Few Layer Graphene sticking by biofilm of freshwater diatom Nitzschia palea as a mitigation to its ecotoxicity Original Research Article Carbon, Available online 16 November 2016, Pages M. Garacci, M. Barret, F. Mouchet, C. Sarrieu, P. Lonchambon, E. Flahaut, L. Gauthier, J. Silvestre, E. Pinelli
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| Strong flexible polymer/graphene composite films with 3D saw-tooth folding for enhanced and tunable electromagnetic shielding Original Research Article Carbon, Available online 16 November 2016, Pages Bin Shen, Yang Li, Da Yi, Wentao Zhai, Xingchang Wei, Wenge Zheng
Graphical abstractStrong flexible polymer/graphene composite films with ideal electromagnetic interference (EMI) shielding are fabricated through constructing a sandwich structure consisting of polyester non-woven fabric as reinforcing interlayer and thermoplastic polyurethane (TPU) composite with high graphene loading as conductive coating layer. The engineered sandwich film (defined as TPU/G film) with graphene loading of ∼20 wt% and total coating thickness of ∼50 μm not only possesses excellent mechanical flexibility and strong strength, but also exhibits qualified bandwidth of shielding effectiveness (SE) ≥ 20 dB as wide as ∼49.1 GHz in a broadband frequency range of 5.4–59.6 GHz. Moreover, saw-tooth folding of the flexible TPU/G films could efficiently enhance the shielding performance, and more conductive folded film with smaller included angle plus longer side would result in much greater SE enhancement along with reduced EM reflection. This finding also realizes the convenient performance regulation of the folded TPU/G films through a simple mechanical deformation, showing promise for tunable EMI shielding.Image 1
| Dielectric and mechanical properties of polyimide composite films reinforced with graphene nanoribbon Original Research Article Surface and Coatings Technology, Available online 16 November 2016, Pages Xiaoxu Liu, Yanpeng Li, Wenmao Guo, Xiaonan Sun, Yu Feng, Duo Sun, Yuanyuan Liu, Kai Yan, Zhonghua Wu, Bo Su, Jinghua Yin | |
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