Multicomponent nanocomposites demonstrate many properties that are not found in their mono‐counterparts. Here, natural rubber (NR) composites with improved electromagnetic properties were prepared via incorporating hybrids of one‐dimensional multi‐walled carbon nanotubes (MWCNTs) and two‐dimensional molybdenum disulfide (MoS2). Evidenced by the morphological results, the restacking of MoS2 and the tortuous of MWCNTs are effectively inhibited due to the depletion‐effect of the different dimensional nanoblocks. Owing to the synergetic effect of MWCNTs and MoS2, the resulted NR/MWCNTs/MoS2 nanocomposites showed higher electromagnetic properties than their NR/MWCNTs and NR/MoS2 counterparts did. The reflection loss of NR/MWCNTs/MoS2 composites with 5 vol% MWCNTs and 5 vol% MoS2 is −49.04 dB, which is 9.2 and 21.9 times stronger than that of sole MWCNTs or MoS2 filled NR composites, respectively. Such composite with excellent microwave capacity could be used as a new kind of candidate for the new types of microwave absorbing materials.

Oleylamine (OA) modified silica (SiO 2-g-OA) was prepared using γ-(2,3-epoxypropoxy) propytrimethoxysilane (KH560) and OA, silica/natural rubber (NR) and SiO 2-g-OA/NR composites were prepared by mechanical blending in an internal mixer, and SiO 2-g-OA was characterized by Fourier transform infrared spectroscopy, thermal gravimetric analyzer, and contact angle analyzer. The mechanical properties, abrasion resistance, curing characteristics, Payne effect, and morphology of silica/NR and SiO 2-g-OA /NR composites were investigated using universal testing machine, Akron abrasion tester, rubber processing analyzer, and scanning electron microscope, respectively. The results showed that SiO 2-g-OA became more hydrophobic and had better compatibility with NR. Moreover, SiO 2-g-OA/NR had weaker Payne effect, better vulcanization performance, and more excellent mechanical properties. As the content of filler was more than 30 phr, SiO 2-g-OA/NR had lower rolling resistance and higher wet skid resistance. Compared with silica modified by other coupling agents, SiO 2-g-OA had the best reinforcement effect on NR.