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Helium gas permeability of silicate clay (montmorillonite) particles/epoxy nanocomposites was examined. The incorporation of increasing amounts of montmorillonite particles reduced the helium gas permeability. Based on Fick’s law, gas permeation behavior of the nanocomposite was evaluated. With the increase of montmorillonite loading, gas diffusivity decreased, while gas solubility increased. Helium...
Multi-walled carbon nanotubes (MW-CNTs) were dispersed throughout a thermosetting polyimide Triple A PI (TriA-PI). TriA-PI is a newly developed phenylethynyl terminated polyimide, and exhibits excellent mechanical properties and processability with high glass transition temperature (Tg>300 o C). The resulting composites containing 3.3, 7.7, 14.3wt% MW-CNT exhibited relatively good dispersion...
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