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Effect of Graphene Sheet Size on Electrical Conductivity and Percolation of Graphene Aerogel/Epoxy Composites
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Zhenyu Shen, Xi Wu, Ying Zheng, Qingbin Kim, Jang-Kyo |
| Copyright Year | 2017 |
| Abstract | By varying the size of precursor graphene oxide (GO) sheets, unidirectional graphene aerogels (UGAs) with a wide range of density, alignment and electrical conductivity are prepared. UGAs prepared using ultralarge graphene oxide (UL-UGA) exhibit a low density, a high degree of alignment and a high electrical conductivity. Solid epoxy composites prepared by infiltrating liquid epoxy resin into the UL-UGA structure exhibit an ultralow percolation threshold of 0.0066 vol.%, and a unique anisotropic electrical conductivity. In addition to its electrical conductivity, UL-UGA is shown to be an effective toughening filler, capable of increasing the fracture toughness of epoxy by 69% at 0.11 vol.% graphene content. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.iccm-central.org/Proceedings/ICCM21proceedings/papers/3434.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
