Mechanical characterization of nanoclay-filled PDMS thin films

Amir M. Nazari; Amir K. Miri; Douglas M. Shinozaki

doi:10.1016/j.polymertesting.2016.04.006

Mechanical characterization of nanoclay-filled PDMS thin films

Amir M. Nazari, Amir K. Miri, Douglas M. Shinozaki

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Polydimethylsiloxane (PDMS) reinforced by nanoclay platelets exhibits excellent mechanical properties for microfluidic systems. We tested PDMS-clay nanocomposite thin films under flat-ended cylindrical indentation and measured the elastic modulus and shear strength. A simple formulation based on a shear-lag model, fed by numerical simulations, was introduced to estimate the interfacial shear strength of thin films. Increase in the nanoclay content improved the elasticity of PDMS-clay thin films but reduced their interfacial shear strength. Shear thinning behavior of nanoclay platelets probably reduced the strength of PDMS nanocomposites. The proposed approach can be used for characterization of any polymeric thin films.

Original language	English (US)
Pages (from-to)	85-88
Number of pages	4
Journal	Polymer Testing
Volume	52
DOIs	https://doi.org/10.1016/j.polymertesting.2016.04.006
State	Published - Jul 2016
Externally published	Yes

All Science Journal Classification (ASJC) codes

Polymers and Plastics
Organic Chemistry

Keywords

Flat-ended indentation
Interfacial shear strength
Nanoclay
PDMS

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10.1016/j.polymertesting.2016.04.006

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title = "Mechanical characterization of nanoclay-filled PDMS thin films",

abstract = "Polydimethylsiloxane (PDMS) reinforced by nanoclay platelets exhibits excellent mechanical properties for microfluidic systems. We tested PDMS-clay nanocomposite thin films under flat-ended cylindrical indentation and measured the elastic modulus and shear strength. A simple formulation based on a shear-lag model, fed by numerical simulations, was introduced to estimate the interfacial shear strength of thin films. Increase in the nanoclay content improved the elasticity of PDMS-clay thin films but reduced their interfacial shear strength. Shear thinning behavior of nanoclay platelets probably reduced the strength of PDMS nanocomposites. The proposed approach can be used for characterization of any polymeric thin films.",

keywords = "Flat-ended indentation, Interfacial shear strength, Nanoclay, PDMS",

author = "Nazari, {Amir M.} and Miri, {Amir K.} and Shinozaki, {Douglas M.}",

year = "2016",

month = jul,

doi = "10.1016/j.polymertesting.2016.04.006",

language = "English (US)",

volume = "52",

pages = "85--88",

journal = "Polymer Testing",

issn = "0142-9418",

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TY - JOUR

T1 - Mechanical characterization of nanoclay-filled PDMS thin films

AU - Nazari, Amir M.

AU - Miri, Amir K.

AU - Shinozaki, Douglas M.

PY - 2016/7

Y1 - 2016/7

N2 - Polydimethylsiloxane (PDMS) reinforced by nanoclay platelets exhibits excellent mechanical properties for microfluidic systems. We tested PDMS-clay nanocomposite thin films under flat-ended cylindrical indentation and measured the elastic modulus and shear strength. A simple formulation based on a shear-lag model, fed by numerical simulations, was introduced to estimate the interfacial shear strength of thin films. Increase in the nanoclay content improved the elasticity of PDMS-clay thin films but reduced their interfacial shear strength. Shear thinning behavior of nanoclay platelets probably reduced the strength of PDMS nanocomposites. The proposed approach can be used for characterization of any polymeric thin films.

AB - Polydimethylsiloxane (PDMS) reinforced by nanoclay platelets exhibits excellent mechanical properties for microfluidic systems. We tested PDMS-clay nanocomposite thin films under flat-ended cylindrical indentation and measured the elastic modulus and shear strength. A simple formulation based on a shear-lag model, fed by numerical simulations, was introduced to estimate the interfacial shear strength of thin films. Increase in the nanoclay content improved the elasticity of PDMS-clay thin films but reduced their interfacial shear strength. Shear thinning behavior of nanoclay platelets probably reduced the strength of PDMS nanocomposites. The proposed approach can be used for characterization of any polymeric thin films.

KW - Flat-ended indentation

KW - Interfacial shear strength

KW - Nanoclay

KW - PDMS

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U2 - 10.1016/j.polymertesting.2016.04.006

DO - 10.1016/j.polymertesting.2016.04.006

M3 - Article

AN - SCOPUS:84963984774

SN - 0142-9418

VL - 52

SP - 85

EP - 88

JO - Polymer Testing

JF - Polymer Testing

ER -

Mechanical characterization of nanoclay-filled PDMS thin films

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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