Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Understanding in the morphology and tensile behavior of isotactic polypropylene cast films with different stereo-defect distribution
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0003-2201-2806
Show others and affiliations
2014 (English)In: Journal of polymer research, ISSN 1022-9760, E-ISSN 1572-8935, Vol. 21, no 6, 485- p.Article in journal (Refereed) Published
Abstract [en]

In this study, two iPP resins with similar molecular weight and average isotacticity but different uniformities of stereo-defect distribution were used in the production of cast films. The crystalline morphology and orientation, and tensile behavior during room temperature stretching of the cast films were investigated by scanning electronic microscopy (SEM), 2D-wide angle X-ray diffraction (2D-WAXD) and 2D-small-angle X-ray scattering (2D-SAXS). It was found that under fixed processing condition, iPP with more uniform stereo-defect distribution (PP2) favors the formation of row nucleated lamellar structure during cast film production, and therefore exhibiting hard-elastic deformation behavior during stretching; meanwhile, the sample with less uniform stereo-defect distribution (PP1) shows un-oriented spherulitical morphology in the cast film, and typical plastic deformation behavior during stretching. The crystallization and rheological analysis on the iPP raw materials revealed that, the uniformity of stereo-defect distribution determines the ability of nucleation and crystallization, and further influences the response of the crystalline morphology to the elongation effect of cast film production process, which is of great importance in the structure-property design in the production of iPP membranes.

Place, publisher, year, edition, pages
2014. Vol. 21, no 6, 485- p.
Keyword [en]
Isotactic polypropylene, Stereo-defect distribution, Morphology and orientation, Tensile behavior
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-147036DOI: 10.1007/s10965-014-0485-5ISI: 000336396900001Scopus ID: 2-s2.0-84901553939OAI: oai:DiVA.org:kth-147036DiVA: diva2:728494
Note

QC 20140624

Available from: 2014-06-24 Created: 2014-06-23 Last updated: 2017-12-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Authority records BETA

Liu, Dongming

Search in DiVA

By author/editor
Liu, Dongming
By organisation
Fibre and Polymer Technology
In the same journal
Journal of polymer research
Polymer Technologies

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 82 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf