Photooxidation of Poly(vinyl butyral) Films by UV/Ozone Irradiation

Joo, Jin-Woo; Jang, Jinho

doi:10.5764/tcf.2015.27.2.113

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Some cracks and planar changes in the polymer structure caused permeability and UV protection performance changes. 35 As the UV degradation time increases, the UV protective property of BNQDs decreases. However, it shows higher protection even at 240 h of degradation compared to the 24 h of degradation of the neat polymer film samples.…”

Section: Resultsmentioning

confidence: 99%

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Boron nitride quantum dots/polyvinyl butyral nanocomposite films for the enhanced photoluminescence and UV shielding properties

Emir,

Kuru

2024

J of Applied Polymer Sci

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The present investigation focused on the effect of boron nitride quantum dots (BNQDs) as a filler on the optical properties of polyvinyl butyral (PVB) nanocomposites. Herein, polymer nanocomposite films with advanced UV protection and high photoluminescence properties were successfully synthesized. Polymer nanocomposite films were produced by adding BNQDs to the polymer in different ratios by a simple solution forming and casting method. The films were decomposed at different UV degradation times, and their UV protective properties were tested. The structural, morphological, optical and chemical interaction of BNQDs/PVB nanocomposites was confirmed by Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Fourier Transform Infrared (FTIR), micro‐Raman spectroscopy, ultraviolet and visible (UV–Vis), and photoluminescence (PL) analyzes. As the amount of BNQDs in the polymer increased, the intensity of the bright images separated from the polymer also increased. TEM images confirmed the good distribution of quantum dots in PVB polymer matrix. Polymer composites doped with 0.25% and 0.4% BNQDs show excellent UV‐shielding properties as the transmittance in the UV region decreased about 69% and 95%, respectively. As the addition of BNQDs into the polymer increased, the PL emission of the pure PVB film, which showed almost no emission, increased significantly.

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Section: Resultsmentioning

confidence: 99%

“…As explained in SEM images, this is mainly due to changes in the morphological structure of PVB after UV degradation. Some cracks and planar changes in the polymer structure caused permeability and UV protection performance changes 35 . As the UV degradation time increases, the UV protective property of BNQDs decreases.…”

Section: Resultsmentioning

confidence: 99%