Foaming of nanoclay reinforced PS/PMMA polymer blends

Xiangmin Han*, L. James Lee, Hanxiong Huang

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations


Nanoclay reinforced polymer blends exhibit high potential as a new material for CO2 foaming because they can provide higher CO 2 solubility, lower gas diffusivity, and better mechanical properties than foams made of homopolymers. In this paper, a polystyrene (PS)/poly(methyl methacrylate) (PMMA)/nanoclay blend was selected to study the relationship among blend morphology, nanoparticle distribution, and foam structure. PMMA serves as the dispersed domain in PS. Blends with different morphology were obtained by changing the nanoclay content and the screw configuration, which were then foamed by using CO2 in a batch system. Effects of nanoclay content on the blend morphology, rheological properties, and foam morphology were studied. It is found that the highest foam nucleation efficiency appears at the interface of PS/PMMA/nanoclay.

Original languageEnglish
Number of pages5
StatePublished - 2005
EventSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States
Duration: 1 May 20055 May 2005


ConferenceSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005
Country/TerritoryUnited States
CityBoston, MA


  • Blend
  • CO
  • Foam
  • Nanocomposite


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