Thermoplastic elastomers based on compatibilized poly(ethylene terephthalate) blends

Effect of rubber type and dynamic curing

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63 Citations (Scopus)

Abstract

Thermoplastic elastomers containing poly(ethylene terephthalate) (PET) in 50 wt%, compatibilizer (glycidyl methacrylate grafted rubber or glycidyl methacrylate containing copolymer) in 30 wt% and various rubbers (20 wt%) were produced by melt blending with and without dynamic curing (dicumyl peroxide initiated). The static tensile (stress-strain behaviour) and dynamic mechanical thermal properties (DMTA) of the systems along with their phase morphology (scanning electron microscopy of cryofractured and etched surfaces) were determined. It was found that the blend compatibility with PET is strongly improved when a high acrylonitrile-containing nitrile rubber (NBR) and an ethylene-glycidyl methacrylate copolymer (EGMA) or a GMA grafted ethylene/propylene rubber (EPR-g-GMA) are used as rubber and/or compatibilizer in the blend recipes. The effect of dynamic curing on the tensile and DMTA properties of the blends was negligible. Fractographic inspection of the fractured surface showed the development of a co-continuous phase structure which was in accordance with learnings from the DMTA spectra.

Original languageEnglish
Pages (from-to)1109-1120
Number of pages12
JournalPolymer (United Kingdom)
Volume42
Issue number3
Publication statusPublished - 2001

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Thermoplastic elastomers
Polyethylene Terephthalates
Rubber
Polyethylene terephthalates
Curing
Thermodynamic properties
Compatibilizers
Ethylene
Copolymers
Acrylonitrile
Nitriles
Phase structure
Peroxides
Tensile stress
Propylene
Paramagnetic resonance
Inspection
Scanning electron microscopy
glycidyl methacrylate

Keywords

  • Glycidyl methacrylate functionalization
  • Poly(ethylene terephthalate)
  • Thermoplastic elastomer

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

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title = "Thermoplastic elastomers based on compatibilized poly(ethylene terephthalate) blends: Effect of rubber type and dynamic curing",
abstract = "Thermoplastic elastomers containing poly(ethylene terephthalate) (PET) in 50 wt{\%}, compatibilizer (glycidyl methacrylate grafted rubber or glycidyl methacrylate containing copolymer) in 30 wt{\%} and various rubbers (20 wt{\%}) were produced by melt blending with and without dynamic curing (dicumyl peroxide initiated). The static tensile (stress-strain behaviour) and dynamic mechanical thermal properties (DMTA) of the systems along with their phase morphology (scanning electron microscopy of cryofractured and etched surfaces) were determined. It was found that the blend compatibility with PET is strongly improved when a high acrylonitrile-containing nitrile rubber (NBR) and an ethylene-glycidyl methacrylate copolymer (EGMA) or a GMA grafted ethylene/propylene rubber (EPR-g-GMA) are used as rubber and/or compatibilizer in the blend recipes. The effect of dynamic curing on the tensile and DMTA properties of the blends was negligible. Fractographic inspection of the fractured surface showed the development of a co-continuous phase structure which was in accordance with learnings from the DMTA spectra.",
keywords = "Glycidyl methacrylate functionalization, Poly(ethylene terephthalate), Thermoplastic elastomer",
author = "N. Papke and J. Karger-Kocsis",
year = "2001",
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journal = "Polymer",
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T1 - Thermoplastic elastomers based on compatibilized poly(ethylene terephthalate) blends

T2 - Effect of rubber type and dynamic curing

AU - Papke, N.

AU - Karger-Kocsis, J.

PY - 2001

Y1 - 2001

N2 - Thermoplastic elastomers containing poly(ethylene terephthalate) (PET) in 50 wt%, compatibilizer (glycidyl methacrylate grafted rubber or glycidyl methacrylate containing copolymer) in 30 wt% and various rubbers (20 wt%) were produced by melt blending with and without dynamic curing (dicumyl peroxide initiated). The static tensile (stress-strain behaviour) and dynamic mechanical thermal properties (DMTA) of the systems along with their phase morphology (scanning electron microscopy of cryofractured and etched surfaces) were determined. It was found that the blend compatibility with PET is strongly improved when a high acrylonitrile-containing nitrile rubber (NBR) and an ethylene-glycidyl methacrylate copolymer (EGMA) or a GMA grafted ethylene/propylene rubber (EPR-g-GMA) are used as rubber and/or compatibilizer in the blend recipes. The effect of dynamic curing on the tensile and DMTA properties of the blends was negligible. Fractographic inspection of the fractured surface showed the development of a co-continuous phase structure which was in accordance with learnings from the DMTA spectra.

AB - Thermoplastic elastomers containing poly(ethylene terephthalate) (PET) in 50 wt%, compatibilizer (glycidyl methacrylate grafted rubber or glycidyl methacrylate containing copolymer) in 30 wt% and various rubbers (20 wt%) were produced by melt blending with and without dynamic curing (dicumyl peroxide initiated). The static tensile (stress-strain behaviour) and dynamic mechanical thermal properties (DMTA) of the systems along with their phase morphology (scanning electron microscopy of cryofractured and etched surfaces) were determined. It was found that the blend compatibility with PET is strongly improved when a high acrylonitrile-containing nitrile rubber (NBR) and an ethylene-glycidyl methacrylate copolymer (EGMA) or a GMA grafted ethylene/propylene rubber (EPR-g-GMA) are used as rubber and/or compatibilizer in the blend recipes. The effect of dynamic curing on the tensile and DMTA properties of the blends was negligible. Fractographic inspection of the fractured surface showed the development of a co-continuous phase structure which was in accordance with learnings from the DMTA spectra.

KW - Glycidyl methacrylate functionalization

KW - Poly(ethylene terephthalate)

KW - Thermoplastic elastomer

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