Experimental Studies of UV Weather Ability on High Density Polyethylene with and without UV Stabilizer

HDPE is one of the most widely used plastics in the world. This is used in lorry bags, underground HDPE pipe and fuel tank of airspace body. It is a stable material due to its carbon-carbon bond, causing their slow degradation. In this experimental study, two different specimens one with UV stabilized HDPE grade and non UV stabilized HDPE grade. Here we are doing experimental study of HDPE pipe which is used in network line pipe and drain pipe. Now these HDPE samples are exposed to UV-Weathering acceleration at different exposure times, 7, 15, 21, 48 and 96 days, during this period their thermal properties, mechanical properties and life time prediction were evaluated. We are doing tensile and impact tests on both HDPE, before UV and after UV. After this test we observe that the properties of stabilized HDPE and non-stabilized HDPE at the same exposure time. In this experimental study we are only comparing the properties between two different HDPE grades. This study is being conducted to determine the physical and mechanical properties under varying time but at a single constant temperature in QUV accelerated weathering machine. This experimental study is being done to describe the degradation of HDPE and life time prediction under estimated time.