Graphene-Filled Polymer Composites

Based on the kind of interaction between graphene sheets and polymers, the graphene-polymer composite can be mainly classified into two types graphene-filled polymer composites and polymer-functionalized graphene. 

Therefore, it can be seen from the above expression that is closely related to absorption loss (SE ). SE is also important for porous structures (e.g., foams) and for certain type of filled composites (carbon nanofibers [CNFs]/carbon nanotubes [CNTs]/graphene-filled polymers) or for certain design geometries (e.g., honeycomb lattices) [1,2,9,13,81]. It can be neglected in the case of a shield having thick absorbing elements due... 

Mao et al. had tuned the morphology to improve the electrical properties of graphene filled immiscible polymer blends. PS and PMMA blends filled with octadecylamine-functionalized graphene (GE-ODA) were fabricated to obtain conductive composites with a lower electrical percolation threshold. The dependence of the electrical properties of the composites on the morphology was examined by changing the proportion of PS and PMMA. The electrical conductivity of the composites was optimal when PS and PMMA phases formed a co-continuous structure. For the PS/PMMA blend (50 wt/50 wt), the composites exhibited an extremely low electrical percolation threshold (0.5 wt%) because of the formation of a perfect double percolated structure (Mao et al. 2012). 

Mao Cui, Zhu Yutian, and Jiang Wei. Design of electrical conductive composites Tuning the morphology to improve the electrical properties of graphene filled immiscible polymer blends. ACS Appl. Mater. Interf. 4 no. 10 (2012) 5281-5286. 

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