Properties of PVDF MoS2 Nanocomposite Influence of MoS2 Modifier

Abstract

In recent decades, numerous investigations are devoted to the research of polymer based composites. Breakthrough in this field is the inclusion of nanofillers in to the polymer matrix for enhanced properties. Polymer composites developed using Two Dimensional (2D) layered fillers is of immense interest to researchers and industrialists owing to their exceptional properties and advanced potential applications. Achieving uniform dispersion of layered nanostructures within the polymer matrix is challenging because of the agglomeration of nanostructures which occurs due to the Van der Waals attraction and the cohesive nature between the two phases. Layered nanostructures especially Transition Metal Dichalcogenides (TMDs)have received considerable attention owing to their unusual properties and extraordinary applications. Through proper modification of the exfoliated layered material, it can be made compatible with the polymer matrix and homogeneous dispersion can be attained. newlineThis research work, reports the modification of Molybdenum Disulfide (MoS2) using two diand#64256;erent modifiers namely Cetyl Trimethyl Ammonium Bromide (CTAB) and Lithium salt of 6- Amino Hexanoic Acid (Li-AHA). The extent of exfoliation and modification of MoS2 by both modifiers were analysed using spectroscopic and morphological characterization techniques. The structural investigation of modified MoS2 done using X-Ray Diand#64256;raction (XRD) showed decrease in the characteristic peak of MoS2 confirming the exfoliation. The Fourier Transform Infra Red (FTIR) results confirmed the organic modification of MoS2. The Scanning Electron Microscopy (SEM) depicted the morphology of exfoliated MoS2 flakes. The Raman spectroscopic results also indicated the exfoliation of bulk MoS2. The Transmission Electron Microscopy (TEM) analysis revealed highly transparent fewlayer MoS2 flakes for Li-AHA modified MoS2 (1:1 ratio).