Will Graphene replace Mylar?
That's the wrong question, I think. Mylar is simply the support for the conductive aluminum layer in a planar driver - since graphene is as conductive as copper and as strong as steel, there will be no need for the support layer. Imagine pure ribbons, one atom thick, carrying the signal in a magnetic field. They will be the ultimate ribbon driver if the cost and scale-up hurdles can be managed!
That's the wrong question, I think. Mylar is simply the support for the conductive aluminum layer in a planar driver - since graphene is as conductive as copper and as strong as steel, there will be no need for the support layer. Imagine pure ribbons, one atom thick, carrying the signal in a magnetic field. They will be the ultimate ribbon driver if the cost and scale-up hurdles can be managed!