Abstract
A two-step process was used to prepare PP/MAPP/C15A/MWNT ternary nanocomposites system. The effect of the addition of MWNT on the delamination of clay layers in the polymer matrix has been studied through XRD. The similar crystallinity level was noticed after the addition of clay and MWNT together in the PP matrix through XRD. Higher mechanical properties of the ternary nanocomposites system were noticed than neat PP and its binary nanocomposites systems. Differential scanning calorimeter (DSC) technique was utilized to investigate the effect of both nanofillers on crystallization temperature (TC). And a shift in TC towards higher temperature was noticed in all the nanocomposites. Thermogravimetric analysis revealed an improved thermal stability of the ternary nanocomposites system. The dynamic mechanical response of PP and its binary and ternary nanocomposite systems was evaluated. The dispersion of the nanoparticles was investigated employing transmission electron microscopy (TEM). The combined effect of clay and MWNT on the properties of PP was investigated and summarized.
Highlights
Polymers, reinforced with nanoscaled fillers, developed an advanced multifunctional material with improved properties which can be used in many fields ranging from microelectronics to aerospace
The Dynamic Mechanical Analysis (DMA) analysis was conducted in dual cantilever mode at variable temperature using dynamic mechanical analyzer (DMA Q800; TA instruments) technique
Further the agglomerates observed in the PP/MAPP/C15A nanocomposites were absent in PP/MAPP/C15A/MWNT hybrids. This phenomenon is attributed to the improved interaction of MWNT and clay layers which facilitated the separation of stacks from each other thereby resulting in homogenous distribution within matrix polymer
Summary
Polymers, reinforced with nanoscaled fillers, developed an advanced multifunctional material with improved properties which can be used in many fields ranging from microelectronics to aerospace. The MWNT forms networked layers in polymer matrix, shielding the polymer from external radiation and flame. The mechanical properties of MWNT are exciting, since they are considered as the ultimate carbon material ever made Combination of these two fillers nanoclay and MWNT has attracted much of the current interest owing to their extended structure allowing for clay nanolayer and carbon nanotubes network assemblies. The aim of this work was to investigate the effect of incorporation of MWNT and layered silicates (MMT) based on nanoclay on the polypropylene (PP) matrix. The dynamic mechanical analysis of the PP and its binary and ternary nanocomposites has been performed in order to evaluate the molecular mobility transition such as glass transition. This study aimed to determine crystallization behaviour and thermal stability of ternary nanocomposites, using DSC and TGA techniques, respectively
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