ABSTRACT
The present study shows effect of nano calcium carbonate (nano-CaCO3) in LLDPE/LDPE/PLA blend compatibilized with MA-g-PE in photodegrdation. LLDPE/LDPE/PLA blend with and without n-CaCO3 were tested for durability towards weather condition. Prepared blends were exposed for 144 hours (hrs) in accelerated weatherometer. These analyses were completed in outdoor environmental condition like heat, moisture and UV light to study the degradability. Tensile properties of the blends were recorded at different time intervals and compared with neat LLDPE/LDPE/PLA blend. Effect of accelerated weathering on tensile properties were observed and found that tensile strength was decreased upto 56% with time. DSC SEM, FTIR analysis were also used to analyze the degradation. It is indicated that the rate of photodegradation of nano-CaCO3 in LLDPE/LDPE/PLA as a nano composite is much faster than that of LLDPE/LDPE/PLA.
