Advanced Thermoset Nanocomposites, Phase I

Low-cost, environmentally compatible synthesis methods are used to prepare silicate nanoparticles with surface areas, surface polarity and hierarchical lamellar and mesoporous structures ideally suited as barrier and reinforcing agents for epoxy and polyimide thermoset polymers for use in next generation air transport systems (NGATS) and related aerospace vehicles. Unlike organoclays, which require temperature-sensitive organic modification for dispersion in polymer matrices, the new nanoparticles require no organic surface modification to achieve compatibility in the polymer matrix. Thus, thermoset nano-composites made from Claytec's purely inorganic nanoparticles exhibit superior thermal and oxidative stability, in addition to improved strength, stiffness and toughness. The technical objective of the proposal is to provide silicate nanoparticles that will improve substantially the thermal and oxidative stability properties, as well as the mechanical properties, of epoxy and polyimide polymers without the need for organic surface modifiers to achieve particle dispersion in the polymer matrix. The specific tasks associated with the proposed research project are (i) the synthesis and characterization of lamellar and mesoporous silicate nanoparticle suitable as barrier and reinforcing agents, respectively (ii) the preparation of representative epoxy and polyimide thermoset nanocomposites containing well-dispersed lamellar and mesoporous nanoparticles and (iii) the characterization of the nanocomposites with regard to oxygen permeability, oxidative stability, and tensile and impact properties.

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

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