Researchers at Beijing Institute of Technology are studying the fabrication of nanocomposites using low-dimensional nanomaterials, such as nanoparticles, nanotubes, nanorods, nanoneedles and nanosheets, as well as investigating the related physical properties of the final samples.

The results so far demonstrate that alignment of graphene nanosheets using the split-press-merge process delivers a material with enhanced absorption and reflection performance. This is due to improved conducting interconnection and enlarged effective reflection regions, resulting in an enhancement in EMI shielding.

It is notable to see that the split-press-merge approach could be applied to align various two-dimensional materials in matrices with good expandability, such as paraffin. This technology not only demonstrates a way to fabricate high-performance EMI shielding composites, but also provides a route to modify the physical properties of the sample by changing the distribution state of fillers with various applications.

Full details can be found in the journal Nanotechnology.