Carbon dioxide foaming of glassy polymers

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

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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
Wessling, Matthias ; Borneman, Zandrie ; van den Boomgaard, Anthonie ; Smolders, C.A. ; Smolders, C.A. / Carbon dioxide foaming of glassy polymers. In: Journal of applied polymer science. 1994 ; Vol. 1994, No. 53. pp. 1497-1512.
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Wessling, M, Borneman, Z, van den Boomgaard, A, Smolders, CA & Smolders, CA 1994, 'Carbon dioxide foaming of glassy polymers' Journal of applied polymer science, vol. 1994, no. 53, pp. 1497-1512. https://doi.org/10.1002/app.1994.070531112

Carbon dioxide foaming of glassy polymers. / Wessling, Matthias; Borneman, Zandrie; van den Boomgaard, Anthonie; Smolders, C.A.; Smolders, C.A.

In: Journal of applied polymer science, Vol. 1994, No. 53, 1994, p. 1497-1512.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Carbon dioxide foaming of glassy polymers

AU - Wessling, Matthias

AU - Borneman, Zandrie

AU - van den Boomgaard, Anthonie

AU - Smolders, C.A.

AU - Smolders, C.A.

PY - 1994

Y1 - 1994

N2 - 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

AB - 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

KW - METIS-106907

KW - IR-12726

U2 - 10.1002/app.1994.070531112

DO - 10.1002/app.1994.070531112

M3 - Article

VL - 1994

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JO - Journal of applied polymer science

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