Highly Flexible and Visibly Transparent Poly(vinyl alcohol)/Calcium Zincate Nanocomposite Films for UVA Shielding Applications As Assessed by Novel Ultraviolet Photon Induced Fluorescence Quenching
作者： Nithin Kundachira Subramani , Shilpa Kasargod Nagaraj , Sachhidananda Shivanna , Hatna Siddaramaiah
DOI: 10.1021/ACS.MACROMOL.5B02282
关键词: Nanocomposite 、 Dielectric 、 Composite number 、 Zincate 、 Chemical engineering 、 Scanning electron microscope 、 Materials science 、 Vinyl alcohol 、 Dielectric loss 、 Fourier transform infrared spectroscopy
摘要: Herein we report the successful fabrication of highly flexible, reversibly stretchable, transparent, and conductive poly(vinyl alcohol) (PVA) nanocomposite (NC) films with a hydrophobic surface by reinforcing varying amounts, viz., 0, 0.5, 1, 2, 4 wt %, calcium zincate (Ca0.2Zn0.8O) nanofillers. The developed show appreciable UVA screening efficacies as established novel (UV-transillumination studies) method. Fourier transform infrared (FTIR) studies reveal positive interaction between PVA matrix incorporated nanofiller, while scanning electron microscopic (SEM) support uniform filler dispersions. electronic spectral substantiate changes in band structure composite leading to optoelectronic properties. fluorescent emission dopant-dependent photonic emissions, dielectric properties, such constant (e′) loss (e″), increase an ...
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