umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
Thermal conductivity of highly crystallized polyethylene
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2014 (English)In: Polymer, ISSN 0032-3861, E-ISSN 1873-2291, Vol. 55, no 1, 195-200 p.Article in journal (Refereed) Published
Abstract [en]

We report thermal conductivity (kappa) of low-density, high-density and ultra-high density polyethylene (PE) with different crystallinity and microstructures. PE was crystallized under high-pressure and high-temperature conditions which produce extended chain crystals. By applying a two-phase model, we estimate kappa of 100% crystallized PE as a function of pressure and temperature. The increased crystallinity and lamellar thickness (fold length) reduce the thermal resistance, which is reflected not only in the absolute value of kappa but also in more pronounced pressure and temperature dependencies approaching those of polycrystalline low-molecular weight materials. The results suggest that it is crucial to increase the lamellar thickness to significantly improve kappa of PE with randomly oriented lamellae.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 55, no 1, 195-200 p.
Keyword [en]
Polyethylene, Thermal conductivity, Crystallinity
National Category
Polymer Chemistry Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-86333DOI: 10.1016/j.polymer.2013.12.001ISI: 000330207100025OAI: oai:DiVA.org:umu-86333DiVA: diva2:698730
Available from: 2014-02-25 Created: 2014-02-24 Last updated: 2017-12-05

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Yu, JunchunSundqvist, BertilTonpheng, BounphanhAndersson, Ove
By organisation
Department of Physics
In the same journal
Polymer
Polymer ChemistryPhysical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 360 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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