Carbon dioxide foaming of glassy polymers

Matthias Wessling, Zandrie Borneman, Anthonie van den Boomgaard, C.A. Smolders, C.A. Smolders

Research output: Contribution to journalArticleAcademicpeer-review

36 Citations (Scopus)
74 Downloads (Pure)

Abstract

The mechanism of foaming a glassy polymer using sorbed carbon dioxide is studied in detail. A glassy polymer supersaturated with nitrogen forms a microcellular foam, if the polymer is quickly heated above its glass transition temperature. A glassy polymer supersaturated with CO2 forms this foam-like structure at much lower temperatures which indicates the Tg-depressing effect of CO2. Having this interpretation in mind, the overall sample morphology, i.e., a porous foam enclosed by dense outer skins, can be completely explained. The dense skins, however, are not homogeneous but show a nodular structure when analyzed by SEM and AFM. Foaming experiments with samples having a different thermal history suggest that the nucleation mechanism underlying the foaming process is heterogeneous in nature
Original languageUndefined
Pages (from-to)1497-1512
Number of pages16
JournalJournal of applied polymer science
Volume1994
Issue number53
DOIs
Publication statusPublished - 1994

Keywords

  • METIS-106907
  • IR-12726

Cite this

Wessling, M., Borneman, Z., van den Boomgaard, A., Smolders, C. A., & Smolders, C. A. (1994). Carbon dioxide foaming of glassy polymers. Journal of applied polymer science, 1994(53), 1497-1512. https://doi.org/10.1002/app.1994.070531112