Synthesis and Growth Mechanism of White‐Fungus‐Like Nickel Sulfide Microspheres, and Their Application in Polymer Composites with Enhanced Microwave‐Absorption Properties

Abstract

Abstract White‐fungus‐like NiS x microspheres have been synthesized on a large scale by using a simple hydrothermal method. The influence of the reaction time and the surfactant on the final products was investigated, and the formation mechanism was discussed. The synthesized white‐fungus‐like NiS x microspheres were used firstly as fillers in the fabrication of NiS x /polyvinylidene fluoride (PVDF) composites. Relationships between the loadings of the NiS x and wave‐absorption properties of the composites were analyzed. The loss mechanisms of NiS x /PVDF with different loadings were also discussed according to their dielectric and magnetic behaviors.