Chemical Reactions during the Processing Of Stabilized Pe; Structure/Property Correlations

Edina Epacher, E. Fekete, Markus Gahleitner, B. Pukánszky

Research output: Contribution to journalArticle

Abstract

Interesting correlations were observed in an optimization project directed towards the development of a recipe for blown film production. Analysis of the data and additional experiments indicated that some reactions take place during the processing of stabilized PE which also change the structure of the polymer. Modification of the rheological properties of the polymer and the mechanical characteristics of blown films can be related to these chemical processes. A close correlation was found among basically all rheological and mechanical properties. A tentative explanation was given which relates chemistry to the structure of the polymer and the properties of the product. According to the hypothesis long chain branches are formed during processing which decrease MFI, change the orientation of the film in the perpendicular direction and result in a considerable decrease in the strength of the blown films.

Original languageEnglish
Pages (from-to)149-166
Number of pages18
JournalPeriodica Polytechnica: Chemical Engineering
Volume42
Issue number2
Publication statusPublished - 1998

Fingerprint

Chemical reactions
Polymers
Processing
Mechanical properties
Experiments

Keywords

  • Discolouration
  • Film properties
  • Long chain branching
  • Multiple extrusion
  • Rheology
  • Thermal degradation

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Chemical Reactions during the Processing Of Stabilized Pe; Structure/Property Correlations. / Epacher, Edina; Fekete, E.; Gahleitner, Markus; Pukánszky, B.

In: Periodica Polytechnica: Chemical Engineering, Vol. 42, No. 2, 1998, p. 149-166.

Research output: Contribution to journalArticle

@article{1d3391af91914fdbb693c2b87fc778e9,
title = "Chemical Reactions during the Processing Of Stabilized Pe; Structure/Property Correlations",
abstract = "Interesting correlations were observed in an optimization project directed towards the development of a recipe for blown film production. Analysis of the data and additional experiments indicated that some reactions take place during the processing of stabilized PE which also change the structure of the polymer. Modification of the rheological properties of the polymer and the mechanical characteristics of blown films can be related to these chemical processes. A close correlation was found among basically all rheological and mechanical properties. A tentative explanation was given which relates chemistry to the structure of the polymer and the properties of the product. According to the hypothesis long chain branches are formed during processing which decrease MFI, change the orientation of the film in the perpendicular direction and result in a considerable decrease in the strength of the blown films.",
keywords = "Discolouration, Film properties, Long chain branching, Multiple extrusion, Rheology, Thermal degradation",
author = "Edina Epacher and E. Fekete and Markus Gahleitner and B. Puk{\'a}nszky",
year = "1998",
language = "English",
volume = "42",
pages = "149--166",
journal = "Periodica Polytechnica: Chemical Engineering",
issn = "0324-5853",
publisher = "Budapest University of Technology and Economics",
number = "2",

}

TY - JOUR

T1 - Chemical Reactions during the Processing Of Stabilized Pe; Structure/Property Correlations

AU - Epacher, Edina

AU - Fekete, E.

AU - Gahleitner, Markus

AU - Pukánszky, B.

PY - 1998

Y1 - 1998

N2 - Interesting correlations were observed in an optimization project directed towards the development of a recipe for blown film production. Analysis of the data and additional experiments indicated that some reactions take place during the processing of stabilized PE which also change the structure of the polymer. Modification of the rheological properties of the polymer and the mechanical characteristics of blown films can be related to these chemical processes. A close correlation was found among basically all rheological and mechanical properties. A tentative explanation was given which relates chemistry to the structure of the polymer and the properties of the product. According to the hypothesis long chain branches are formed during processing which decrease MFI, change the orientation of the film in the perpendicular direction and result in a considerable decrease in the strength of the blown films.

AB - Interesting correlations were observed in an optimization project directed towards the development of a recipe for blown film production. Analysis of the data and additional experiments indicated that some reactions take place during the processing of stabilized PE which also change the structure of the polymer. Modification of the rheological properties of the polymer and the mechanical characteristics of blown films can be related to these chemical processes. A close correlation was found among basically all rheological and mechanical properties. A tentative explanation was given which relates chemistry to the structure of the polymer and the properties of the product. According to the hypothesis long chain branches are formed during processing which decrease MFI, change the orientation of the film in the perpendicular direction and result in a considerable decrease in the strength of the blown films.

KW - Discolouration

KW - Film properties

KW - Long chain branching

KW - Multiple extrusion

KW - Rheology

KW - Thermal degradation

UR - http://www.scopus.com/inward/record.url?scp=0032259638&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032259638&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032259638

VL - 42

SP - 149

EP - 166

JO - Periodica Polytechnica: Chemical Engineering

JF - Periodica Polytechnica: Chemical Engineering

SN - 0324-5853

IS - 2

ER -