An entanglement constraint model of topological knot in highly entangled gel towards ultra-high toughness

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Jing Zhang
  • Ziyu Xing
  • Galina Gorbacheva
  • Haibao Lu
  • Denvid Lau

Detail(s)

Original languageEnglish
Article number095301
Journal / PublicationJournal of Physics D: Applied Physics
Volume57
Issue number9
Online published30 Nov 2023
Publication statusPublished - 1 Mar 2024

Abstract

Highly entangled gels have gained extensive attention due to their excitingly large deformation and high toughness. To understand the toughening mechanism of these highly entangled gels, an entanglement constraint model has been established, based on the spatially prismatic constraint and Gaussian distribution models. A free-energy function is formulated to study the conformational dynamics, rubbery elasticity and sliding effect of topological knots in the entangled chains. Monte Carlo, molecular dynamics and finite element analysis were conducted to verify the coupling effect of inter-chain entanglement and intra-chain knot topology on the toughness behavior of highly entangled gels. Finally, experimental data available in the literature were used to verify the proposed models, providing a physical insight into the toughening mechanism of inter-chain entanglement constraint and intra-chain knot topology in the highly entangled gel. © 2023 IOP Publishing Ltd.

Research Area(s)

  • constraint model, entanglement, gel, knot topology

Citation Format(s)

An entanglement constraint model of topological knot in highly entangled gel towards ultra-high toughness. / Zhang, Jing; Xing, Ziyu; Gorbacheva, Galina et al.
In: Journal of Physics D: Applied Physics, Vol. 57, No. 9, 095301, 01.03.2024.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review