1 Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China 2 College of Materials and Chemical Engineering, Hainan University, Haikou 570228, China 3 College of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China
Abstract: Microwave absorber based on butadiene styrene rubber (SBR) composite with molybdenum disulfide (MoS2) and multi-walled carbon nanotubes (MWCNTs) was prepared by a mechanical blending method. With their synergetic effect in morphology and property, the combination of MoS2 and MWCNTs endows an improved dispersion in SBR matrix, thus providing the composite with better electromagnetic loss network. The MoS2/MWCNTs/SBR composite shows a reflection loss (RL) of -37.07 dB as well as an effective absorption band (RL<-10 dB) of 2.08 GHz, which are both better than that of MoS2 or MWCNTs solely incorporated SBR composite. This enhanced electromagnetic performance is attributed to its better impedance matching and dielectric loss. Additionally, the incorporation of nanofillers significantly improves the mechanical property of SBR, the tensile strength of fillers-filled SBR composites are more than 10 times as high as that of neat SBR. Although the use of dual-fillers slightly impacts the mechanical property of resulted composites when it compared with MWCNTs/SBR or MoS2/SBR composites, it still can be used in some structural demanding fields.
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2020, Vol. 34 
