| Literature DB >> 33925200 |
Tomáš Remiš1, Petr Bělský1, Tomáš Kovářík1, Jaroslav Kadlec1, Mina Ghafouri Azar1, Rostislav Medlín1, Veronika Vavruňková1, Kalim Deshmukh1, Kishor Kumar Sadasivuni2.
Abstract
In this work, advanced polymer nanocomposites comprising of polyvinyl alcohol (PVA) and nanodiamonds (NDs) were developed using a single-step solution-casting method. The properties 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 agglomerates 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.Entities:
Keywords: mechanical properties; morphology; nanocomposite; nanodiamond; poly (vinyl alcohol)
Year: 2021 PMID： 33925200 DOI： 10.3390/polym13091426
Source DB: PubMed Journal: Polymers (Basel) ISSN： 2073-4360 Impact factor: 4.329