AI Article Synopsis
- Ceramic-polymer nanocomposites were created using hydroxylated BaSrTiO₃ nanoparticles and poly(vinylidenefluoride) via a solution casting method, showing improved dielectric properties.
- The dielectric constant of the composites with hydroxylated nanoparticles was significantly higher, peaking at 36 for the sample with 40 vol % BST⁻NPs⁻OH.
- The optimized composites also achieved a maximum energy density of 3.9 J/cm³ with enhanced breakdown strength, suggesting a promising method for developing advanced materials in energy storage.
Article Abstract
Ceramic-polymer nanocomposites, consisting of surface hydroxylated cube-shaped BaSrTiO₃ nanoparticles (BST⁻NPs) as fillers and poly(vinylidenefluoride) (PVDF) as matrix, have been fabricated by using a solution casting method. The nanocomposites exhibited increased dielectric constant and improved breakdown strength. Dielectric constants of the nanocomposite with surface hydroxylated BST⁻NPs (BST⁻NPs⁻OH) were higher as compared with those of their untreated BST⁻NPs composites. The sample with 40 vol % BST⁻NPs⁻OH had a dielectric constant of 36 (1 kHz). Different theoretical models have been employed to predict the dielectric constants of the nanocomposites, in order to compare with the experimental data. The BST⁻NPs⁻OH/PVDF composites also exhibited higher breakdown strength than their BST⁻NP/PVDF counterparts. A maximal energy density of 3.9 J/cm³ was achieved in the composite with 5 vol % BST⁻NPs⁻OH. This hydroxylation strategy could be used as a reference to develop ceramic-polymer composite materials with enhanced dielectric properties and energy storage densities.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432593 | PMC |
| http://dx.doi.org/10.3390/polym8020045 | DOI Listing |
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