Effect of annealing on viscoplasticity of polymer blends: Experiments and modeling

A. D. Drozdov; J. De C. Christiansen; R. Klitkou; C. G. Potarniche

doi:10.1016/j.commatsci.2010.07.007

Effect of annealing on viscoplasticity of polymer blends: Experiments and modeling

A. D. Drozdov, J. De C. Christiansen, R. Klitkou, C. G. Potarniche

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

2 Scopus citations

Abstract

Observations are reported on polypropylene/polyethylene blends with various concentrations of components in uniaxial tensile tests at ambient temperature. Three types of blends are analyzed: (i) non-annealed, (ii) annealed below the melting temperature of polyethylene, and (iii) subjected to thermal treatment above this temperature. A constitutive model is developed for the viscoplastic behavior of polymer blends that treats a semicrystalline polymer as a two-phase composite medium. The stress-strain relations involve four adjustable parameters that are found by fitting the observations. The model is applied to examine the effect of annealing on elastic moduli of amorphous and crystalline phases.

Original language	English
Pages (from-to)	59-64
Number of pages	6
Journal	Computational Materials Science
Volume	50
Issue number	1
DOIs	https://doi.org/10.1016/j.commatsci.2010.07.007
State	Published - 1 Nov 2010
Externally published	Yes

Keywords

Constitutive modeling
Polymer blends
Semicrystalline polymers
Viscoplasticity

ASJC Scopus subject areas

General Computer Science
General Chemistry
General Materials Science
Mechanics of Materials
General Physics and Astronomy
Computational Mathematics

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10.1016/j.commatsci.2010.07.007

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abstract = "Observations are reported on polypropylene/polyethylene blends with various concentrations of components in uniaxial tensile tests at ambient temperature. Three types of blends are analyzed: (i) non-annealed, (ii) annealed below the melting temperature of polyethylene, and (iii) subjected to thermal treatment above this temperature. A constitutive model is developed for the viscoplastic behavior of polymer blends that treats a semicrystalline polymer as a two-phase composite medium. The stress-strain relations involve four adjustable parameters that are found by fitting the observations. The model is applied to examine the effect of annealing on elastic moduli of amorphous and crystalline phases.",

keywords = "Constitutive modeling, Polymer blends, Semicrystalline polymers, Viscoplasticity",

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year = "2010",

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T1 - Effect of annealing on viscoplasticity of polymer blends

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AU - Drozdov, A. D.

AU - Christiansen, J. De C.

AU - Klitkou, R.

AU - Potarniche, C. G.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - Observations are reported on polypropylene/polyethylene blends with various concentrations of components in uniaxial tensile tests at ambient temperature. Three types of blends are analyzed: (i) non-annealed, (ii) annealed below the melting temperature of polyethylene, and (iii) subjected to thermal treatment above this temperature. A constitutive model is developed for the viscoplastic behavior of polymer blends that treats a semicrystalline polymer as a two-phase composite medium. The stress-strain relations involve four adjustable parameters that are found by fitting the observations. The model is applied to examine the effect of annealing on elastic moduli of amorphous and crystalline phases.

AB - Observations are reported on polypropylene/polyethylene blends with various concentrations of components in uniaxial tensile tests at ambient temperature. Three types of blends are analyzed: (i) non-annealed, (ii) annealed below the melting temperature of polyethylene, and (iii) subjected to thermal treatment above this temperature. A constitutive model is developed for the viscoplastic behavior of polymer blends that treats a semicrystalline polymer as a two-phase composite medium. The stress-strain relations involve four adjustable parameters that are found by fitting the observations. The model is applied to examine the effect of annealing on elastic moduli of amorphous and crystalline phases.

KW - Constitutive modeling

KW - Polymer blends

KW - Semicrystalline polymers

KW - Viscoplasticity

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M3 - Article

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SN - 0927-0256

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EP - 64

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ER -

Effect of annealing on viscoplasticity of polymer blends: Experiments and modeling

Abstract

Keywords

ASJC Scopus subject areas

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