▎ 摘　　要

NOVELTY - Preparing flexible flame-retardant coating involves synthesizing of thermoelectrically responsive layered nanomaterials, dispersing the layered nanomaterials uniformly in first solvent. The monomer is added and adjusted the reaction temperature to (-)10-100 degrees C. The oxidant dissolved is added in the second solvent, and continued to keep stirring and reacted for 8-36 hours after drop is finished. The reaction solution is allowed to keep to room temperature, centrifuged, and precipitate is washed and dried to obtain thermoelectric-responsive layered nanomaterial. The monomer is one or two of 3,4-ethylenedioxythiophene and pyrrole. The oxidant is one or two of ferric chloride, ferric nitrate, ferric p-toluenesulfonate and ammonium persulfate. The flexible flame-retardant coating is prepared. USE - Method for preparing flexible flame-retardant coating for plastics, wood and foam materials (claimed). ADVANTAGE - The method enables to prepare flexible flame-retardant coating that has precise temperature detection function, requires high fire safety. DETAILED DESCRIPTION - Preparing flexible flame-retardant coating involves synthesizing of thermoelectrically responsive layered nanomaterials, dispersing the layered nanomaterials uniformly in first solvent. The monomer is added and adjusted the reaction temperature to (-)10-100 degrees C. The oxidant dissolved is added in the second solvent, and continued to keep stirring and reacted for 8-36 hours after drop is finished. The reaction solution is allowed to keep to room temperature, centrifuged, and precipitate is washed and dried to obtain thermoelectric-responsive layered nanomaterial. The monomer is one or two of 3,4-ethylenedioxythiophene and pyrrole. The oxidant is one or two of ferric chloride, ferric nitrate, ferric p-toluenesulfonate and ammonium persulfate. The flexible flame-retardant coating is prepared. The long-chain polymer and thermoelectrically responsive layered nanomaterial synthesized are dispersed uniformly in the third solvent to form mixed dispersion. The mixed dispersion is coated on the flammable substrate. The process of coating and drying is repeated 1-16 times to prepare flexible flame-retardant coating with sensitive temperature sensing and fire warning functions. The long-chain polymer is one or more of polyvinyl alcohol, polyvinyl butyral, hydropropyl methyl cellulose, carboxymethyl cellulose and carboxymethyl chitosan.