石墨烯纳米带堆叠和环氧树脂复合材料用于表面焦耳加热和除冰。
Composites of Graphene Nanoribbon Stacks and Epoxy for Joule Heating and Deicing of Surfaces.
机构信息
St. John's School, 2401 Claremont Lane, Houston, Texas 77019, United States.
Faculty of Chemistry and Chemical Technology, University of Ljubljana , Vecna pot 113, 1000 Ljubljana, Slovenia.
出版信息
ACS Appl Mater Interfaces. 2016 Feb 10;8(5):3551-6. doi: 10.1021/acsami.5b11131. Epub 2016 Jan 29.
A 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.
制备了一种石墨烯纳米带（GNR）堆叠和环氧树脂的导电复合材料。环氧树脂中填充了 GNR 堆叠，作为导电添加剂。GNR 堆叠的平均厚度为 30nm，宽度为 250nm，长度为 30μm。在 5wt%GNR 含量下，GNR 填充环氧树脂复合材料的电导率>100S/m。这使得 GNR-环氧树脂复合材料可以通过复合材料两端的电压产生的焦耳（电压诱导）加热来除冰。在-20°C 的环境下，将 0.5W/cm(2)的功率密度施加到一个静态直升机旋翼叶片表面，以去除 1cm 厚（14g）的冰。
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