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
Analysis of the material properties involved in laser sintering of thermoplastic polyurethane
KU Leuven—University of Leuven, Department of Mechanical Engineering, Leuven, Belgium.
Show others and affiliations
2017 (English)In: Additive Manufacturing, ISSN 2214-8604, Vol. 15, p. 12-19Article in journal (Refereed) Published
Abstract [en]

As laser sintering is increasingly being used for the production of actual end-use parts, there is considerable interest in developing materials that would enable new applications for this technique. Considering their properties and current applications, elastomeric polymers such as thermoplastic polyurethanes (TPU) have a very high potential in this regard. This study investigates the material properties that are involved in TPU sintering through the analysis of four distinct TPU grades. Examined parameters include powder flow, rheology of the melt and shrinkage and hardening behavior. It is found that, even though the particle morphology is not optimum, smooth and dense powder layers can be deposited for the investigated powders. Low melt viscosity and low shrinkage upon hardening further enable these materials to be easily processed into functional parts. Remaining issues, however, are part porosity and material degradation. The findings in this study provide clear links between material properties and behavior during laser sintering, and result in guidelines for future selection of TPU grades.

Place, publisher, year, edition, pages
2017. Vol. 15, p. 12-19
Keywords [en]
Laser sintering, Elastomer, Thermoplastic polyurethane, Thermal properties
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-251602DOI: 10.1016/j.addma.2017.03.001ISI: 000435751700002Scopus ID: 2-s2.0-85014916520OAI: oai:DiVA.org:kth-251602DiVA, id: diva2:1316076
Note

QC 20190619

Available from: 2019-05-15 Created: 2019-05-15 Last updated: 2019-06-18Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Dadbakhsh, Sasan
Materials Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 7 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