Work

Study on FDM preparation and properties of Fe/PLA/TPU for microwave absorption

Year: 2025

Type: article

Abstract: As radar technology advances, the demands on electromagnetic stealth capabilities continue to increase. Therefore, developing broadband, high-absorption materials is crucial for fabricating effective wave-absorbing structures. This work fabricated Fe/Polylactic Acid/Thermoplastic Polyurethane (Fe/PLA/TPU) composite filaments and coaxial rings using fused deposition modeling (FDM) technology. The experimental data reveal that as the Fe content rises, the dispersed particles progressively form a continuous network within the matrix. This structural evolution enhances interfacial polarization effects, substantially boosting the composite's microwave absorption performance. Specifically, the developed material achieves an impressive absorption bandwidth (EAB) of 6.56 GHz (10.14-16.9 GHz) with a maximum reflection loss (RL) of -69.48 dB at merely 2 mm thickness. Additionally, the tensile and bending strengths of the composites were 14.9 MPa and 9.8 MPa, respectively. This research result provides effective support for the application of electromagnetic stealth technology.

Source: Materials Today Communications

DOI: 10.1016/j.mtcomm.2025.114438

Authors: Songlu Xiao, Qingshan Wang, Shaokang Liu, Pinchen Luo, Weicheng Liao, Mengchen Jin, Xing Zhao

Institutions: Central South University, State Key Laboratory of High Performance Complex Manufacturing

Language: English

Topic: Electromagnetic wave absorption materials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,830