Study on structure, thermal behavior and viscoelastic properties of nanodiamond-reinforced poly (Vinyl alcohol) nanocomposites
Date
2021Author
Remis, TomasBelsky, Petr
Kovarik, Tomas
Kadlec, Jaroslav
Azar, Mina Ghafouri
Medlin, Rostislav
Vavrunkova, Veronika
Deshmukh, Kalim
Sadasivuni, Kishor Kumar
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Show full item recordAbstract
In this work, advanced polymer nanocomposites comprising of polyvinyl alcohol (PVA)
and nanodiamonds (NDs) were developed using a single-step solution-casting method. The proper ties of the prepared PVA/NDs nanocomposites were investigated using Raman spectroscopy, small and wide-angle X-ray scattering (SAXS/WAXS), scanning electron microscopy (SEM), transmission
electron microscopy (TEM), thermogravimetric analysis (TGA), differential scanning calorimetry
(DSC), and dynamic mechanical analysis (DMA). It was revealed that the tensile strength improved
dramatically with increasing ND content in the PVA matrix, suggesting a strong interaction between
the NDs and the PVA. SEM, TEM, and SAXS showed that NDs were present in the form of agglom erates with an average size of ~60 nm with primary particles of diameter ~5 nm. These results
showed that NDs could act as a good nanofiller for PVA in terms of improving its stability and
mechanical properties.
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