Composites of Graphene Nanoribbon Stacks and Epoxy for Joule Heating and Deicing of Surfaces
2016; American Chemical Society; Volume: 8; Issue: 5 Linguagem: Inglês
10.1021/acsami.5b11131
ISSN1944-8252
AutoresAbdul‐Rahman O. Raji, Tanvi Varadhachary, Kewang Nan, Tuo Wang, Jian Lin, Yongsung Ji, Boštjan Genorio, Yu Zhu, Carter Kittrell, James M. Tour,
Tópico(s)Thermal properties of materials
ResumoA conductive composite of graphene nanoribbon (GNR) stacks and epoxy is fabricated. The epoxy is filled with the GNR stacks, which serve as a conductive additive. The GNR stacks are on average 30 nm thick, 250 nm wide, and 30 μm long. The GNR-filled epoxy composite exhibits a conductivity >100 S/m at 5 wt % GNR content. This permits application of the GNR-epoxy composite for deicing of surfaces through Joule (voltage-induced) heating generated by the voltage across the composite. A power density of 0.5 W/cm(2) was delivered to remove ∼1 cm-thick (14 g) monolith of ice from a static helicopter rotor blade surface in a -20 °C environment.
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