biostudies-literatureGu WProvincial College Students' Innovation and Entrepreneurship Training ProgramPostgraduate Research and Practice Innovation Program of Jiangsu ProvinceChina Scholarships CouncilNational Nature Science Foundation of Chinae2204165https://www.ebi.ac.uk/biostudies/studies/S-EPMC9762302biostudies-literatureUnknown9(35)The development of infrared-radar compatible materials/devices is challenging because the requirements of material properties between infrared and radar stealth are contradictory. Herein, a composite of poly(3, 4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) coated melamine foam is designed to integrate the advantages of the dual materials and the created heterogeneous interface between them. The as-designed PEDOT:PSS@melamine composite shows excellent mechanical properties, outstanding thermal insulation, and improved thermal infrared stealth performance. The relevant superb radar stealth performance including the minimum reflection loss value of -57.57 dB, the optimum ultra-wide bandwidth of 10.52 GHz, and the simulation of radar cross section reduction value of 17.68 dB m² , can be achieved. The optimal specific electromagnetic wave absorption performance can reach up as high as 3263.02 dB·cm³ g^-1 . The average electromagnetic interference shielding effectiveness value can be 30.80 dB. This study provides an approach for the design of high-performance stealth materials with infrared-radar compatibility.Advanced science (Weinheim, Baden-Wurttemberg, Germany)A Lightweight, Elastic, and Thermally Insulating Stealth Foam With High Infrared-Radar Compatibility.PMC976230252273247202110287034Y51971111KYCX20_0190202106830067Fang YOng SJHJi GGu WGuo WShen YXu ZJfalseA Lightweight, Elastic, and Thermally Insulating Stealth Foam With High Infrared-Radar Compatibility.The development of infrared-radar compatible materials/devices is challenging because the requirements of material properties between infrared and radar stealth are contradictory. Herein, a composite of poly(3, 4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) coated melamine foam is designed to integrate the advantages of the dual materials and the created heterogeneous interface between them. The as-designed PEDOT:PSS@melamine composite shows excellent mechanical properties, outstanding thermal insulation, and improved thermal infrared stealth performance. The relevant superb radar stealth performance including the minimum reflection loss value of -57.57 dB, the optimum ultra-wide bandwidth of 10.52 GHz, and the simulation of radar cross section reduction value of 17.68 dB m² , can be achieved. The optimal specific electromagnetic wave absorption performance can reach up as high as 3263.02 dB·cm³ g^-1 . The average electromagnetic interference shielding effectiveness value can be 30.80 dB. This study provides an approach for the design of high-performance stealth materials with infrared-radar compatibility.2022-01-01T00:00:00Z2022 Dec2025-07-24T03:04:22.93Z2025-04-06T13:09:56.602ZS-EPMC97623023628568510.1002/advs.202204165