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Validity of the modified molecular stress function theory to predict the rheological properties of polymer nanocomposites
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10.1122/1.4798559
/content/sor/journal/jor2/57/3/10.1122/1.4798559
http://aip.metastore.ingenta.com/content/sor/journal/jor2/57/3/10.1122/1.4798559

Figures

Image of FIG. 1.
FIG. 1.

Dynamic modulus (G′) of Ca (top) and clay (bottom) nanocomposites at 110 °C. The solid lines are fits to the generalized Maxwell model (seven modes) with the parameters given in Table II .

Image of FIG. 2.
FIG. 2.

Extensional results for EVA at different temperatures. Full lines are MSF predictions and dashed lines are obtained from linear viscoelastic data. Experimental and modeling results at T = 190 °C are vertically multiplied by a factor 1/3 and displayed.

Image of FIG. 3.
FIG. 3.

Shear and extensional viscosities of EVA, clay 2.5 and all Ca compositions at 110 °C. Full lines are viscosity prediction by the MSF model. Dashed lines are obtained from linear viscoelastic data.

Image of FIG. 4.
FIG. 4.

Extensional viscosity of clay nanocomposites at 110 °C. Dashed lines are obtained from linear viscoelastic data. For these clay concentrations (5, 7.5, and 10 wt. %), the viscosity predictions by LVE go beyond the experimentally obtained viscosities.

Image of FIG. 5.
FIG. 5.

TEM images for Ca (left) and clay (right) nanocomposites at 5 wt. %.

Image of FIG. 6.
FIG. 6.

Relative intensity of the third harmonic to the first one ( / ) obtained in LAOS as a function of strain for EVA and different nanocomposites at 110 °C and 0.05 Hz.

Tables

Generic image for table
TABLE I.

Compositions of the nanocomposites produced.

Generic image for table
TABLE II.

Relaxation spectra for all the composition using a seven-mode Maxwell model with partial moduli (g) and relaxation times (λ) obtained from SAOS data of .

Generic image for table
TABLE III.

Values of the model parameters for EVA 0, all Ca compositions and Clay 2.5 at 110 °C.

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/content/sor/journal/jor2/57/3/10.1122/1.4798559
2013-04-10
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Validity of the modified molecular stress function theory to predict the rheological properties of polymer nanocomposites
http://aip.metastore.ingenta.com/content/sor/journal/jor2/57/3/10.1122/1.4798559
10.1122/1.4798559
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