1, graphene is a new material with single-layer and two-dimensional honeycomb lattice structure, and sp2 hybrid carbon atoms are closely packed.

2. Graphene has excellent optical, electrical and mechanical properties, and has important application prospects in the fields of material science, micro-nano processing, energy, biomedicine and drug delivery, and is considered as a revolutionary material in the future. Graphene has a good thermal insulation effect as a thermal insulation coaster.