Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1279, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2023.134990
Keywords
Waste photopolymer; PCL; Food packaging; Shape memory; Thermal
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The aim of this study is to prepare waste photopolymer (WPP) / poly e-caprolactone (PCL) blends for food packaging. The blend films were characterized using ATR-FTIR, TGA, and DSC. The addition of WPP improved water vapor permeability, but reduced color values. These blends can potentially be used as packaging material.
The aim of this study is to prepare waste photopolymer (WPP) / poly e-caprolactone (PCL) blends that can be used in food packaging with different ratios (5%, 10%, 20% and 30%) WPP. The structural properties of the blend films were characterized by attenuated total reflection-fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Opacity, surface color, water vapor permeability and shape memory properties of these films were examined. Pure PCL film exhibited more thermal stability compared to PCL/WPP blend films. Therewithal, the glass transition temperature of the pure PCL film showed a shift. Water vapor permeability improved with the addition of WPP. L*, a* and transmittance values reduced with increasing WPP, but b * value increased. It was thought that these polymer blends would enable to be used as packaging material in terms of compatibility and waste evaluation.
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