Electrical conductivity is the capstone of graphene’s suite of property enhancements. Highly mobile “pi” electrons can travel in the planar dimensions of a graphene platelet with a very high electron mobility. With most epoxy, polymer and paint materials, an antistatic level of electrical conductivity can be achieved. Unlike carbon black, electrical conductivity can be achieved without sacrificing mechanical strength –even at comparatively high loading levels. This electrical conductivity can also be imparted to polymer masterbatch, conductive pastes, and filaments for additive manufacturing (3d printing).
Another benefit of electrical conductivity is EMI shielding. At low loading levels, graphene nanoplatelets can add 30 decibels of EMI shielding in the range of 8-13 GHz. With optimum formulation, graphene can produce lightweight, chemically inert, and cost effective EMI shielding paints and coatings.
The long term dream of every graphene formulator is near-metallic conductivity. Imagine a conductive ink that can be applied with ink jet printer, rotograveur, or screen printing to create lightweight, flexible electronic circuits. Imagine a conductive filament or paste that can be deposited by an additive manufacturing process, creating active circuits in three dimensional objects. Ultimately, a pattern-able, spray-able graphene-based coating could be used to create nano-scale circuits in the 21st century wafer fab.
Contact Angstron Materials to discuss your electrical conductivity needs and talk about the most effective graphene products for your formulation needs.