Design of Multifunctional Composites: New Strategy to Save Energy and Improve Mechanical Performance

Nanomaterials
Liberata GuadagnoLuigi Vertuccio

Abstract

In this paper, an alternative curing strategy, based on the application of an electric field, is proposed to harden nano-filled multifunctional resins. The resin is obtained through the dispersion of carbon nanotubes, which act as nanometric heater elements in the epoxy matrix. The electro-curing is activated by applying an external electric voltage, which allows tunable cross-linking within the epoxy matrix entrapped between the nanotubes. The electro-curing method allows reaching higher curing degrees with respect to the conventional ones and, consequently, higher glass transition temperatures. This is a direct consequence of the fact that the curing reactions start directly in the regions at the interphase between carbon nanotubes, acting as heater nano-filaments, and the polymeric matrix. The proposed method is able to give composites better properties, making the curing process fast and energy-saving.

References

Mar 22, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Johanna ReuberDiethelm Johannsmann
Apr 2, 2010·Journal of Nanoscience and Nanotechnology·Liberata GuadagnoSalvatore Russo
Aug 19, 2015·Nature Communications·Jianfeng PingTerry W J Steele

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Citations

Apr 4, 2021·Nanomaterials·Liberata GuadagnoLuigi Vertuccio

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Methods Mentioned

BETA
transmission electron microscopy

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