The research of physical and mechanical indicators of filled food soot of polyethylene film for dairy and food products after exposing to its pulse UV radiation

The research objective was receiving new experimental data on the influence of pulse ultra-violet radiation on physical and mechanical indicators ofpolyethylene film filled with food soot for dairy and food products. Experimental model installation with using a pulse xenon lamp which worked in the modes providing the range of superficial doses of radiation from 18 to 64 mdzh/cm2 was developed. As the objects of the research polyethylene films of two types were used: singlelayer unfilled, three-layer coextruded, filled with food soot, with concentration 3.0 % mass, used for packing dairy products, including milk, sour cream, cottage cheese, yogurts, etc. Physical and mechanical characteristics of the studied samples were analyzed according to the State Standard 14236 "Films polymeric. Test method on stretching". As the main feature influencing the strength characteristics of polymeric film materials in this research superficial dose of radiation was taken. Physical and mechanical tests of irradiated polymeric films of the class of polyolefins with the filler and without filler carried out according to the existing standard and technical documentation (State Standard 14236-81). The tests were carried out on the samples cut out in longitudinal and cross directions by explosive Shimadzu car. The received results testify to the change of physical and mechanical characteristics for 18.1-25.5 % depending on the conditions of the impact on polymeric materials. After analyzing the received results of the experiment, it is possible to draw an unambiguous conclusion: pulse UF-radiation in the range of superficial doses of radiation (18-64 mdzh/cm2) influences change of breaking point at the gap on polyethylene film materials with filler food soot in concentration 3.0 %mass.