Development of Multi-Functional Graphene Polymer Composites Having Electromagnetic Interference Shielding and De-Icing Properties
Development of Multi-Functional Graphene Polymer Composites Having Electromagnetic Interference Shielding and De-Icing Properties
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DOI：
10.3390/polym11122101
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发表时间：
2019-12-01
期刊：
影响因子：
5
通讯作者：
Park, Sung-Hoon
中科院分区：
文献类型：
--
作者：
Ha, Ji-Hwan;Hong, Soon-Kook;Park, Sung-Hoon
我们开发了一种多功能石墨烯复合材料，具有电磁干扰(EMI)屏蔽和除冰性能。采用三辊球磨法将二维石墨烯填料均匀分散在聚合物中。测量了不同石墨烯含量的石墨烯复合材料的电学性能和渗流阈值。测量了石墨烯复合材料的电磁干扰屏蔽性能随填料含量的变化。屏蔽效率随着石墨烯填充量的增加而提高。此外，我们还对石墨烯复合材料进行了电加热试验。由于复合材料的高导电性，通过低电功率的电焦耳加热可以将复合材料快速加热到200℃。此外，该复合膜具有快速、均匀的加热性能，适合在除冰装置中应用。
We developed a multi-functional graphene composite with electromagnetic interference (EMI) shielding and de-icing properties. Two-dimensional graphene fillers were homogeneously dispersed in a polymer by three-roll milling. The electrical properties and percolation threshold of the graphene composites were measured with various graphene contents. The variation in the EMI shielding properties of the graphene composites with respect to the filler content was measured. The shielding efficiency improved with increasing graphene filler content. Furthermore, we conducted electrical heating tests on the graphene composites. The composites could be heated rapidly to 200 degrees C by electrical Joule heating with low electric power because of the high electrical conductivity of the composite. Moreover, the composite film was suitable for application in a de-icing unit because of its rapid and homogenous heating performance.