Role of Nano Zirconia Addition on Photodegradation of LLDPE/LDPE/PLA Blend Films

In this present study observed the effect of Nano filler (titanate coupling agent treated Nano-zirconia) on degradation behavior of PLA filled LLDPE/LDPE/MA-g-PE modified blend. Blown Films were exposed to UV light by using an accelerated weather meter (QUV). Results show that with the loading of Nano-zirconia in the LLDPE/LDPE/ PLA/MA-g-PE blend, tensile strength reduced to 47-54% before total rupture. Nano composite films lose weight by 4 to 6% in 144 hrs. However, without the addition of Nano filler, blends lose their weight only 0.76%. Thermal behavior of degraded Nano composite blown films was studied by using Differential Scanning Calorimetry (DSC) and Thermo Gravimeter Analyzer (TGA). The morphological changes were observed by the Scanning Electron Microscope (SEM). FTIR was used for change in functional group study.