▎ 摘　　要

NOVELTY - A layered brick-wall structure flame retardant material comprises lamellar inorganic nanomaterial and a polymer. The lamellar inorganic nanomaterial is ordered in the polymer. USE - Layered brick-wall structure flame retardant material. ADVANTAGE - The flame retardant material has improved in flame retardant performance and is capable of reducing the oxygen transmission rate to 7.98 cm3/m2/day/0.1 MPa. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation of flame retardant material comprising dispersing lamellar inorganic nano-material in pure water, collect the supernatant by centrifugation, and evaporating; configuring 10% polymer solution of polyamic acid salt or polyimide or 5% polyethylene alcohol, polyethyleneimine, polyacrylamide, chitosan, sodium carboxymethylcellulose, polydopamine or polyvinylamine; and mixing layered inorganic nano-colloid and the polymer solution, vacuum filtering, arranging lamellar inorganic nanomaterials in the filter cake in an orderly manner under the action of pressure, and drying.