Research progress in preparation technology of 2D material-based flame retardants
Two-dimensional materials(2D)refer to materials in which electrons can only move freely on two dimensions of nanometer scale.Due to their unique layered structure,high specific surface area and good chemical modifiability,they have a wide application prospect in the fields of physics,chemistry and nanotechnology.In addition,different 2D nanomaterials have potential conductivity,high thermal conductivity,catalytic activity and ultraviolet resistance,which can meet the special needs of different materials.When 2D materials are used as flame retardants,they can form effective physical barriers,improve the thermal stability of the substrate,reduce the flammability of the materials,and ensure the safety of the materials.In this paper,the preparation technology and flame retardancy of 2D materials such as layered double hydroxides(LDHs),transition metal disulfides(TMDs),black phosphorus(BP)and hexagonal boron nitride(h-BN)used as flame retardants were described in detail,and the future research and development direction of 2D materials was also prospected.
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