BaFe 12 O 19 /graphene/polyaniline coatings for flexible fabrics with enhanced microwave absorption
Source abstract
Abstract
In this study, barium ferrite (BaFe 12 O 19 ) was used as the basic microwave-absorbing material and compounded with graphene and PANI. Then, BaFe 12 O 19 , BaFe 12 O 19 /graphene, and BaFe 12 O 19 /graphene/PANI were mixed with waterborne polyurethane and coated on nylon fabrics by the cast coating method to prepare flexible microwave absorbing materials. The microwave absorbing performance of BaFe 12 O 19 /graphene/PANI coated fabric is significantly improved in comparison with BaFe 12 O 19 and BaFe 12 O 19 /graphene coated fabric, which mainly comes from the synergistic effects of magnetic loss, dielectric loss, and conductivity loss. The BaFe 12 O 19 /graphene/PANI coated fabric has a minimum reflection loss value of –37.36 dB (at 13.76 GHz) and an effective absorption bandwidth of 5.40 GHz (12.44–17.84 GHz) when the thickness is 1.2 mm. Consequently, the facile preparation route and excellent performance make the BaFe 12 O 19 /graphene/PANI composite a promising candidate for efficient microwave absorbence.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Textile Science and Engineering, Xi'an Polytechnic University, China
Key Laboratory of Functional Textile Material and Product (Xi'an Polytechnic University), Ministry of Education, China
Funding
National Natural Science Foundation of China · This research was supported by Natural Science Basic Research Program of Shaanxi
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