▎ 摘　　要

NOVELTY - Petal-shaped ferroferric oxide-based complex wave absorbing agent comprises graphene, petaloid ferroferric oxide and polyaniline, where the petaloid ferroferric oxide is distributed on the graphene, the polyaniline is coated on the surface of graphene and petaloid ferroferric oxide, and the polyaniline is coated on the interface where the graphene contacts the petaloid ferroferric oxide. USE - Used as petal-shaped ferroferric oxide-based complex wave absorbing agent. ADVANTAGE - The wave absorbing agent has a stronger maximum wave absorption strength and a wider and efficient absorption frequency band. DETAILED DESCRIPTION - INDEPENDENT CLAIM is also included for: (1) preparation of petaloid ferroferric oxide-based complex wave absorbing agent comprising (1) adding ferric chloride hexahydrate, urea, tetrabutylammonium bromide and graphene oxide to ethylene glycol, condensing, refluxing in an oil bath for 30-45 minutes, centrifuging, collecting the product, washing and drying to obtain reduced graphene oxide/ Iron alkoxide powder, (2) performing calcination of the reduced graphene oxide/iron alkoxide powder in a nitrogen atmosphere, raising to 450-500 degrees C and performing calcination at this temperature for 3-5 hours, and natural cooling to obtain reduced graphene oxide/petal-type iron oxide powder, (3) adding reduced graphene oxide/petal-type iron oxide powder and polyvinylpyrrolidone in water, stirring, adding a mixed solution of aniline and hydrochloric acid, stirring in an ice-water bath, slowly adding ammonium persulfate aqueous solution dropwise, continuing to stir in an ice-water bath environment, washing, performing centrifugal recovery and drying to obtain the petal-type ferroferric oxide-based complex wave absorbing agent; and (2) wave absorbing material comprising a molding material and a complex wave absorbing agent.