Synergetic impacts of two rigid nano‐scale inclusions on the mechanical and thermal performance of POM/carbon black/CaCO₃ ternary nanocomposite systems

Abstract

In the present contribution, the mechanical and thermal characteristics of polyoxymethylene (POM)/carbon black (CB)/CaCO3 (NCC) ternary nanocomposites were assessed through mechanical tests and morphological observations. Scanning electron microscopy (SEM) micrographs indicated the uniform distribution of nanoparticles in the matrix. Dynamic mechanical thermal analysis (DMTA) revealed a promotion of elastic response and lower energy dissipation in ternary nanocomposites against neat POM and single‐filled POM/CB samples. Tensile strength results showed the increase of tensile modulus and strength by 27% and 8% for the ternary nanocomposite compared to binary POM/CB. Flexural and impact properties were also enhanced with the inclusion of NCC as a second rigid phase. SEM observations of impact‐fractured surfaces at high magnifications revealed full and partial debonding of nanoparticles from the matrix and consequent cavitation in the matrix, which mainly contributed to impact toughening. Hashin‐Shtrikman model was employed to analyze its efficiency to predict Young's modulus of ternary nanocomposite systems.

Mechanical, morphological, and numerical evaluation of biocompatible ultra‐high molecular weight polyethylene/nano‐zeolite nanocomposites

“…It is worth noting that a prior study (Ref. [84]) also reported filler‐induced cavitation in the presence of NZ and its contribution to impact toughening.…”

Morphology-Driven Nanofiller Size Measurement Integrated with Micromechanical Finite Element Analysis for Quantifying Interphase in Polymer Nanocomposites

“…Nanocomposite materials have gained substantial attention across various applications due to their ability to exhibit remarkable properties even with a relatively low concentration of dispersed nanoreinforcements. − The effectiveness of these nanoparticles hinges on two critical factors: their uniform dispersion throughout the polymer matrix and their robust bonding. − Achieving these prerequisites necessitates effective surface engineering of particle surfaces to enhance compatibility and overcome interparticle forces. − This process aims to customize the interfacial properties between the particles and polymer matrix by enhancing the compatibility and ultimately overcoming interparticle forces . A pragmatic method for assessing the degree of particle bonding entails estimation of the interphase region characteristics adjacent to the nanofiller.…”

Modeling effective elastic and thermal conductivity of composite materials reinforced with plastic waste: Analytical and numerical approaches

“…Previous numerical studies have primarily focused on analyzing microstructures limited to 2D or composed of regular arrays of simple shapes, such as cubes, spheres, or cylinders, which can be accurately represented through repeating unit cells. [32][33][34] Mohsenzadeh et al [35] assessed the thermal and mechanical properties of POM/CB/NCC ternary nanocomposites using SEM and DMTA. The ternary nanocomposites displayed superior elastic behavior and reduced energy dissipation in comparison to both neat POM and POM/CB samples.…”