Effect of clay surface modification on the polymer nanocomposite foam structure

Xiangmin Han*, Changchun Zeng, Maxwell J. Wingert, L. James Lee, Kurt W. Koelling, David L. Tomasko

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations


Nanoclay can work as a nucleation agent to control foam cell structure and reinforcement to enhance foam properties. In this paper, the clay surface is modified by a reactive quaternary ammonium surfactants and grafted with either poly(methyl methacrylate) (PMMA) or polystyrene (PS). The polystyrene and the polymer modified clay nanocomposites are synthesized by in-situ polymerization and extrusion compounding. By using CO2 as the foaming agent, the nanocomposite foams are prepared in a single screw extruder. It is found that the surface modification has a great influence on the foam morphology. The presence of more CO2-philic PMMA on the clay surface leads to a lower melt viscosity.

Original languageEnglish
Number of pages5
StatePublished - May 2004
EventANTEC 2004 - Annual Technical Conference Proceedings - Chicago, IL., United States
Duration: 16 May 200420 May 2004


ConferenceANTEC 2004 - Annual Technical Conference Proceedings
Country/TerritoryUnited States
CityChicago, IL.


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