Improved microwave absorbing performance of natural rubber composite with multi‐walled carbon nanotubes and molybdenum disulfide hybrids

Abstract

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.

Investigating the Effect of Changing the Nanostructure of the Core in the Core–Shell Assembly for High-Efficiency Electromagnetic Wave Absorbers

“…Two-dimensional materials with ultra-thin-layered structures are convenient for constructing excellent EMW absorbers due to their large specific surface area and excellent electronic properties. − One of the most important and widely studied monolayer materials is molybdenum disulfide (MoS 2 ), which has excellent dielectric properties, unique morphology, and small band gaps. − Wang et al prepared palygorskite/MoS 2 nanocomposites by a hydrothermal method. The suitable minimum reflection loss (RL min ) was obtained at the thickness of 2.28 mm .…”

Stretchable piezo‐electric energy harvesting device with high durability using carbon nanomaterials with different structure and their synergism with molybdenum disulfide

“…[43] Moreover, the addition of MoS 2 particles significantly improve the EMI properties of the composites and very useful for many such applications. [43] The effect of different structure of nanofillers both in single and hybrid form and different concentration on mechanical properties were investigated and demonstrated.…”

“…There are studies on MWCNT and CB in hybrid with MoS 2 in different polymer composites [42,43] but their applications for piezo-electric energy harvesting in silicone rubber has received less attention and not understood fully yet. In previous work, Manikkavel et al demonstrate a robust piezo-electric energy harvesting device based on HTV and RTV silicone rubber and MWCNT but a lower voltage ($1 V) was generated.…”

“…[ 42 ] In some studies, researchers use MoS 2 in hybrid with MWCNT and carbon black to improve the mechanical and electrical properties of the composites. [ 43 ] Moreover, the addition of MoS 2 particles significantly improve the EMI properties of the composites and very useful for many such applications. [ 43 ] The effect of different structure of nanofillers both in single and hybrid form and different concentration on mechanical properties were investigated and demonstrated.…”

Structure regulation of boron‐doped calcium hydroxystannate and its enhancement on flame retardancy and mechanical properties of PVC

“…To further enhance the performance in special aspects, chemical functionalization such as heteroatom doping endows materials with good biocompatibility, EMI shielding properties, electromagnetic properties, and thermal stability 21‐24 . As for the improvement on flame retardancy, heteroatom (P, N, and transition metal)‐doping have been reported as efficient synergistic agents 25‐28 .…”