Transparent clay-reinforced epoxy nanocomposites
- Michigan State Univ., East Lansing, MI (United States)
A great deal of research has been conducted on organic-inorganic hybrid composite in which smectite clays are used as reinforcement agents. However, little work has been devoted to derivatives of layered silicic acids. This is the first work showing that alkylammonium exchanged magadtite can be exfoliated by in vita intragallery polymerization during the epoxy thermoset process. The exfoliated epoxy-magadtite nanocomposites possessed unique transparent optical properties. By using different onium ions, we obtained intercalated and exfoliated epoxy-magadtite nanocomposites. When the matrix was flexible (subambient Tg), both the tensile strength and modulus increased with increasing silicate content. We have quantitatively demonstrated the dependence of mechanical properties on the extent of silicate layer separation. We also have investigated the effect of long chain alkylammonium ions on the mechanical behavior of the nanocomposites.
- OSTI ID:
- 370637
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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