> If the 2D sheets would be small enough to slide over each other and insert between other sheet fragments, so that plastic deformation would be possible, then

> If the 2D sheets would be small enough to slide over each other and insert between other sheet fragments, so that plastic deformation would be possible, then they would also lose any advantages over traditional polymers. I suspect that as with many composites, these qualities fall along a spectrum, and that there are significant nonlinearities (as in "a little goes a long way") that can be usefully exploited.