Compatibilization of Immiscible PA6/PLA Nanocomposites Using Graphene Oxide and PTW Compatibilizer for High Thermal and Mechanical Applications

Abstract

The aim of this work is synthesis a novel nanocomposite containing Polylactide (PLA) and polyamide 6 (PA6) reinforced with graphene oxide (GO) and poly ethylene-butyl acrylate-glycidyl methacrylate) (PTW) compatibilizer during solvent-based method. For this purpose, GO was added to the nanocomposite with 0.1, 0.3, 0.5, 0.7 and 1 phr. Morphology, rheology and mechanical properties of nanocomposites were studied with scanning electron microscopy (SEM), transmission electron microscopy (TEM) and (DMTA) which showed rougher fracture surface due to the presence of compatibilizer and an increase in the amount of graphene oxide and better dispersion of graphene oxide. The results of experimental and theoretical studies of mechanical properties showed that increasing the concentration of graphene oxide in the presence of PTW improved the tensile strength, impact strength and tensile modulus in the PA6/PTW/PLA system. The study of rheological properties (according to the Carreau-Yasuda model) showed an increase in storage modulus and complex viscosity, which also confirmed the role of PTW compatibilizer in better GO dispersion. So, PA6/PTW/PLA is a good candidate for mechanical and high thermal applications.

Electrophoretic Deposition of 58S Bioactive Glass- Polymer Composite Coatings on 316L Stainless Steel: An Optimization for Corrosion, Bioactivity, and Cytocompatibility

“…Suspension stability is checked via a change in the rheological parameters characterized by the shear-thinning behavior, followed by stabilization Figure (c) represents the viscosity changes of the suspensions in IPA at varying polymer concentrations.…”

“…Suspension stability is checked via a change in the rheological parameters characterized by the shear-thinning behavior, followed by stabilization. 44 Uniform coating over the SS surface can be assessed via deposition yield, which reflects the efficiency with which particles in the suspension are deposited onto the metal surface. 21 While the zeta potential of the particles suspended in the nonaqueous medium affects the stability of the suspensions, the deposition yield, as a function of mass deposited, is dependent on the electric field distribution and the total time of deposition over the electrode geometry.…”

The Need for Smart Materials in an Expanding Smart World: MXene-Based Wearable Electronics and Their Advantageous Applications

“…The development of nanomaterials such as carbon nanotubes (CNTs), MXene, graphene, metallic nanoparticles and nanowires, conducting polymeric materials, and so on has made it feasible for textiles to undergo these groundbreaking developments and alterations. Electronic devices that are constructed on textiles have found widespread usage in a variety of contexts, including but not limited to thermal management, ,, flexible sensing and displays, real-time healthcare surveillance, , biomedical treatment, and others. In spite of the fact that a number of nanostructures have made it possible to create smart fabrics for wearable electronics, innovative 2D MXene has lately garnered increasing interest.…”

Multiscale modeling of hyperviscoelastic behavior of particulate rubber composites based on hybrid silica/carbon black filler system

“…However, the physical and mechanical behaviors of these materials are too complicated to be described by simple models 1,2 . This is due to the highly nonlinear and time‐dependent stress–strain properties of rubbery materials and also intricate interactions between filler particulates and rubber 3,4 . It is, therefore, inevitable to adopt complicated multicomponent models to properly predict the mechanical response of such composites under the applied loads.…”