matter. 2016 ; Vol. 12, No. 36. pp. 7606-7612.
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Shabbir, A, Huang, Q, Chen, Q, Colby, RH, Alvarez, NJ & Hassager, O 2016, 'Brittle fracture in associative polymers: The case of ionomer melts', Soft matter, vol. 12, no. 36, pp. 7606-7612. https://doi.org/10.1039/c6sm01441k

Brittle fracture in associative polymers : The case of ionomer melts. / Shabbir, Aamir; Huang, Qian; Chen, Quan; Colby, Ralph H.; Alvarez, Nicolas J.; Hassager, Ole.

In: Soft matter, Vol. 12, No. 36, 01.01.2016, p. 7606-7612.

Research output: Contribution to journalArticle

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Shabbir A, Huang Q, Chen Q, Colby RH, Alvarez NJ, Hassager O. Brittle fracture in associative polymers: The case of ionomer melts. Soft matter. 2016 Jan 1;12(36):7606-7612. https://doi.org/10.1039/c6sm01441k