Multiwalled carbon nanotube/montmorillonite hybrid filled ethylene‐co‐vinyl acetate nanocomposites with enhanced mechanical properties, thermal stability, and dielectric response

Abstract

Homogeneous multiwalled carbon nanotube/montmorillonite hybrid filler (HMM) dispersion was prepared by co‐ultrasonication and was subsequently used to prepare ethylene‐co‐vinyl acetate (EVA) nanocomposites by solution blending method. XRD and TEM analysis of HMM confirm significant interaction between the montmorillonite (MMT) layers and multiwalled carbon nanotubes (MWCNT) in line with previous reports. Analysis of the nanocomposites shows the constituent fillers to be homogeneously dispersed in EVA matrix. Mechanical properties of neat EVA are remarkably improved with HMM content up to 3 wt% followed by reversion. Maximum improvement observed in tensile strength, elongation at break, and toughness are 424%, 109%, and 1122%, respectively. Results show maximum thermal stability at 4 wt% and best dielectric response at 1 wt% HMM content. Exceptional mechanical and dielectric properties of EVA nanocomposites attained may be attributed to homogeneous dispersion of fillers and improved polymer–filler interaction. Comparison shows excellent synergy between MWCNT and MMT towards mechanical reinforcement of EVA. POLYM. ENG. SCI., 58:1155–1165, 2018. © 2017 Society of Plastics Engineers

Improvement in mechanical properties of NBR/AO60/MMT composites by surface hydrogen bond

“…The aggregation state of MMT in rubber composites can be readily visible by using TEM technology . Comparing Figure 6A with (B) graphs at 0.5 μm level, much more large bulks of MMT are found in the NBR/30M composite.…”

Hybrid Nanocarbons Reinforced Rubber Nanocomposites: Detailed insights about Mechanical, Dynamical Mechanical Properties, Payne and Mullin Effects

“…The tensile strength, elongation at break, and toughness showed maximum improvements corresponding to 424, 109, and 1122 %, respectively. In another study, EVA)/MWCNTs/Hectorite (4 wt.%) nanocomposites showed significant improvement in tensile strength (243%), elongation at break (105%) and toughness (426%) without significant change in Young's modulus [209].…”

Electrical conductivity of poly(vinyl alcohol)/carbon nanotube multilayer thin films: Influence of sodium polystyrene sulfonate mediated carbon nanotube dispersion

“…Carbon nanotubes (CNTs) with their high aspect ratio and an unique combination of its superior electrical, mechanical, thermal and elastic properties are considered as an ideal nanomaterial to be utilized as nano‐fillers, in the fabrication of multi‐functional polymer nano‐composites. [ 1‐3 ] Polymer/CNT composites have been investigated for their remarkable electrical conductivity, enabling them as promising candidates for applications such as conducting electrodes, [ 4 ] batteries, solar cells, supercapacitors, [ 5 ] fuel cells and sensors, [ 6 ] OLEDs, [ 7 ] biomedical devices etc. [ 8 ] The essential criteria for the effective use of CNTs in polymer composites are its excellent dispersion and distribution among the polymer matrix.…”