Graphene nanoplatelets in polychloroprene matrix: An insight to dispersion with a special emphasize to electro‐mechanical properties

Abstract

This work is based on the preparation of graphene‐reinforced elastomeric nanocomposites and an investigation on their electro‐mechanical properties with a special emphasize to electromagnetic interference (EMI) shielding. Polychloroprene rubber (CR) and commercial grade graphene‐based nanocomposites (GnPs) were prepared by using melt mixing and dual mixing (solution followed by melt) technique to study an insight into the dispersion and its effect on various properties namely, mechanical, thermal, conductivity, and EMI shielding, and so on. Dual mixing technique offers better dispersion of graphene platelets compared with melt mixing technique. Therefore, higher filler‐filled nanocomposites were prepared only by using dual mixing technique. A 0.5 wt% GnP containing batches showed 23% improvement in mechanical property in dual mixing technique compared with the 6% in melt mixing technique. Apart from that, it has been observed that upto 5 wt% GnP containing batches the mechanical property was improved using dual mixing technique whereas the same is observed upto 3 wt% GnP containing batches in case of melt mixing technique. 10 wt% GnP‐based nanocomposites prepared by using dual mixing technique shows 23 dB EMI shielding for 2‐mm thick sheet compound. Maximum 26 dB EMI shielding was observed at 15 wt% GnP containing nanocomposites. POLYM. COMPOS., 40:E1871–E1883, 2019. © 2018 Society of Plastics Engineers

Development of an efficient electrochemical sensing platform based on ter-poly(luminol-o-anisidine-o-toluidine)/ZnO/GNPs nanocomposites for the detection of antimony (Sb3+) ions

“…[42][43][44] Graphene nanoplatelets (GNPs) possess a high surface-area-to-volume ratio, are lightweight, easy to fabricate, and exible. 45,46 Research has demonstrated that the addition of nanoparticles improves interfacial bonding and enhances the mechanical, thermal, and electrical properties of composites. 47,48 To improve the performance of materials, extensive research has been conducted on the use of nanomaterials as reinforcements and llers in polymer composites, including GNPs and inorganic nanoparticles such as ZnO nanoparticles.…”

Utilization of Graphene Oxide in Building Materials

“…Nano-based materials were also incorporated in cementitious materials to upgrade the properties of CBM [25][26][27]. Graphene-based nanomaterials (GBN), an example of carbon-based nanomaterials, were first employed in polymeric matrices [28][29][30] to be used in various applications such as energy storage [31], bio-based applications [32] and sensors [33]. Depending on their synthesis method [34], various types of GBN are available such as graphene (GR), graphene oxide (GO) and reduced graphene oxide (rGO).…”

Graphene nanocomposites: A review on processes, properties, and applications

“…Graphene nanoplatelets (GNPs) composites have a high surface area to volume ratio, lightweight, easy to fabricate, and flexible [6][7][8]. The small amount of GNPs in neat composite improved its properties due to the enhancement of the interfacial region [9,10].…”

“…Figure 6. (a) Thermal-CVD and (b) Plasma-enhanced CVD processes where reactants transfer (1), thermal or plasma activation (2), from the main gas stream layer the boundary reactants transport through gas diffusion (3), adsorption of reactants (4), bulk diffusion of species (5), surface migration to the growth of the film (6), desorption of by-products(7), transport of byproducts (diffusion) and return to the main gas stream(8), and by-products transportation from the deposition area (9) By-products transportation from the deposition area; Reprinted with permission from[75].…”