Effects of repeated microcellular foaming process on cell morphology and foaming ratio of microcellular plastics

Jung Hwan Seo, Won Suk Ohm, Soo Hyun Cho, Sung W. Cha

Research output: Contribution to journalArticle

10 Citations (Scopus)


Microcellular plastics (MCPs) are manufactured through a batch process comprised of saturation and foaming stages. In the saturation process, gas molecules are dissolved into plastic in a high-pressure vessel. Following the saturation process, micro-cells are formed inside the plastic as the gas-dissolved plastic sample undergoes the foaming process. In this paper, we investigate the effects of repeating the batch process on the formation of MCPs. Because the plastic sample after the first batch process has developed microcells, these pre-existing cells are expected to affect the second round of the batch process. Of particular interest is the effect of repeated saturation at different saturation pressures. Experiments show that repeating the batch process can lead to favorable outcomes in terms of foaming ratio and cell morphology, which are otherwise unattainable particularly with a single batch process.

Original languageEnglish
Pages (from-to)588-592
Number of pages5
JournalPolymer - Plastics Technology and Engineering
Issue number6
Publication statusPublished - 2011 Jan 1


All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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