Viscoelastic properties of crosslinked LLDPE films biaxially oriented at temperatures below melting point

A. L. Bobovitch; Y. Unigovski; E. M. Gutman; E. Kolmakov; S. Vyazovkin

doi:10.1002/app.25148

Viscoelastic properties of crosslinked LLDPE films biaxially oriented at temperatures below melting point

A. L. Bobovitch, Y. Unigovski, E. M. Gutman, E. Kolmakov, S. Vyazovkin

Department of Materials Engineering

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

4 Scopus citations

Abstract

Creep and stress-relaxation of linear low-density polyethylene (LLDPE) crosslinked with β-irradiation was studied as a function of irradiation dose. It was shown that both storage modulus and α-relaxation are influenced by irradiation. An influence of relatively low gel content on stress relaxation was detected. However, the creep results showed an increase of the creep strain when the polymer is irradiated with a dose below 4 Megarad (MR) in comparison with a nonirradiated film. This increase corresponded to the disorientation in the amorphous phase, which takes place as a result of the film heating during irradiation. This disorientation was demonstrated by differential scanning calorimetry (DSC) and X-ray analysis.

Original language	English
Pages (from-to)	3718-3723
Number of pages	6
Journal	Journal of Applied Polymer Science
Volume	103
Issue number	6
DOIs	https://doi.org/10.1002/app.25148
State	Published - 15 Mar 2007

Keywords

Creep
Crosslinking
Orientation
Polyethylene films
Stress relaxation
β-irradiation

ASJC Scopus subject areas

General Chemistry
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.25148

Cite this

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title = "Viscoelastic properties of crosslinked LLDPE films biaxially oriented at temperatures below melting point",

abstract = "Creep and stress-relaxation of linear low-density polyethylene (LLDPE) crosslinked with β-irradiation was studied as a function of irradiation dose. It was shown that both storage modulus and α-relaxation are influenced by irradiation. An influence of relatively low gel content on stress relaxation was detected. However, the creep results showed an increase of the creep strain when the polymer is irradiated with a dose below 4 Megarad (MR) in comparison with a nonirradiated film. This increase corresponded to the disorientation in the amorphous phase, which takes place as a result of the film heating during irradiation. This disorientation was demonstrated by differential scanning calorimetry (DSC) and X-ray analysis.",

keywords = "Creep, Crosslinking, Orientation, Polyethylene films, Stress relaxation, β-irradiation",

author = "Bobovitch, {A. L.} and Y. Unigovski and Gutman, {E. M.} and E. Kolmakov and S. Vyazovkin",

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TY - JOUR

T1 - Viscoelastic properties of crosslinked LLDPE films biaxially oriented at temperatures below melting point

AU - Bobovitch, A. L.

AU - Unigovski, Y.

AU - Gutman, E. M.

AU - Kolmakov, E.

AU - Vyazovkin, S.

PY - 2007/3/15

Y1 - 2007/3/15

N2 - Creep and stress-relaxation of linear low-density polyethylene (LLDPE) crosslinked with β-irradiation was studied as a function of irradiation dose. It was shown that both storage modulus and α-relaxation are influenced by irradiation. An influence of relatively low gel content on stress relaxation was detected. However, the creep results showed an increase of the creep strain when the polymer is irradiated with a dose below 4 Megarad (MR) in comparison with a nonirradiated film. This increase corresponded to the disorientation in the amorphous phase, which takes place as a result of the film heating during irradiation. This disorientation was demonstrated by differential scanning calorimetry (DSC) and X-ray analysis.

AB - Creep and stress-relaxation of linear low-density polyethylene (LLDPE) crosslinked with β-irradiation was studied as a function of irradiation dose. It was shown that both storage modulus and α-relaxation are influenced by irradiation. An influence of relatively low gel content on stress relaxation was detected. However, the creep results showed an increase of the creep strain when the polymer is irradiated with a dose below 4 Megarad (MR) in comparison with a nonirradiated film. This increase corresponded to the disorientation in the amorphous phase, which takes place as a result of the film heating during irradiation. This disorientation was demonstrated by differential scanning calorimetry (DSC) and X-ray analysis.

KW - Creep

KW - Crosslinking

KW - Orientation

KW - Polyethylene films

KW - Stress relaxation

KW - β-irradiation

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JF - Journal of Applied Polymer Science

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ER -

Viscoelastic properties of crosslinked LLDPE films biaxially oriented at temperatures below melting point

Abstract

Keywords

ASJC Scopus subject areas

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