Abstract
ABSTRACT Adjusting fibers shape can further optimize absorbing properties of the FeSiAlp/PP fibers composites. 80 wt% FeSiAlp/PP rhombic cross-sectional fibers were successfully prepared by liquid phase blending and extrusion drawing. The strength of the fibers is about 6 ~ 8 MPa. The effective absorption bandwidth (EAB, RL < −10 dB) of the resin matrix composites modified by rhombic cross-sectional fibers is 3.9 GHz and the optimal RL reaches −18.43 dB at 4.5 GHz. Compared with the resin matrix composites modified by circular cross-sectional fibers, the EAB increases by 1.8 GHz and there is a second absorption peak, which has better broadband absorption characteristics.
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