Self-replenishing ability of cross-linked low surface energy polymer films investigated by a complementary experimental-simulation approach

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

Nowadays, many self-healing strategies are available for recovering mechanical damage of bulk polymeric materials. The recovery of surface-dependent functionalities on polymer films is, however, equally important and has been less investigated. In this work we study the ability of low surface energy cross-linked poly(ester urethane) networks containing perfluorinated dangling chains to self-replenish their surface, after being submitted to repeated surface damage. For this purpose we used a combined experimental-simulation approach. Experimentally, the cross-linked films were intentionally damaged by cryo-microtoming to remove top layers and create new surfaces which were characterized by water Contact Angle measurements and X-Ray Photoelectron Spectroscopy. The same systems were simultaneously represented by a Dissipative Particles Dynamics simulation method, where the damage was modeled by removing the top film layers in the simulation box and replacing it by new "air" beads. The influence of different experimental parameters, such as the concentration of the low surface energy component and the molecular mobility span of the dangling chains, on the surface recovery is discussed. The combined approach reveals important details of the self-replenishing ability of damaged polymer films such as the occurrence of multiple-healing events, the self-replenishing efficiency, and the minimum "healing agent" concentration for a maximum recovery.
LanguageEnglish
Article number124902
Pages1-9
Number of pages9
JournalJournal of Chemical Physics
Volume140
DOIs
StatePublished - 2014

Fingerprint

Interfacial energy
Polymer films
surface energy
healing
polymers
recovery
damage
simulation
Recovery
urethanes
Angle measurement
beads
Contact angle
boxes
esters
X ray photoelectron spectroscopy
photoelectron spectroscopy
occurrences
Water
air

Cite this

@article{ee4f617cab1342068a2657542bd9e5a3,
title = "Self-replenishing ability of cross-linked low surface energy polymer films investigated by a complementary experimental-simulation approach",
abstract = "Nowadays, many self-healing strategies are available for recovering mechanical damage of bulk polymeric materials. The recovery of surface-dependent functionalities on polymer films is, however, equally important and has been less investigated. In this work we study the ability of low surface energy cross-linked poly(ester urethane) networks containing perfluorinated dangling chains to self-replenish their surface, after being submitted to repeated surface damage. For this purpose we used a combined experimental-simulation approach. Experimentally, the cross-linked films were intentionally damaged by cryo-microtoming to remove top layers and create new surfaces which were characterized by water Contact Angle measurements and X-Ray Photoelectron Spectroscopy. The same systems were simultaneously represented by a Dissipative Particles Dynamics simulation method, where the damage was modeled by removing the top film layers in the simulation box and replacing it by new {"}air{"} beads. The influence of different experimental parameters, such as the concentration of the low surface energy component and the molecular mobility span of the dangling chains, on the surface recovery is discussed. The combined approach reveals important details of the self-replenishing ability of damaged polymer films such as the occurrence of multiple-healing events, the self-replenishing efficiency, and the minimum {"}healing agent{"} concentration for a maximum recovery.",
author = "A.C.C. Esteves and K. Lyakhova and {Riel, van}, J.M. and {Ven, van der}, L.G.J. and {Benthem, van}, R.A.T.M. and {With, de}, G.",
year = "2014",
doi = "10.1063/1.4868989",
language = "English",
volume = "140",
pages = "1--9",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Chemical Society",

}

TY - JOUR

T1 - Self-replenishing ability of cross-linked low surface energy polymer films investigated by a complementary experimental-simulation approach

AU - Esteves,A.C.C.

AU - Lyakhova,K.

AU - Riel, van,J.M.

AU - Ven, van der,L.G.J.

AU - Benthem, van,R.A.T.M.

AU - With, de,G.

PY - 2014

Y1 - 2014

N2 - Nowadays, many self-healing strategies are available for recovering mechanical damage of bulk polymeric materials. The recovery of surface-dependent functionalities on polymer films is, however, equally important and has been less investigated. In this work we study the ability of low surface energy cross-linked poly(ester urethane) networks containing perfluorinated dangling chains to self-replenish their surface, after being submitted to repeated surface damage. For this purpose we used a combined experimental-simulation approach. Experimentally, the cross-linked films were intentionally damaged by cryo-microtoming to remove top layers and create new surfaces which were characterized by water Contact Angle measurements and X-Ray Photoelectron Spectroscopy. The same systems were simultaneously represented by a Dissipative Particles Dynamics simulation method, where the damage was modeled by removing the top film layers in the simulation box and replacing it by new "air" beads. The influence of different experimental parameters, such as the concentration of the low surface energy component and the molecular mobility span of the dangling chains, on the surface recovery is discussed. The combined approach reveals important details of the self-replenishing ability of damaged polymer films such as the occurrence of multiple-healing events, the self-replenishing efficiency, and the minimum "healing agent" concentration for a maximum recovery.

AB - Nowadays, many self-healing strategies are available for recovering mechanical damage of bulk polymeric materials. The recovery of surface-dependent functionalities on polymer films is, however, equally important and has been less investigated. In this work we study the ability of low surface energy cross-linked poly(ester urethane) networks containing perfluorinated dangling chains to self-replenish their surface, after being submitted to repeated surface damage. For this purpose we used a combined experimental-simulation approach. Experimentally, the cross-linked films were intentionally damaged by cryo-microtoming to remove top layers and create new surfaces which were characterized by water Contact Angle measurements and X-Ray Photoelectron Spectroscopy. The same systems were simultaneously represented by a Dissipative Particles Dynamics simulation method, where the damage was modeled by removing the top film layers in the simulation box and replacing it by new "air" beads. The influence of different experimental parameters, such as the concentration of the low surface energy component and the molecular mobility span of the dangling chains, on the surface recovery is discussed. The combined approach reveals important details of the self-replenishing ability of damaged polymer films such as the occurrence of multiple-healing events, the self-replenishing efficiency, and the minimum "healing agent" concentration for a maximum recovery.

U2 - 10.1063/1.4868989

DO - 10.1063/1.4868989

M3 - Article

VL - 140

SP - 1

EP - 9

JO - Journal of Chemical Physics

T2 - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

M1 - 124902

ER -