Abstract
The Dynamic mechanical analysis (DMA) and Atomic force microscopy (AFM) studies were conducted and evaluated on polypropylene/kaolin (P/K) nanocomposite treated with maleic anhydride (MA) and dicumyl peroxide (DCP) as additives in an in- situ process. Two-roll mill was used in compounding of the nanocomposites while moulding were done by injection moulding machine. Investigation in to the effect of K and MA/DCP on the nanocomposites (NCs) indicates that interfacial interactions between PP and K as filler was eminent. DMA analysis reveals an increase in the storage modulus which was at maximum significantly in P/K NC with 3 wt% and decrease in damping factor tan δ also at P/K NC of 3 wt%. The AFM study indicates that there was uniform and smooth surface roughness among the NCs. Thus, addition of MA/DCP on to P/K NC improves the reinforcing influence on the nanocomposites for better improvement.
Highlights
In the preparation of polymer nanocomposites, nanoscale fillers are integrated into a pure polymer matrix to improve its properties if compared to that of the conventional polymer matrix
Scientific instruments used in characterization of polymer nanocomposites are either destructive in principle due to particles emission like X-ray diffraction (XRD) or successive sample treatments like transmission electron microscopy (TEM) owing to sample preparation procedure involved
This is closely followed by polypropylene/kaolin/maleic anhydride/dicumyl peroxide (PKMDCP) 1 and PKMDCP 5 respectively, while the untreated P/K still misbehave cutting across the treated NCs from low tan δ at lower temperature to high at high temperature
Summary
In the preparation of polymer nanocomposites, nanoscale fillers are integrated into a pure polymer matrix to improve its properties if compared to that of the conventional polymer matrix Subject to this characteristic transformation, two-dimensional platelet nanofillers are known for their interfacial interaction and dynamic mechanical improvement as well as dimensional stability [1]. Scarce research work has been conducted using a non-destructive techniques (AFM) which is similar to XRD [5] To this effect significant discoveries yielded the fast development of PP production amid its thermoplastic equivalents inspired by its attractive combination of acceptable properties which allowed easy processing and diverse applications. The P/K NCs obtained where characterized by DMA and AFM for possible improved interfacial interaction and an upgraded material for superior application
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